PUMA publications for /user/ima-publ/f_bauerhttps://puma.ub.uni-stuttgart.de/user/ima-publ/f_bauerPUMA RSS feed for /user/ima-publ/f_bauer2024-03-29T02:04:50+01:00Numerical and Experimental Analyses of the Multiscale Effects in the Tribological System Rotary Shaft Sealshttps://puma.ub.uni-stuttgart.de/bibtex/241a7e5fb03363ffd7d5105de5a403860/ima-publima-publ2024-01-29T13:42:54+01:00F_Bauer J_Grün M_Gohs S_Feldmeth dichtungstechnik ima presentation <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jeremias Grün" itemprop="url" href="/person/19f3f669de109b07b30fde450d81ba5df/author/0"><span itemprop="name">J. Grün</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Marco Gohs" itemprop="url" href="/person/19f3f669de109b07b30fde450d81ba5df/author/1"><span itemprop="name">M. Gohs</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/19f3f669de109b07b30fde450d81ba5df/author/2"><span itemprop="name">S. Feldmeth</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/19f3f669de109b07b30fde450d81ba5df/author/3"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information">(<em><span>2024<meta content="2024" itemprop="datePublished"/></span></em>)<em>748.</em></span>Mon Jan 29 13:42:54 CET 2024748Numerical and Experimental Analyses of the Multiscale Effects in the Tribological System Rotary Shaft Seals2024F_Bauer J_Grün M_Gohs S_Feldmeth dichtungstechnik ima presentation Sealing Systems under Starved Lubrication Conditionshttps://puma.ub.uni-stuttgart.de/bibtex/25d97bcb1ed709113244a4c8438d81ddd/ima-publima-publ2024-01-15T16:45:26+01:00F_Bauer J_Grün L_Merkle M_Baumann dichtungstechnik ima presentation <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Lukas Merkle" itemprop="url" href="/person/12992d8a51ce690cacfd9ec50597b2e3c/author/0"><span itemprop="name">L. Merkle</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jeremias Grün" itemprop="url" href="/person/12992d8a51ce690cacfd9ec50597b2e3c/author/1"><span itemprop="name">J. Grün</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/12992d8a51ce690cacfd9ec50597b2e3c/author/2"><span itemprop="name">M. Baumann</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/12992d8a51ce690cacfd9ec50597b2e3c/author/3"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information">(<em><span>12.-13. Oktober 2022<meta content="12.-13. Oktober 2022" itemprop="datePublished"/></span></em>)<em>735.</em></span>Mon Jan 15 16:45:26 CET 2024Frankfurt am MainInternational Sealing ConferenceOktober735561- 567Sealing Systems under Starved Lubrication Conditions2022F_Bauer J_Grün L_Merkle M_Baumann dichtungstechnik ima presentation 12.-13. Various operating conditions can cause sealing systems to be insufficiently supplied with oil, resulting in starved lubrication. This paper deals with the experimental investigation of starved
lubrication operating conditions. For this purpose, the test rig configuration used is introduced. The influence of starved lubrication on 3 different sealing systems was investigated. In addition to a standard elastomeric rotary shaft seal, a multi-lip initially grease-filled elastomeric rotary shaft seal and a PTFE sleeve with circumferential grooves were employed. The results show that the standard rotary shaft seal is unsuitable for the investigated starved lubrication conditions. The other two sealing systems performed better in comparison and are suitable for operation with a starved oil supply, at least for short durations.Formation of Micro Lead in Cylindrical Plunge Grindinghttps://puma.ub.uni-stuttgart.de/bibtex/25d6d6bbf106a7bfa0d50eef70a2465ca/ima-publima-publ2024-01-15T16:39:00+01:00F_Bauer J_Röttger M_Baumann S_Barth T_Bergs dichtungstechnik ima peer-review presentation <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jannik Röttger" itemprop="url" href="/person/17bf1311efbabc2a6cf59dea50af41644/author/0"><span itemprop="name">J. Röttger</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/17bf1311efbabc2a6cf59dea50af41644/author/1"><span itemprop="name">M. Baumann</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/17bf1311efbabc2a6cf59dea50af41644/author/2"><span itemprop="name">F. Bauer</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Sebastian Barth" itemprop="url" href="/person/17bf1311efbabc2a6cf59dea50af41644/author/3"><span itemprop="name">S. Barth</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Thomas Bergs" itemprop="url" href="/person/17bf1311efbabc2a6cf59dea50af41644/author/4"><span itemprop="name">T. Bergs</span></a></span></span>. </span><span class="additional-entrytype-information">(<em><span>12.-13. Oktober 2022<meta content="12.-13. Oktober 2022" itemprop="datePublished"/></span></em>)<em>734 (peer-review).</em></span>Mon Jan 15 16:39:00 CET 2024Frankfurt am MainInternational Sealing ConferenceOktober734 (peer-review)335 - 354Formation of Micro Lead in Cylindrical Plunge Grinding2022F_Bauer J_Röttger M_Baumann S_Barth T_Bergs dichtungstechnik ima peer-review presentation 12.-13. Lead, especially micro lead, on ground shaft sealing surfaces has been an ongoing issue in
sealing technology for many years. Now that suitable lead measuring methods have finally
been developed, the scientific focus has shifted from the measurement of lead and its influence on the sealing function to the formation of lead. Experimental investigations have been
carried out to analyse the influence of the process parameters on the formation of micro lead
during external cylindrical plunge grinding. The results show that micro lead occurs using industrial common parameters. The influence of the grinding tool specification, the dressing and
the grinding parameters on the micro lead structures are described and discussed.Regenerative Thermoplastic Polyurethane for Hydraulic Rod Seals – Time-Accelerated Testinghttps://puma.ub.uni-stuttgart.de/bibtex/2fca8c0da554697da12a0fb462dfba97c/ima-publima-publ2024-01-15T16:33:22+01:00F_Bauer L_Hörl O_Feuchtmüller S_Bekgulyan S_Feldmeth dichtungstechnik ima presentation <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Sumbat Bekgulyan" itemprop="url" href="/person/1b345360789e3722353b367bdd78220f6/author/0"><span itemprop="name">S. Bekgulyan</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/1b345360789e3722353b367bdd78220f6/author/1"><span itemprop="name">S. Feldmeth</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Oliver Feuchtmüller" itemprop="url" href="/person/1b345360789e3722353b367bdd78220f6/author/2"><span itemprop="name">O. Feuchtmüller</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Lothar Hörl" itemprop="url" href="/person/1b345360789e3722353b367bdd78220f6/author/3"><span itemprop="name">L. Hörl</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1b345360789e3722353b367bdd78220f6/author/4"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information">(<em><span>12.-13. Oktober 2022<meta content="12.-13. Oktober 2022" itemprop="datePublished"/></span></em>)<em>733.</em></span>Mon Jan 15 16:33:22 CET 2024Frankfurt am MainInternational Sealing ConferenceOktober733569 - 581Regenerative Thermoplastic Polyurethane for Hydraulic Rod Seals – Time-Accelerated Testing2022F_Bauer L_Hörl O_Feuchtmüller S_Bekgulyan S_Feldmeth dichtungstechnik ima presentation 12.-13. In a joint research project within the ZIM programme, sustainable high performance TPUs
(thermo-plastic polyurethane) for hydraulic rod seal rings were developed by replacing conventional raw materials with regenerative biogenic structural components. Hydraulic rod seal
rings were manufactured from these biogenic materials and time-accelerated tested to analyse their extrusion and wear behaviour. This paper shows the developed test methods as
well as the results obtained with these. In all tests, various TPU prototypes were used in combination with the hydraulic fluids intended for this purpose (water-based, rapidly biodegradable). The prototype seal rings manufactured of the new developed regenerative TPU compounds were comparable to non-regenerative TPU compounds regarding their functional behaviour.Formation of Macro Lead Using Plunge Grinding – a Kinematic Approachhttps://puma.ub.uni-stuttgart.de/bibtex/267e93e508dad6f350f2f6f43c3cc67e8/ima-publima-publ2024-01-15T16:26:38+01:003DM F_Bauer G_Haffner M_Baumann dichtungstechnik ima peer-review presentation <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Georg Haffner" itemprop="url" href="/person/165768c5f54e95f04b5b0cf93b7b97c3d/author/0"><span itemprop="name">G. Haffner</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/165768c5f54e95f04b5b0cf93b7b97c3d/author/1"><span itemprop="name">M. Baumann</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/165768c5f54e95f04b5b0cf93b7b97c3d/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information">(<em><span>12.-13. Oktober 2022<meta content="12.-13. Oktober 2022" itemprop="datePublished"/></span></em>)<em>732 (peer-review).</em></span>Mon Jan 15 16:26:38 CET 2024Frankfurt am MainInternational Sealing ConferenceOktober732 (peer-review)193 - 209Formation of Macro Lead Using Plunge Grinding – a Kinematic Approach20223DM F_Bauer G_Haffner M_Baumann dichtungstechnik ima peer-review presentation 12.-13. Plunge grinding is considered to produce lead free surfaces for the usage with rotary shaft
seals. The term “lead” summarizes all surface structures, which create a rotation dependent
pumping effect. Since lead influences the complex tribological system “rotary shaft seal”, it is
essential that the process “plunge grinding” manufactures surfaces without lead.
A kinematic simulation model of the manufacturing process “plunge grinding” was developed
to understand and visualize the complex interactions between the manufacturing parameters
and the macro lead parameters on the surface. Additionally, an approach for the stochastic
influence on the surface is also presented to investigate parameters for lead free surfaces.
The model has been validated by the measurement of plunge ground parts with the same
manufacturing parameters.Correlation between Wetting Properties and the Susceptibility to Wear of Rotary Shaft Sealing Systemshttps://puma.ub.uni-stuttgart.de/bibtex/21344e38a10f4b84ce7ae1939d1e0bfcc/ima-publima-publ2024-01-15T16:20:20+01:00F_Bauer M_Baumann P_Fricker dichtungstechnik ima peer-review presentation <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Philipp Fricker" itemprop="url" href="/person/15b747f1375b1a28df51ce27d58f357ad/author/0"><span itemprop="name">P. Fricker</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/15b747f1375b1a28df51ce27d58f357ad/author/1"><span itemprop="name">M. Baumann</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/15b747f1375b1a28df51ce27d58f357ad/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information">(<em><span>12.-13. Oktober 2022<meta content="12.-13. Oktober 2022" itemprop="datePublished"/></span></em>)<em>731 (peer-review).</em></span>Mon Jan 15 16:20:20 CET 2024Frankfurt am MainInternational Sealing ConferenceOktober731 (peer-review)165 - 180Correlation between Wetting Properties and the Susceptibility to Wear of Rotary Shaft Sealing Systems2022F_Bauer M_Baumann P_Fricker dichtungstechnik ima peer-review presentation 12.-13. Modern lubricants (e.g. polyglycols, esters) cause problems when sealed with rotary shaft
seals. The wear of rotary shaft seals strongly depends on the wetting properties of the respective friction partners. The paper shows, how the susceptibility to wear of rotary shaft sealing
systems can be estimated by a combined consideration of the wetting properties of the sealing
components, the lubricants viscosity and the pumping rate of the sealing system. Investigations were carried out using polished steel counter faces made from eight different alloys,
together with FKM rotary shaft seals and eleven chemically different lubricants (mineral oils,
polyglycols, poly-α-olefins, esters and silicone oils).An empirical study on the breakaway friction and squeeze film effects of a polyurethane U-cup rod sealhttps://puma.ub.uni-stuttgart.de/bibtex/28f96f06fd3280c42f0d63d9e03e55ee0/ima-publima-publ2024-01-15T16:10:08+01:00F_Bauer L_Hörl O_Feuchtmüller dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Oliver Feuchtmüller" itemprop="url" href="/person/1d3b8acb754e0dce89825f3b5bdbfd07e/author/0"><span itemprop="name">O. Feuchtmüller</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Lothar Hörl" itemprop="url" href="/person/1d3b8acb754e0dce89825f3b5bdbfd07e/author/1"><span itemprop="name">L. Hörl</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1d3b8acb754e0dce89825f3b5bdbfd07e/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information">(<em><span>12.-13. Oktober 2022<meta content="12.-13. Oktober 2022" itemprop="datePublished"/></span></em>)<em>730 (peer-review).</em></span>Mon Jan 15 16:10:08 CET 2024Frankfurt am MainInternational Sealing ConferenceOktober730 (peer-review)451 - 462An empirical study on the breakaway friction and squeeze film effects of a polyurethane U-cup rod seal2022F_Bauer L_Hörl O_Feuchtmüller dichtungstechnik ima peer-review 12.-13. The influence of the dwell time and properties of oil on the breakaway friction of a U-cup rod
seal was analysed. A logarithmic correlation between the breakaway friction force and the
dwell time (in a range from 30 to 104 seconds) was found. We used oils from various viscosity
classes (ISO VG 32 …460) and chemical compositions (mineral oil, silicone oil, perfluoropolyether, polyglycol). An almost linear correlation between the dynamic viscosity and the breakaway friction was found. Among viscosity and dwell time, further properties of oil must have a
remarkable influence on the breakaway friction of rod seals. Using ellipsometry, we showed
that even a film thickness of approximately 8 nanometres can be squeezed out of the sealing
gap during dwell time.Influence of dynamic eccentricity on the pumping rate of rotary shaft seals at sub-zero temperatureshttps://puma.ub.uni-stuttgart.de/bibtex/2fd9d1e5a277bd721172d29afa551d40b/ima-publima-publ2024-01-15T16:01:33+01:00F_Bauer S_Bekgulyan S_Feldmeth dichtungstechnik ima peer-review presentation <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Sumbat Bekgulyan" itemprop="url" href="/person/15896e4e78e98d0bbe8526caae05d7eb0/author/0"><span itemprop="name">S. Bekgulyan</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/15896e4e78e98d0bbe8526caae05d7eb0/author/1"><span itemprop="name">S. Feldmeth</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/15896e4e78e98d0bbe8526caae05d7eb0/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information">(<em><span>12.-13. Oktober 2022<meta content="12.-13. Oktober 2022" itemprop="datePublished"/></span></em>)<em>728 (peer-review).</em></span>Mon Jan 15 16:01:33 CET 2024Frankfurt am MainInternational Sealing ConferenceOktober728 (peer-review)133 - 146Influence of dynamic eccentricity on the pumping rate of rotary shaft seals at sub-zero temperatures2022F_Bauer S_Bekgulyan S_Feldmeth dichtungstechnik ima peer-review presentation 12.-13. In this paper, the influence of dynamic eccentricity and low operating temperatures on the
pumping rate of elastomeric rotary shaft seals is analysed experimentally. For this purpose,
function tests and pumping rate measurements were carried out at different dynamic eccentricities up to 0.3 mm (0.6 mm TIR) and oil sump temperatures between +40 and -20 °C with
rotary shaft seals made of nitrile rubber (NBR) and fluoro rubber (FKM) in combination with
synthetic polyalphaolefin oil FVA PAO1. The function tests and the pumping rate measurements show the application limits of the rotary shaft seals under the combination of dynamic
eccentricity and low oil sump temperatureOn the prediction of the lubrication condition of grease sealing rotary shaft sealshttps://puma.ub.uni-stuttgart.de/bibtex/23b3b0bd551f08fe6c53a19402e5fc251/ima-publima-publ2024-01-15T14:45:26+01:00F_Bauer S_Feldmeth S_Hahn dichtungstechnik ima peer-review presentation <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Susanne Hahn" itemprop="url" href="/person/13aa39604b2e368758be2a9a683422aea/author/0"><span itemprop="name">S. Hahn</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/13aa39604b2e368758be2a9a683422aea/author/1"><span itemprop="name">S. Feldmeth</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/13aa39604b2e368758be2a9a683422aea/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information">(<em><span>12.-13. Oktober 2022<meta content="12.-13. Oktober 2022" itemprop="datePublished"/></span></em>)<em>727 (peer-review).</em></span>Mon Jan 15 14:45:26 CET 2024Frankfurt am MainInternational Sealing ConferenceOktober727 (peer-review)107 - 120On the prediction of the lubrication condition of grease sealing rotary shaft seals2022F_Bauer S_Feldmeth S_Hahn dichtungstechnik ima peer-review presentation 12.-13. The so called “tear-in” tests were developed to evaluate a correlation between the tear-in of a
grease dam in a tribological system and the lubricity of the grease. They were carried out with
a rheometer as equivalent system and 23 greases. The grease sample was sheared in the
gap between a rotating and a stationary plate with a linearly increasing shear rate. The motion
of the grease within this gap was observed optically with a high-speed camera. In addition,
the shear stress was measured and evaluated. The results of the tear-in tests correlate well
with functional tests using a rotary shaft sealing system.Influence of Lubricants on the Thermal Behaviour of Rotary Shaft Sealshttps://puma.ub.uni-stuttgart.de/bibtex/2102b14479982d221b7c1f3c5e04e8198/ima-publima-publ2024-01-09T16:02:44+01:00C_Olbrich F_Bauer S_Feldmeth Temperaturberechnung dichtungstechnik ima peer-review presentation <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/17f1cdb2eb99e1a4958e6c40621ecb40c/author/0"><span itemprop="name">S. Feldmeth</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Christoph Olbrich" itemprop="url" href="/person/17f1cdb2eb99e1a4958e6c40621ecb40c/author/1"><span itemprop="name">C. Olbrich</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/17f1cdb2eb99e1a4958e6c40621ecb40c/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information">(<em><span>12.-13. Oktober 2022<meta content="12.-13. Oktober 2022" itemprop="datePublished"/></span></em>)<em>729 (peer-review).</em></span>Tue Jan 09 16:02:44 CET 2024Frankfurt am MainInternational Sealing ConferenceOktober729 (peer-review)147 - 161Influence of Lubricants on the Thermal Behaviour of Rotary Shaft Seals2022C_Olbrich F_Bauer S_Feldmeth Temperaturberechnung dichtungstechnik ima peer-review presentation 12.-13. The thermal behaviour of rotary shaft seals is affected by the fluid which has to be sealed.
The fluid lubricates the sealing contact and determines the frictional heat generated there.
Additionally, the fluid influences the heat transfer to the environment. Both aspects were experimentally analysed by measuring the friction torque and the temperature on the air side
near the sealing contact during test runs with 16 different lubricants. The measurement results
show that the fluid affects the heat generation much more than the heat transfer. In general,
the friction torque is higher for more viscous fluids. However, several exceptions restrict this
finding.Temperaturberechnung – Erweitertes Berechnungstool für die Kontakttemperatur bei Radial-Wellendichtungenhttps://puma.ub.uni-stuttgart.de/bibtex/2a83063d3559bbd0c085dd548c2a09dfa/ima-publima-publ2024-01-08T14:48:18+01:00C_Olbrich F_Bauer J_Grün J_Hannss S_Feldmeth Temperaturberechnung dichtungstechnik ima <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Christoph Olbrich" itemprop="url" href="/person/1949ba174c3351c64c67fc68ec13cf605/author/0"><span itemprop="name">C. Olbrich</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/1949ba174c3351c64c67fc68ec13cf605/author/1"><span itemprop="name">S. Feldmeth</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jacqueline Hannss" itemprop="url" href="/person/1949ba174c3351c64c67fc68ec13cf605/author/2"><span itemprop="name">J. Hannss</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jeremias Grün" itemprop="url" href="/person/1949ba174c3351c64c67fc68ec13cf605/author/3"><span itemprop="name">J. Grün</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1949ba174c3351c64c67fc68ec13cf605/author/4"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><em><span itemprop="educationalUse">Heft 349</span>, </em><em>Abschlussbericht, Vorhaben 919. </em><em><span itemprop="producer">Forschungskuratoriums Maschinenbau e.V.</span>, </em><em>Frankfurt am Main, </em>(<em><span>2023<meta content="2023" itemprop="datePublished"/></span></em>)</span>Mon Jan 08 14:48:18 CET 2024Frankfurt am Main 747Abschlussbericht, Vorhaben 919Temperaturberechnung – Erweitertes Berechnungstool für die Kontakttemperatur bei Radial-WellendichtungenHeft 3492023C_Olbrich F_Bauer J_Grün J_Hannss S_Feldmeth Temperaturberechnung dichtungstechnik ima Ausfälle von Elastomer-Radial-Wellendichtungen sind häufig auf die Überhitzung des Kontaktbereichs
zwischen Radial-Wellendichtring (RWDR) und Welle zurück zu führen. Hohe Temperaturen im Kontaktbereich
entstehen meist durch erhöhte Reibleistung und/ oder durch eine schlechte Wärmeabfuhr aus
dem Kontaktbereich.
Im Rahmen dieses Projekts wurden unterschiedliche Einflussfaktoren auf die Wärmeentstehung und
die Wärmeabfuhr untersucht. Untersucht wurde dazu der Einfluss von Dichtringen mit Zusatzelementen,
wie Schutzlippen und Vliesen, der Einfluss von unterschiedlichen Ölen, sowie wasserbasierten Fluiden,
der Einfluss von Wellenbeschichtungen, der Einfluss der Wellengestaltung und der Einfluss der konstruktiven
Gestaltung des Dichtungsumfelds. Zu allen zuvor genannten Themen wurden Versuche auf
Reibmomentprüfständen durchgeführt.
Zusätzlich zu den Prüfstandsversuchen wurden für die Wellengestaltung und die konstruktive Gestaltung
des Dichtungsumfelds Simulationen durchgeführt. Die Übereinstimmung zwischen der Simulation
und den Versuchen ist gut.
Anhand der Versuchs- und Simulationsergebnisse wurden die wichtigsten Einflüsse auf die Temperatur
im Kontaktbereich ermittelt. Diese Einflüsse wurden in ein Berechnungstool für die Kontakttemperatur
integriert. Dadurch konnte ein praxistaugliches Berechnungstool für die Kontakttemperatur entwickelt
werden, welches die häufigsten Einsatzbedingungen von Radialwellendichtungen berücksichtigt. Das
Berechnungstool wurde um eine Datenbank mit allen im Projekt untersuchten Schmierstoffen ergänzt.
Zusätzlich wurde das Berechnungstool um Anwender- und Warnhinweise ergänzt, um die Konstruktive
Gestaltung des Dichtungs-Umfelds im Berechnungstool sinnvoll berücksichtigen zu können.
Zusätzlich wurde ein Katalog mit Optimierungsmaßnahmen erstellt. Damit werden Handwerkszeuge
geschaffen, um die Überhitzung von Radial-Wellendichtungen zu vermeiden.
Das Ziel des Forschungsvorhabens ist erreicht worden.Influence of Lubricants on the Thermal Behaviour of Rotary Shaft Sealshttps://puma.ub.uni-stuttgart.de/bibtex/27003b4ad614fbd5668c04738bb918b11/ima-publima-publ2023-11-28T16:51:54+01:00C_Olbrich F_Bauer S_Feldmeth Temperaturberechnung dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/17f1cdb2eb99e1a4958e6c40621ecb40c/author/0"><span itemprop="name">S. Feldmeth</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Christoph Olbrich" itemprop="url" href="/person/17f1cdb2eb99e1a4958e6c40621ecb40c/author/1"><span itemprop="name">C. Olbrich</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/17f1cdb2eb99e1a4958e6c40621ecb40c/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">Proceedings of the 21th International Sealing Conference (ISC)</span>, </em></span><em>Frankfurt am Main, </em><em><span itemprop="publisher">Fachverband Fluidtechnik im VDMA e.V</span>, </em>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>729.</em></span>Tue Nov 28 16:51:54 CET 2023Frankfurt am MainProceedings of the 21th International Sealing Conference (ISC)729FluidtechnikInfluence of Lubricants on the Thermal Behaviour of Rotary Shaft Seals2022C_Olbrich F_Bauer S_Feldmeth Temperaturberechnung dichtungstechnik ima peer-review Estimating the contact temperature and the pumping rate of rotary shaft sealshttps://puma.ub.uni-stuttgart.de/bibtex/27e9f8ab64518a83fee7e82f3b7877705/ima-publima-publ2023-11-27T14:44:42+01:00F_Bauer S_Bekgulyan S_Feldmeth Temperaturberechnung dichtungstechnik ima <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/150bd59ae5aa947adea9a0a9f3855b4e8/author/0"><span itemprop="name">S. Feldmeth</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Sumbat Bekgulyan" itemprop="url" href="/person/150bd59ae5aa947adea9a0a9f3855b4e8/author/1"><span itemprop="name">S. Bekgulyan</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/150bd59ae5aa947adea9a0a9f3855b4e8/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Jahrbuch Dichten, Kleben, Polymer 2024</span>, </em> </span>(<em><span>2023<meta content="2023" itemprop="datePublished"/></span></em>)<em>746.</em></span>Mon Nov 27 14:44:42 CET 2023Jahrbuch Dichten, Kleben, Polymer 2024746129-146Estimating the contact temperature and the pumping rate of rotary shaft seals2023F_Bauer S_Bekgulyan S_Feldmeth Temperaturberechnung dichtungstechnik ima New possibilities with a web applicationAdvanced Description of Shaft Lead with Structurebased Surface Analysishttps://puma.ub.uni-stuttgart.de/bibtex/21509b729f629d52c1b5195b4a839e697/ima-publima-publ2023-11-07T17:14:43+01:00F_Bauer M_Baumann M_Engelfried dichtungstechnik ima <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Maximilian Engelfried" itemprop="url" href="/person/16f8e9de5c42da565f3bd7a5d24be83ba/author/0"><span itemprop="name">M. Engelfried</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/16f8e9de5c42da565f3bd7a5d24be83ba/author/1"><span itemprop="name">M. Baumann</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/16f8e9de5c42da565f3bd7a5d24be83ba/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">9th International Tribology Conference</span>, </em></span>(<em><span>2023<meta content="2023" itemprop="datePublished"/></span></em>)<em>744.</em></span>Tue Nov 07 17:14:43 CET 20239th International Tribology Conference744Advanced Description of Shaft Lead with Structurebased Surface Analysis2023F_Bauer M_Baumann M_Engelfried dichtungstechnik ima Multiscale Modeling and Simulation of Rotary Shaft Sealshttps://puma.ub.uni-stuttgart.de/bibtex/287afd03ab7440dfb74770b8e85295761/ima-publima-publ2023-11-07T17:14:39+01:00F_Bauer J_Grün S_Feldmeth dichtungstechnik ima <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jeremias Grün" itemprop="url" href="/person/145f883ef6d9452b7cd631bf6a65c24ab/author/0"><span itemprop="name">J. Grün</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/145f883ef6d9452b7cd631bf6a65c24ab/author/1"><span itemprop="name">S. Feldmeth</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/145f883ef6d9452b7cd631bf6a65c24ab/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">9th International Tribology Conference</span>, </em></span>(<em><span>2023<meta content="2023" itemprop="datePublished"/></span></em>)<em>743.</em></span>Tue Nov 07 17:14:39 CET 20239th International Tribology Conference743Multiscale Modeling and Simulation of Rotary Shaft Seals2023F_Bauer J_Grün S_Feldmeth dichtungstechnik ima Advanced Sealing Systems for a Sustainable Futurehttps://puma.ub.uni-stuttgart.de/bibtex/2cd34eb8f16a0c51bc5a16a9d75165bf8/ima-publima-publ2023-11-07T17:14:34+01:00F_Bauer J_Grün dichtungstechnik ima <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/156676c6eea00dbb084d67f0bfba448da/author/0"><span itemprop="name">F. Bauer</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jeremias Grün" itemprop="url" href="/person/156676c6eea00dbb084d67f0bfba448da/author/1"><span itemprop="name">J. Grün</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">9th International Tribology Conference</span>, </em></span>(<em><span>2023<meta content="2023" itemprop="datePublished"/></span></em>)<em>742.</em></span>Tue Nov 07 17:14:34 CET 20239th International Tribology Conference742Advanced Sealing Systems for a Sustainable Future2023F_Bauer J_Grün dichtungstechnik ima Modeling of the Pumping Rate Behavior of Shaft Sealing Counterfaceshttps://puma.ub.uni-stuttgart.de/bibtex/2e3b37a6dcdef6d09aa3c7fdab8a035e0/ima-publima-publ2023-11-07T16:46:05+01:003D-Makrodrall F_Bauer M_Baumann M_Engelfried dichtungstechnik ima <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Maximilian Engelfried" itemprop="url" href="/person/1c86e2cf93d4d982c1cc41b8fad85b68b/author/0"><span itemprop="name">M. Engelfried</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/1c86e2cf93d4d982c1cc41b8fad85b68b/author/1"><span itemprop="name">M. Baumann</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1c86e2cf93d4d982c1cc41b8fad85b68b/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">77th STLE Annual Meeting & Exhibition</span>, </em></span>(<em><span>2023<meta content="2023" itemprop="datePublished"/></span></em>)<em>740.</em></span>Tue Nov 07 16:46:05 CET 202377th STLE Annual Meeting & Exhibition740Modeling of the Pumping Rate Behavior of Shaft Sealing Counterfaces20233D-Makrodrall F_Bauer M_Baumann M_Engelfried dichtungstechnik ima Approach to the Description of Macro Lead Formation by Means of a Kinematics Simulation Modelhttps://puma.ub.uni-stuttgart.de/bibtex/2de0c342387055fe4f818d0c34ef9801b/ima-publima-publ2023-11-07T16:07:08+01:003DM F_Bauer G_Haffner M_Baumann S_Schmuker dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Georg Haffner" itemprop="url" href="/person/1436a28b0527f379692cb9ee479fe8e46/author/0"><span itemprop="name">G. Haffner</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/1436a28b0527f379692cb9ee479fe8e46/author/1"><span itemprop="name">M. Baumann</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Stefan Schmuker" itemprop="url" href="/person/1436a28b0527f379692cb9ee479fe8e46/author/2"><span itemprop="name">S. Schmuker</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1436a28b0527f379692cb9ee479fe8e46/author/3"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Tribology transactions</span>, </em> <em><span itemtype="http://schema.org/PublicationVolume" itemscope="itemscope" itemprop="isPartOf"><span itemprop="volumeNumber">65 </span></span>(<span itemprop="issueNumber">4</span>):
<span itemprop="pagination">749-761</span></em> </span>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>719 (peer-review).</em></span>Tue Nov 07 16:07:08 CET 2023Tribology transactions719 (peer-review)4749-761Approach to the Description of Macro Lead Formation by Means of a Kinematics Simulation Model6520223DM F_Bauer G_Haffner M_Baumann S_Schmuker dichtungstechnik ima peer-review Multiphase Conjugate Heat Transfer Analyses on the Assembly Situation of Rotary Shaft Sealshttps://puma.ub.uni-stuttgart.de/bibtex/25e27d44a790f4c4e8a7168970a565c26/ima-publima-publ2023-10-16T09:53:35+02:00C_Olbrich F_Bauer J_Grün J_Hannss S_Feldmeth Temperaturberechnung dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jacqueline Hannss" itemprop="url" href="/person/102e718ae19bc4d2d30c504b25b3e8d22/author/0"><span itemprop="name">J. Hannss</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jeremias Grün" itemprop="url" href="/person/102e718ae19bc4d2d30c504b25b3e8d22/author/1"><span itemprop="name">J. Grün</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Christoph Olbrich" itemprop="url" href="/person/102e718ae19bc4d2d30c504b25b3e8d22/author/2"><span itemprop="name">C. Olbrich</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/102e718ae19bc4d2d30c504b25b3e8d22/author/3"><span itemprop="name">S. Feldmeth</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/102e718ae19bc4d2d30c504b25b3e8d22/author/4"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Applied Sciences</span>, </em> </span>(<em><span>2023<meta content="2023" itemprop="datePublished"/></span></em>)<em>741 (peer-review).</em></span>Mon Oct 16 09:53:35 CEST 2023Applied Sciences741 (peer-review)19Multiphase Conjugate Heat Transfer Analyses on the Assembly Situation of Rotary Shaft Seals132023C_Olbrich F_Bauer J_Grün J_Hannss S_Feldmeth Temperaturberechnung dichtungstechnik ima peer-review Rotary shaft seals prevent the exchange of fluid at shaft passages. Their function and service life depend decisively on the temperature in the contact area between the sealing edge and the shaft. Since the temperature depends on both the generation of frictional heat in the contact area and the heat transfer to the surrounding sealing system, the design of the sealing system is crucial. Within the scope of this work, multiphase conjugate heat-transfer analyses were performed considering different assembly situations. The computed results were presented and contrasted to experimental data. This resulted in a valid model for predicting the temperature in the sealing system, which provided insight into the influence of the sealing surroundings on the contact temperature.Modeling and Simulation of the Dynamic Sealing and Lubrication Mechanism of Rotary Shaft Sealshttps://puma.ub.uni-stuttgart.de/bibtex/2980699b54c2ace5cc0312ac95421c0d9/ima-publima-publ2023-06-30T14:44:49+02:00F_Bauer J_Grün S_Feldmeth dichtungstechnik ima <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jeremias Grün" itemprop="url" href="/person/120aadbfbee43369cf412b3958e4fed97/author/0"><span itemprop="name">J. Grün</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/120aadbfbee43369cf412b3958e4fed97/author/1"><span itemprop="name">S. Feldmeth</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/120aadbfbee43369cf412b3958e4fed97/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">77th STLE Annual Meeting & Exhibition</span>, </em></span>(<em><span>2023<meta content="2023" itemprop="datePublished"/></span></em>)<em>739.</em></span>Fri Jun 30 14:44:49 CEST 202377th STLE Annual Meeting & Exhibition739Modeling and Simulation of the Dynamic Sealing and Lubrication Mechanism of Rotary Shaft Seals2023F_Bauer J_Grün S_Feldmeth dichtungstechnik ima Multiscale Structural Mechanics of Rotary Shaft Seals: Numerical Studies and Visual Experimentshttps://puma.ub.uni-stuttgart.de/bibtex/22f9cea89973183f00b8d5d3d07c952c8/ima-publima-publ2023-06-30T14:30:28+02:00J_Grün M_Gohs dichtungstechnik f_bauer ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jeremias Grün" itemprop="url" href="/person/16e05e8c9df000ce3a5aaa6e83e38b5fe/author/0"><span itemprop="name">J. Grün</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Marco Gohs" itemprop="url" href="/person/16e05e8c9df000ce3a5aaa6e83e38b5fe/author/1"><span itemprop="name">M. Gohs</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/16e05e8c9df000ce3a5aaa6e83e38b5fe/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Lubricants</span>, </em> </span>(<em><span>2023<meta content="2023" itemprop="datePublished"/></span></em>)<em>738 (peer-review).</em></span>Fri Jun 30 14:30:28 CEST 2023Lubricants738 (peer-review)6Multiscale Structural Mechanics of Rotary Shaft Seals: Numerical Studies and Visual Experiments112023J_Grün M_Gohs dichtungstechnik f_bauer ima peer-review Although rotary shaft seals have been used successfully in many industrial applications for decades, their tribological behavior is still not completely understood. In-depth knowledge of the structural mechanics is essential for the design and optimization of such sealing systems. High complexity results from the multiscale interactions in the tribological system rotary shaft seal. Large macroscopic deformations occur due to the hyperelastic material behavior of elastomers coupled with microscopic tangential distortions of the sealing edge surface in the contact area. This paper includes both numerical and experimental studies on the tribological behavior of rotary shaft seals. A multiscale finite element model provides the simulation of the macroscopic deformations and the microscopic displacements. A test rig equipped with a hollow glass shaft enables in situ visual contact analyses, qualitative determinations of pressure distributions and quantitative measurements of elastomer surface distortions. The optical phenomenon of frustrated total internal reflection enables qualitative evaluations of the pressure distribution. Particle image velocimetry (PIV) is employed to quantify the tangential distortions. The test rig enables the measurement of the friction torque with the same configuration. The results of the numerical and experimental investigations for the radial load, friction torque and tangential distortions are compared and discussed. This serves to validate the simulation methods and the correlation of the measured parameters. This finally results in a solid and validated basis for further tribological investigations of rotary shaft seals.Elastohydrodynamic Simulation of Pneumatic Sealing Friction Considering 3D Surface Topographyhttps://puma.ub.uni-stuttgart.de/bibtex/2bf224cb6d1919b9331ff4ba6e3776625/ima-publima-publ2023-02-23T15:11:49+01:00F_Bauer K_Schmitz M_Baumann N_Bauer S_Feldmeth dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Niklas Bauer" itemprop="url" href="/person/1ed490e3be08a3c1a686153a981d30022/author/0"><span itemprop="name">N. Bauer</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/1ed490e3be08a3c1a686153a981d30022/author/1"><span itemprop="name">M. Baumann</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/1ed490e3be08a3c1a686153a981d30022/author/2"><span itemprop="name">S. Feldmeth</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1ed490e3be08a3c1a686153a981d30022/author/3"><span itemprop="name">F. Bauer</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Katharina Schmitz" itemprop="url" href="/person/1ed490e3be08a3c1a686153a981d30022/author/4"><span itemprop="name">K. Schmitz</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Chemical Engineering & Technology</span>, </em> <em><span itemtype="http://schema.org/PublicationVolume" itemscope="itemscope" itemprop="isPartOf"><span itemprop="volumeNumber">46 </span></span>(<span itemprop="issueNumber">1 Special Issue: Digital Reliable Sustainable</span>):
<span itemprop="pagination">167-174</span></em> </span>(<em><span>January 2023<meta content="January 2023" itemprop="datePublished"/></span></em>)<em>737 (peer-review).</em></span>Thu Feb 23 15:11:49 CET 2023Chemical Engineering & Technology1737 (peer-review)1 Special Issue: Digital Reliable Sustainable167-174Elastohydrodynamic Simulation of Pneumatic Sealing Friction Considering 3D Surface Topography462023F_Bauer K_Schmitz M_Baumann N_Bauer S_Feldmeth dichtungstechnik ima peer-review This contribution presents an elastohydrodynamic lubrication (EHL) model for pneumatic spool valves. For an accurate estimation of the transient friction of this tribological sealing system, the surface topography of the cylindrical sealing counterfaces of the valve housings are measured and analyzed with an optical surface measurement instrument. Based on the surface topography data, tribological properties and flow factors of the system are derived. It has been found that the consideration of the surface topography has a significant influence on the simulation results of the EHL model, lowering the calculated friction force by up to 20 %.Assessment of the Lubricity of Grease-Sealing Rotary Shaft Seals Based on Grease Propertieshttps://puma.ub.uni-stuttgart.de/bibtex/29a473f795765e1170d739bcc78720ed4/ima-publima-publ2022-12-19T12:28:24+01:00F_Bauer S_Feldmeth S_Hahn dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Susanne Hahn" itemprop="url" href="/person/17e0a306f7be92568bed0be90ace2f385/author/0"><span itemprop="name">S. Hahn</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/17e0a306f7be92568bed0be90ace2f385/author/1"><span itemprop="name">S. Feldmeth</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/17e0a306f7be92568bed0be90ace2f385/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Chemical Engineering Technology</span>, </em> <em><span itemtype="http://schema.org/PublicationVolume" itemscope="itemscope" itemprop="isPartOf"><span itemprop="volumeNumber">46 </span></span>(<span itemprop="issueNumber">1</span>):
<span itemprop="pagination">53-60</span></em> </span>(<em><span>January 2023<meta content="January 2023" itemprop="datePublished"/></span></em>)<em>726 (peer-review).</em></span>Mon Dec 19 12:28:24 CET 2022Chemical Engineering Technology1726 (peer-review)153-60Assessment of the Lubricity of Grease-Sealing Rotary Shaft Seals Based on Grease Properties462023F_Bauer S_Feldmeth S_Hahn dichtungstechnik ima peer-review Grease-lubricated sealing systems have an increased risk of starved lubrication. For this work, the lubricity of 23 greases in a rotary shaft sealing system was evaluated with a new test and evaluation method. The lubricity was then correlated with rheological and other grease properties. These grease properties are either available by the data sheet or can be measured with low effort. The results of the correlation allow a preselection of greases which are expected to lubricate rotary shaft seals well. This can support manufacturers and users in considering the lubrication of the sealing system early in the development process.How Wetting Properties Influence the Wear of Radial Lip Sealing Systemhttps://puma.ub.uni-stuttgart.de/bibtex/2bc68d97e6ab9b5b4fec1b3a5a1bfa7e6/ima-publima-publ2022-12-19T12:20:48+01:00F_Bauer M_Baumann P_Fricker dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Philipp Fricker" itemprop="url" href="/person/1cabb1f5746c18e4e717c06b48e896c80/author/0"><span itemprop="name">P. Fricker</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Mathias Baumann" itemprop="url" href="/person/1cabb1f5746c18e4e717c06b48e896c80/author/1"><span itemprop="name">M. Baumann</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1cabb1f5746c18e4e717c06b48e896c80/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Chemical Engineering Technology</span>, </em> <em><span itemtype="http://schema.org/PublicationVolume" itemscope="itemscope" itemprop="isPartOf"><span itemprop="volumeNumber">46 </span></span>(<span itemprop="issueNumber">1</span>):
<span itemprop="pagination">61-70</span></em> </span>(<em><span>January 2023<meta content="January 2023" itemprop="datePublished"/></span></em>)<em>725 (peer-review).</em></span>Mon Dec 19 12:20:48 CET 2022Chemical Engineering Technology1725 (peer-review)161-70How Wetting Properties Influence the Wear of Radial Lip Sealing System462023F_Bauer M_Baumann P_Fricker dichtungstechnik ima peer-review Increased wear on radial lip seal systems is observed when sealing modern lubricants, such as polyglycols and esters. This can impair the function of the sealing system and ultimately lead to leakage. This work, carried out within the AiF research project “Welleneinlauf” (wear of counter faces) [1], shows methods to identify and predict excessive wear of radial lip sealing systems based on their wetting properties and pumping rate. The knowledge gained will support users by providing faster and more cost-effective testing methods early in the design process, thus enables a significant increase in the service life of radial lip sealing systems.An Empirical Study on the Wear of Reciprocating Hydraulic Rod Seals Using 15 Different Oilshttps://puma.ub.uni-stuttgart.de/bibtex/20586c754e1245add27ae1730467daee9/ima-publima-publ2022-12-19T11:07:58+01:00F_Bauer L_Hörl O_Feuchtmüller dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Oliver Feuchtmüller" itemprop="url" href="/person/17379d3587731b463751540006feb5e62/author/0"><span itemprop="name">O. Feuchtmüller</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Lothar Hörl" itemprop="url" href="/person/17379d3587731b463751540006feb5e62/author/1"><span itemprop="name">L. Hörl</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/17379d3587731b463751540006feb5e62/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Chemical Engineering Technology</span>, </em> <em><span itemtype="http://schema.org/PublicationVolume" itemscope="itemscope" itemprop="isPartOf"><span itemprop="volumeNumber">46 </span></span>(<span itemprop="issueNumber">1</span>):
<span itemprop="pagination">86-94</span></em> </span>(<em><span>January 2023<meta content="January 2023" itemprop="datePublished"/></span></em>)<em>724 (peer-review).</em></span>Mon Dec 19 11:07:58 CET 2022Chemical Engineering Technology1724 (peer-review)186-94An Empirical Study on the Wear of Reciprocating Hydraulic Rod Seals Using 15 Different Oils462023F_Bauer L_Hörl O_Feuchtmüller dichtungstechnik ima peer-review Hydraulic oils differ in their chemical composition and viscosity substantially. Their influence on the wear of rod seals is neither fully understood nor can be predicted precisely. The primary objective of this study was to evaluate the influence of various oils and their wetting properties on the wear of rod seals. In an empirical study, the wear of 30 commercially available polyurethane U-cups was investigated with 15 different oils using a recently built test rig. The wear of rod seals increased with lower viscosity and higher polarity of the oil. Both oil properties are combined in a new parameter which helps to assess the lubricity of oil and the wear of rod seals.Multiphase Computational Fluid Dynamics of Rotary Shaft Sealshttps://puma.ub.uni-stuttgart.de/bibtex/2d25d50a49114ae9081cabc4cfae95224/ima-publima-publ2022-12-13T11:12:59+01:00F_Bauer J_Grün S_Feldmeth dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jeremias Grün" itemprop="url" href="/person/1f8f243e72fd78c7783876a3a8586ef93/author/0"><span itemprop="name">J. Grün</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/1f8f243e72fd78c7783876a3a8586ef93/author/1"><span itemprop="name">S. Feldmeth</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1f8f243e72fd78c7783876a3a8586ef93/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Lubricants</span>, </em> <em><span itemtype="http://schema.org/PublicationVolume" itemscope="itemscope" itemprop="isPartOf"><span itemprop="volumeNumber">10 </span></span>(<span itemprop="issueNumber">12</span>):
<span itemprop="pagination">347</span></em> </span>(<em><span>December 2022<meta content="December 2022" itemprop="datePublished"/></span></em>)<em>736 (peer-review).</em></span>Tue Dec 13 11:12:59 CET 2022Lubricants12736 (peer-review)12347Multiphase Computational Fluid Dynamics of Rotary Shaft Seals102022F_Bauer J_Grün S_Feldmeth dichtungstechnik ima peer-review The primary task of rotary shaft seals is to prevent an unwanted fluid transfer between two areas. In shaft passages of gearboxes, for example, rotary shaft seals avoid the leakage of transmission oil to ambient air. This means the flow in the lubricant film in the sealing gap between the sealing edge and the shaft surface consists of at least two phases. Taking the phenomenon of cavitation into account, the flow consists of three phases. This study aims to provide an in-depth understanding of the multiphase flow in the lubricant film of rotary shaft seals. As experimental studies of the flow processes on a microscale have proven to be quite difficult, a simulation-based approach is applied. Computational fluid dynamics (CFD) serves to compute the transient multiphase flows in the lubricant film in the sealing gap. The computational domain is a three-dimensional microscale model of the lubricant film. The results show the transient hydrodynamic pressure buildup and the dynamic phase interactions during operation. This study provides far-reaching insights into the multiphase flow processes in the lubricant film in the sealing gap and simulation-based evidence of the lubrication and sealing mechanism of rotary shaft sealsLastkollektive RWDR – Gestaltung von Lastkollektiven zur Prüfung von Radial-Wellendichtungenhttps://puma.ub.uni-stuttgart.de/bibtex/2c0a7c2586f6b70cbe1da6ea97113b6c3/ima-publima-publ2022-09-29T11:06:33+02:00F_Bauer L_Merkle Lastkollektive dichtungstechnik ima <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Lukas Merkle" itemprop="url" href="/person/11f53e226ebff76e78c4169c313f7077c/author/0"><span itemprop="name">L. Merkle</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/11f53e226ebff76e78c4169c313f7077c/author/1"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><em><span itemprop="educationalUse">FVA Forschungsheft 1512</span>, </em><em>Abschlussbericht, Vorhaben 696I II / 696 IV. </em><em><span itemprop="producer">Forschungsvereinigung Antriebstechnik e.V.</span>, </em><em>Frankfurt am Main, </em>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)</span>Thu Sep 29 11:06:33 CEST 2022Frankfurt am Main 723Abschlussbericht, Vorhaben 696I II / 696 IVLastkollektive RWDR – Gestaltung von Lastkollektiven zur Prüfung von Radial-WellendichtungenFVA Forschungsheft 15122022F_Bauer L_Merkle Lastkollektive dichtungstechnik ima Elastomere Radial-Wellendichtungen werden in fast jedem antriebstechnischen Aggregat eingesetzt. Ohne Abdichtung der Wellendurchtrittstelle ist ein Betrieb unmöglich. Obwohl die Dichtringe millionenfach eingesetzt werden, kommt es immer wieder zum Systemschaden „Leckage“. Die Dichtringe zeigen als tribologischen Primärschaden beispielsweise Verhärtung, Risse oder exzessiven Verschleiß. Eine Berechnung der Lebensdauer ist für RWDR nach wie vor nicht möglich, daher sind Prüfläufe das einzige Werkzeug zur sicheren Auslegung von Dichtsystemen. Die Forschungsvorhaben der Projektreihe 696 haben zum Ziel, KmU und anderen Unternehmen einen Leitfaden zur systematischen Prüfung von Dichtsystemen zur Verfügung zu stellen. Wichtigstes Werkzeug dafür ist der vollständige Gesamtschadenskatalog. Das Wissen aus 696 I bis IV zum Thema Schadenanalyse, einstufigen und wechselnden Belastungen sowie zur Validierung der Ergebnisse unter industriellen Einsatzbedingungen wird in diesem Gesamtbericht zusammengeführt. Die Unternehmen können mit dem Leitfaden Schadensfälle analysieren und angepasste Kollektive für tribometrische Versuche erstellen. Damit können Dichtsysteme untersucht und optimiert werden. Leckage und Imageverlust können sicher vermieden werden. Die Erkenntnisse sind digitalisiert und stehen für den Wissenstransfer zur Verfügung. In der Projektreihe 696 wurden 278 Prüfläufe mit einer kumulierte Versuchslaufzeit von 108.117,4 h
(= 12,3 Jahre) und einem kumulierten Laufweg von fast 2 Millionen km individuell ausgewertet. Das Ziel des Forschungsvorhabens wurde erreicht.Influence of dressing parameters on the formation of micro lead on shaft sealing counterfaces during external cylindrical plunge grindinghttps://puma.ub.uni-stuttgart.de/bibtex/2b41162c7d05de5fc94178b436c04668a/ima-publima-publ2022-09-16T09:21:43+02:00F_Bauer J_Röttger M_Baumann S_Barth T_Bergs dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jannik Röttger" itemprop="url" href="/person/10eb82cbf0cd3e9085e5a45badea9fa80/author/0"><span itemprop="name">J. Röttger</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Thomas Bergs" itemprop="url" href="/person/10eb82cbf0cd3e9085e5a45badea9fa80/author/1"><span itemprop="name">T. Bergs</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Sebastian Barth" itemprop="url" href="/person/10eb82cbf0cd3e9085e5a45badea9fa80/author/2"><span itemprop="name">S. Barth</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/10eb82cbf0cd3e9085e5a45badea9fa80/author/3"><span itemprop="name">M. Baumann</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/10eb82cbf0cd3e9085e5a45badea9fa80/author/4"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Advances in Industrial and Manufacturing Engineering</span>, </em> </span>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>721 (peer-review).</em></span>Fri Sep 16 09:21:43 CEST 2022Advances in Industrial and Manufacturing Engineering721 (peer-review)Influence of dressing parameters on the formation of micro lead on shaft sealing counterfaces during external cylindrical plunge grinding2022F_Bauer J_Röttger M_Baumann S_Barth T_Bergs dichtungstechnik ima peer-review The function of radial sealing systems depends significantly on the shaft counterface. External cylindrical plunge grinding is considered the standard for the manufacturing of suitable shaft counterfaces. It creates a stochastic surface texture with many anisotropic groove-like grinding structures, oriented in the circumferential direction of the shaft. The structures are created by the grain engagement into the workpiece during the grinding process. This surface characteristic exhibits optimal properties for hydrodynamic lubrication between the seal and the shaft. Although there is no axial relative movement between grinding wheel and workpiece in plunge grinding, under unfavorable conditions grinding structures can be produced that deviate from the circumferential direction. These structures then transport fluid through the sealing during rotation. Structures, that cause fluid transportation because of inclined orientation to the circumferential direction, are referred to as micro lead. Especially for high rotational speeds, e.g. in electric powertrains, micro lead causes high pumping effects and therefore leakage and following failure of products. This publication presents findings on the influence of the dressing parameters on the formation of micro lead during external cylindrical plunge grinding. The experimental investigations show that especially negative dressing speed ratios lead to the formation of micro lead structures.Rotary Shaft Seals: Correlation of Wear Formation at the Sealing Edge and Shaft under Various Operating Conditionshttps://puma.ub.uni-stuttgart.de/bibtex/2a3e0217e4e78303bc33590f989cd15eb/ima-publima-publ2022-08-03T09:51:43+02:00F_Bauer L_Merkle M_Baumann dichtungstechnik peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Merkle Lukas" itemprop="url" href="/person/1a3ae7723323c9c8565175e854a13dedd/author/0"><span itemprop="name">M. Lukas</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/1a3ae7723323c9c8565175e854a13dedd/author/1"><span itemprop="name">M. Baumann</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1a3ae7723323c9c8565175e854a13dedd/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Tribology Transactions</span>, </em> </span>(<em><span>August 2022<meta content="August 2022" itemprop="datePublished"/></span></em>)<em>720 (peer-review).</em></span>Wed Aug 03 09:51:43 CEST 2022Tribology Transactions8720 (peer-review)1-15Rotary Shaft Seals: Correlation of Wear Formation at the Sealing Edge and Shaft under Various Operating Conditions2022F_Bauer L_Merkle M_Baumann dichtungstechnik peer-review Elastomeric rotary shaft seals are a common seal type for various industrial applications. They are comparably cheap and easy to use and offer an overall good performance. But the wear behavior of these sealing systems is not fully understood and not predictable so far. If a lip seal fails, it causes high maintenance costs and environmental damage. In this article, various tribological conditions are considered. For this purpose, the sealing systems are tested with multiple operating conditions relevant to practice. Three test series are conducted with rotary shaft seals BAUM5X7 75FKM585 on plunge ground shafts. The tests are carried out with two different circumferential velocities of the shaft (4.2 and 10 m/s), three different oil sump temperatures (40, 80, and 120 °C), two different lubricant types (FVA 3 and PG 3), and five different test durations (between 100 and 625 h). For a complete acquisition of the system condition, all shaft surfaces are measured in 2D and 3D before and after the test runs and the wear of the sealing edges is evaluated with a recently developed laser line triangulation method on the complete circumference of the sealing rings. Results show large amounts of wear, depending significantly on the operating conditions. A strong correlation of the wear effects in the tribocontact area of the sealing system becomes evident. This article helps to understand and avoid critical operating conditions concerning abrasive wear.Are Structure-Based Surface Analysis Methods Superior to Integral Methods? - Application Example: Lead on Shaft Counterfaces for Rotary Shaft Sealshttps://puma.ub.uni-stuttgart.de/bibtex/288857ba22a7f9c50f70191c1a38207f9/ima-publima-publ2022-08-03T09:44:50+02:00F_Bauer M_Baumann M_Engelfried dichtungstechnik <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Maximilian Engelfried" itemprop="url" href="/person/1d45dc839daaefe1b35f97c9c187c0f79/author/0"><span itemprop="name">M. Engelfried</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/1d45dc839daaefe1b35f97c9c187c0f79/author/1"><span itemprop="name">M. Baumann</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1d45dc839daaefe1b35f97c9c187c0f79/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">7th World Tribology Congress</span>, </em></span>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>718.</em></span>Wed Aug 03 09:44:50 CEST 20227th World Tribology Congress718Are Structure-Based Surface Analysis Methods Superior to Integral Methods? - Application Example: Lead on Shaft Counterfaces for Rotary Shaft Seals2022F_Bauer M_Baumann M_Engelfried dichtungstechnik On friction and surface energy in the tribological contact of rod sealshttps://puma.ub.uni-stuttgart.de/bibtex/250d0e53527e0698df8a77479ffbf2ea3/ima-publima-publ2022-08-03T09:40:24+02:00F_Bauer L_Hörl O_Feuchtmüller dichtungstechnik <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Oliver Feuchtmüller" itemprop="url" href="/person/1c014e7e621116a64efb771fe105ba611/author/0"><span itemprop="name">O. Feuchtmüller</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Lothar Hörl" itemprop="url" href="/person/1c014e7e621116a64efb771fe105ba611/author/1"><span itemprop="name">L. Hörl</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1c014e7e621116a64efb771fe105ba611/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">7th World Tribology Congress</span>, </em></span>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>717.</em></span>Wed Aug 03 09:40:24 CEST 20227th World Tribology Congress717On friction and surface energy in the tribological contact of rod seals2022F_Bauer L_Hörl O_Feuchtmüller dichtungstechnik EHL Simulation of Transient Friction of Translational Seals in Pneumatic Spool Valves under Con-sideration of 3D Surface Topography Measurement Datahttps://puma.ub.uni-stuttgart.de/bibtex/2434b55032fb715c4b65564a55a1415a1/ima-publima-publ2022-08-03T09:32:32+02:00F_Bauer K_Schmitz M_Baumann N_Bauer S_Feldmeth dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Niklas Bauer" itemprop="url" href="/person/19a0e3f49b2c1d6fbf95431ace51d8595/author/0"><span itemprop="name">N. Bauer</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/19a0e3f49b2c1d6fbf95431ace51d8595/author/1"><span itemprop="name">M. Baumann</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/19a0e3f49b2c1d6fbf95431ace51d8595/author/2"><span itemprop="name">S. Feldmeth</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/19a0e3f49b2c1d6fbf95431ace51d8595/author/3"><span itemprop="name">F. Bauer</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Katharina Schmitz" itemprop="url" href="/person/19a0e3f49b2c1d6fbf95431ace51d8595/author/4"><span itemprop="name">K. Schmitz</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">Conference Proceedings 13th International Fluid Power Conference</span>, </em></span><em>page <span itemprop="pagination">1002-1014</span>. </em>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>716 (peer-review).</em></span>Wed Aug 03 09:32:32 CEST 2022Conference Proceedings 13th International Fluid Power Conference716 (peer-review)1002-1014EHL Simulation of Transient Friction of Translational Seals in Pneumatic Spool Valves under Con-sideration of 3D Surface Topography Measurement Data2022F_Bauer K_Schmitz M_Baumann N_Bauer S_Feldmeth dichtungstechnik ima peer-review HOW DIFFERENT LUBRICANTS EFFECT THE WEAR OF RADIAL LIP SEALING SYSTEMShttps://puma.ub.uni-stuttgart.de/bibtex/2020a78b3fd613996d3a7cbf40341fd24/ima-publima-publ2022-06-23T16:26:33+02:00F_Bauer M_Baumann P_Fricker dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Philipp Fricker" itemprop="url" href="/person/13a0abf3860aa132be9be8c54a6edb66d/author/0"><span itemprop="name">P. Fricker</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/13a0abf3860aa132be9be8c54a6edb66d/author/1"><span itemprop="name">M. Baumann</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/13a0abf3860aa132be9be8c54a6edb66d/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">Proceedings M2D2022</span>, </em></span><em>page <span itemprop="pagination">1019-1030</span>. </em>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>711 (peer-review).</em></span>Thu Jun 23 16:26:33 CEST 2022Proceedings M2D2022711 (peer-review)1019-1030HOW DIFFERENT LUBRICANTS EFFECT THE WEAR OF RADIAL LIP SEALING SYSTEMS2022F_Bauer M_Baumann P_Fricker dichtungstechnik ima peer-review Modern lubricants (e.g. polyglycols, esters) cause problems when sealed with radial lip seals.
The wear of radial lip seals strongly depends on the wetting properties of the respective friction
partners. The paper shows, how these wetting characteristics correlate to the wear measured on
both, the radial lip seal and the shaft countersurface. Investigations were carried out using
polished 100Cr6 steel counter faces and FKM radial lip seals, together with ten chemically
different lubricants (two mineral oils, four polyglycols, two poly-α-olefins, one ester and one
silicone oil). The results show why some radial lip sealing systems are able to maintain their
function over the expected service life and others fail prematurely.Assessment of the lubricity of grease-sealing rotary shaft seals based on grease propertieshttps://puma.ub.uni-stuttgart.de/bibtex/2010fc58372883f8b5a8c2832e01019a5/ima-publima-publ2022-06-23T13:14:33+02:00F_Bauer S_Feldmeth S_Hahn dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Susanne Hahn" itemprop="url" href="/person/11dcbf9f7b8e5b87898b6fcb7c5956d8a/author/0"><span itemprop="name">S. Hahn</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/11dcbf9f7b8e5b87898b6fcb7c5956d8a/author/1"><span itemprop="name">S. Feldmeth</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/11dcbf9f7b8e5b87898b6fcb7c5956d8a/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">Conference Proceedings 13th International Fluid Power Conference</span>, </em></span><em>page <span itemprop="pagination">423-437</span>. </em>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>715 (peer-review).</em></span>Thu Jun 23 13:14:33 CEST 2022Conference Proceedings 13th International Fluid Power Conference715 (peer-review)423-437Assessment of the lubricity of grease-sealing rotary shaft seals based on grease properties2022F_Bauer S_Feldmeth S_Hahn dichtungstechnik ima peer-review How Wetting Properties Influence the Wear of Radial Lip Sealing Systemshttps://puma.ub.uni-stuttgart.de/bibtex/2fad09947ee7fcde073a5c7fd53740351/ima-publima-publ2022-06-23T13:03:24+02:00F_Bauer M_Baumann P_Fricker dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Philipp Fricker" itemprop="url" href="/person/14d1edf93476e0f407a801692189e9448/author/0"><span itemprop="name">P. Fricker</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/14d1edf93476e0f407a801692189e9448/author/1"><span itemprop="name">M. Baumann</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/14d1edf93476e0f407a801692189e9448/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">Conference Proceedings 13th International Fluid Power Conference</span>, </em></span><em>page <span itemprop="pagination">398-412</span>. </em>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>714 (peer-review).</em></span>Thu Jun 23 13:03:24 CEST 2022Conference Proceedings 13th International Fluid Power Conference714 (peer-review)398-412How Wetting Properties Influence the Wear of Radial Lip Sealing Systems2022F_Bauer M_Baumann P_Fricker dichtungstechnik ima peer-review An empirical study on the wear of reciprocating hydraulic rod seals using 15 different oilshttps://puma.ub.uni-stuttgart.de/bibtex/2257f66d61cec5d8291ccecfec565f604/ima-publima-publ2022-06-23T12:56:25+02:00F_Bauer L_Hörl O_Feuchtmüller dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Oliver Feuchtmüller" itemprop="url" href="/person/10d8645198b94fa4916c24b081827f771/author/0"><span itemprop="name">O. Feuchtmüller</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Lothar Hörl" itemprop="url" href="/person/10d8645198b94fa4916c24b081827f771/author/1"><span itemprop="name">L. Hörl</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/10d8645198b94fa4916c24b081827f771/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">Conference Proceedings 13th International Fluid Power Conference</span>, </em></span><em>page <span itemprop="pagination">373-384</span>. </em>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>713 (peer-review).</em></span>Thu Jun 23 12:56:25 CEST 2022Conference Proceedings 13th International Fluid Power Conference713 (peer-review)373-384An empirical study on the wear of reciprocating hydraulic rod seals using 15 different oils2022F_Bauer L_Hörl O_Feuchtmüller dichtungstechnik ima peer-review An experimental Study on the Temperature Dependent Fluid Film Generation of Rod Sealshttps://puma.ub.uni-stuttgart.de/bibtex/2132dd49e2eb92a1e22ef48eb7a1e1603/ima-publima-publ2022-06-23T12:47:42+02:00F_Bauer L_Hörl O_Feuchtmüller dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Oliver Feuchtmüller" itemprop="url" href="/person/1c3d54b298961da0947f1cfea68b5b828/author/0"><span itemprop="name">O. Feuchtmüller</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Lothar Hörl" itemprop="url" href="/person/1c3d54b298961da0947f1cfea68b5b828/author/1"><span itemprop="name">L. Hörl</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1c3d54b298961da0947f1cfea68b5b828/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">Proceedings M2D2022</span>, </em></span><em>page <span itemprop="pagination">347-356</span>. </em>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>709 (peer-review).</em></span>Thu Jun 23 12:47:42 CEST 2022Proceedings M2D2022709 (peer-review)347-356An experimental Study on the Temperature Dependent Fluid Film Generation of Rod Seals2022F_Bauer L_Hörl O_Feuchtmüller dichtungstechnik ima peer-review Friction of Rod Seals at Pre-Defined Thin Lubricant Films analyzed with a New Measurement Procedurehttps://puma.ub.uni-stuttgart.de/bibtex/2c64fb1555a36176b8fa0a60ba413f88a/ima-publima-publ2022-06-23T12:37:56+02:00F_Bauer L_Hörl O_Feuchtmüller dichtungstechnik ima <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Oliver Feuchtmüller" itemprop="url" href="/person/10b82484880950ec4e33a09b12e3c0371/author/0"><span itemprop="name">O. Feuchtmüller</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Lothar Hörl" itemprop="url" href="/person/10b82484880950ec4e33a09b12e3c0371/author/1"><span itemprop="name">L. Hörl</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/10b82484880950ec4e33a09b12e3c0371/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">76th STLE Annual Meeting & Exhibition</span>, </em></span>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>704.</em></span>Thu Jun 23 12:37:56 CEST 202276th STLE Annual Meeting & Exhibition704Friction of Rod Seals at Pre-Defined Thin Lubricant Films analyzed with a New Measurement Procedure2022F_Bauer L_Hörl O_Feuchtmüller dichtungstechnik ima Einfluss der Schmierstoffbenetzung auf die Funktion von Stangendichtungenhttps://puma.ub.uni-stuttgart.de/bibtex/27cac32e50e02c459a5b065b936aaf077/ima-publima-publ2022-06-23T12:30:29+02:00F_Bauer L_Hörl O_Feuchtmüller dichtungstechnik ima <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Oliver Feuchtmüller" itemprop="url" href="/person/1e87edfb4388655de4e5ac20e3a8c6817/author/0"><span itemprop="name">O. Feuchtmüller</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Lothar Hörl" itemprop="url" href="/person/1e87edfb4388655de4e5ac20e3a8c6817/author/1"><span itemprop="name">L. Hörl</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1e87edfb4388655de4e5ac20e3a8c6817/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><em><span itemprop="educationalUse">Abschlussbericht</span>, </em><em>Forschungsvorhaben Nr. 20105 N/1. </em><em><span itemprop="producer">VDMA</span>, </em><em>Frankfurt/Main, </em>(<em><span>2021<meta content="2021" itemprop="datePublished"/></span></em>)</span>Thu Jun 23 12:30:29 CEST 2022Frankfurt/Main676.2Forschungsvorhaben Nr. 20105 N/1Einfluss der Schmierstoffbenetzung auf die Funktion von StangendichtungenAbschlussbericht2021F_Bauer L_Hörl O_Feuchtmüller dichtungstechnik ima Approach to the Description of Macro Lead Formation by Means of a Kinematics Simulation Modelhttps://puma.ub.uni-stuttgart.de/bibtex/28e7fbe3e8860e18a3dc0aaea29c8b49f/ima-publima-publ2022-06-14T16:08:44+02:00F_Bauer G_Haffner M_Baumann S_Schmuker ZIM-Makrodrall dichtungstechnik from:georghaffner ima <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Georg Haffner" itemprop="url" href="/person/1436a28b0527f379692cb9ee479fe8e46/author/0"><span itemprop="name">G. Haffner</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/1436a28b0527f379692cb9ee479fe8e46/author/1"><span itemprop="name">M. Baumann</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Stefan Schmuker" itemprop="url" href="/person/1436a28b0527f379692cb9ee479fe8e46/author/2"><span itemprop="name">S. Schmuker</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1436a28b0527f379692cb9ee479fe8e46/author/3"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">76th STLE Annual Meeting & Exhibition</span>, </em></span>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>707.</em></span>Tue Jun 14 16:08:44 CEST 202276th STLE Annual Meeting & Exhibition707Approach to the Description of Macro Lead Formation by Means of a Kinematics Simulation Model2022F_Bauer G_Haffner M_Baumann S_Schmuker ZIM-Makrodrall dichtungstechnik from:georghaffner ima Computational Fluid Dynamics of the Lubricant Flow in the Sealing Gap of Rotary Shaft Sealshttps://puma.ub.uni-stuttgart.de/bibtex/22a7c179dd4f51b2793d8e917dccdf43f/ima-publima-publ2022-06-10T14:16:28+02:00F_Bauer J_Grün S_Feldmeth dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jeremias Grün" itemprop="url" href="/person/1ac358a0846c9feffaa923ba38b2fc6a0/author/0"><span itemprop="name">J. Grün</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/1ac358a0846c9feffaa923ba38b2fc6a0/author/1"><span itemprop="name">S. Feldmeth</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1ac358a0846c9feffaa923ba38b2fc6a0/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">Proceedings M2D2022</span>, </em></span><em>page <span itemprop="pagination">1035-1050</span>. </em>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>712 (peer-review).</em></span>Fri Jun 10 14:16:28 CEST 2022Proceedings M2D2022712 (peer-review)1035-1050Computational Fluid Dynamics of the Lubricant Flow in the Sealing Gap of Rotary Shaft Seals2022F_Bauer J_Grün S_Feldmeth dichtungstechnik ima peer-review The lubricant flow in the sealing gap significantly affects the sealing behavior of rotary shaft
seals. Computational fluid dynamics (CFD) are applied here to analyze these fluid flows. A
decisive input parameter is the sealing gap height respectively the lubricant film thickness. The
film thickness is estimated on the basis of several analytical elastohydrodynamic lubrication
(EHL) equations. The results for sealing characteristics such as the pumping rate and the friction
torque derived from the numerical analyses are compared and discussed with the results
obtained from test rig studies. This allows the validity of the applied methods to be verified.Back-Pumping Rate Measurement of Elastomeric Radial Lip Seals in Converse Installation: Basics, Wear Formation and Long-Term Testshttps://puma.ub.uni-stuttgart.de/bibtex/29a6bb2c9bcb27c85add4cf7c1391ec55/ima-publima-publ2022-06-10T14:07:10+02:00F_Bauer L_Merkle M_Baumann dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Lukas Merkle" itemprop="url" href="/person/1924f7ec5d02c5fc7181573f5776288ff/author/0"><span itemprop="name">L. Merkle</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/1924f7ec5d02c5fc7181573f5776288ff/author/1"><span itemprop="name">M. Baumann</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1924f7ec5d02c5fc7181573f5776288ff/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">Proceedings M2D2022</span>, </em></span><em>page <span itemprop="pagination">363-374</span>. </em>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>710 (peer-review).</em></span>Fri Jun 10 14:07:10 CEST 2022Proceedings M2D2022710 (peer-review)363-374Back-Pumping Rate Measurement of Elastomeric Radial Lip Seals in Converse Installation: Basics, Wear Formation and Long-Term Tests2022F_Bauer L_Merkle M_Baumann dichtungstechnik ima peer-review Radial lip seals are used in various sizes and designs to seal shaft interfaces. In contrast to other sealing systems, elastomeric radial lip seals have a back-pumping capability. Fluid is pumped under the sealing edge from the air side to the fluid side. The simplest method for measuring the back-pumping rate is the converse installation of the radial lip seal. This paper describes the current state of the art in back-pumping rate measurement. It shows the advantages over other methods and the limitations of the method. For the converse installation, there was always the assumption of hydrodynamic lubrication. This means there would be only minimal initial run in effects and no further wear. Current research work however, question this assumption. To analyze the wear formation during back-pumping rate measurements, various long-term tests were carried out. The resulting wear is compared with identical tests in normal installation. The sealing mechanism of radial lip seals: A numerical study of the tangential distortion of the sealing edge.https://puma.ub.uni-stuttgart.de/bibtex/2273399b914f8d2b05a530aad74f50d20/ima-publima-publ2022-06-10T13:31:38+02:00F_Bauer J_Grün S_Feldmeth dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jeremias Grün" itemprop="url" href="/person/1ea542de12a3926d9834a031828cb9682/author/0"><span itemprop="name">J. Grün</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/1ea542de12a3926d9834a031828cb9682/author/1"><span itemprop="name">S. Feldmeth</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1ea542de12a3926d9834a031828cb9682/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Tribology and Materials</span>, </em> </span>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>708 (peer-review).</em></span>Fri Jun 10 13:31:38 CEST 2022Tribology and Materials708 (peer-review)1The sealing mechanism of radial lip seals: A numerical study of the tangential distortion of the sealing edge.12022F_Bauer J_Grün S_Feldmeth dichtungstechnik ima peer-review The sealing behaviour of elastomeric radial lip seals is essentially affected by the sealing mechanism in the contact area between the sealing edge and the shaft surface. The relative motion between radial lip seal and shaft deforms the sealing edge tangentially in the circumferential direction. This mechanical deformation is considered essential for the sealing mechanism. In this study, a numerical approach is employed to simulate this deformation. A three-dimensional multiscale model serves this purpose. The radial lip seal geometry is described on the macro-scale. On the micro-scale, an artificial rough surface with a stochastic roughness distribution is applied to an ideal sealing edge surface. A new meshing algorithm is used to discretise different sealing edge surfaces and automatically generates structured hexahedral meshes of the sealing edges. Mesh transitions connect the resulting finely meshed sealing edge to the coarsely meshed global macro-scale mesh of the radial lip seal. The paper introduces the modelling method used to simulate the deformation of radial lip seals. Results are presented and discussed with reference to the sealing behaviour. This contributes to a better understanding of the sealing mechanism of radial lip seals.Modeling of Mixed Friction on Rotary Shaft Seals under Consideration of Real Measured Surface Datahttps://puma.ub.uni-stuttgart.de/bibtex/2afb80e0f9d845673a79c2ff59e1e23d6/ima-publima-publ2022-06-01T08:46:14+02:00F_Bauer J_Grün S_Feldmeth dichtungstechnik ima <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jeremias Grün" itemprop="url" href="/person/17ab83f02b4973debee09ad735e8c17ee/author/0"><span itemprop="name">J. Grün</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/17ab83f02b4973debee09ad735e8c17ee/author/1"><span itemprop="name">S. Feldmeth</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/17ab83f02b4973debee09ad735e8c17ee/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">76th STLE Annual Meeting & Exhibition</span>, </em></span>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>706.</em></span>Wed Jun 01 08:46:14 CEST 202276th STLE Annual Meeting & Exhibition706Modeling of Mixed Friction on Rotary Shaft Seals under Consideration of Real Measured Surface Data2022F_Bauer J_Grün S_Feldmeth dichtungstechnik ima Wear on Rotary Shaft Seals: Tribological Correlation Between Wear at Sealing Edge and Wear of Shafthttps://puma.ub.uni-stuttgart.de/bibtex/261ee17360df2f2a737371e5d70414633/ima-publima-publ2022-05-31T16:58:56+02:00F_Bauer L_Merkle M_Baumann dichtungstechnik ima <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Lukas Merkle" itemprop="url" href="/person/178245269ba7830955d57a0b65525a8a8/author/0"><span itemprop="name">L. Merkle</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/178245269ba7830955d57a0b65525a8a8/author/1"><span itemprop="name">M. Baumann</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/178245269ba7830955d57a0b65525a8a8/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">76th STLE Annual Meeting & Exhibition, Orlando, Florida (USA), 15.05-19.05.2022</span>, </em></span>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>705 (presentation).</em></span>Tue May 31 16:58:56 CEST 202276th STLE Annual Meeting & Exhibition, Orlando, Florida (USA), 15.05-19.05.2022705 (presentation)Wear on Rotary Shaft Seals: Tribological Correlation Between Wear at Sealing Edge and Wear of Shaft2022F_Bauer L_Merkle M_Baumann dichtungstechnik ima Elastomeric rotary shaft seals are a common seal type for automotive and industrial applications. The wear mechanism of these sealing systems is not fully understood and not predictable so far. If a lip seal fails, it causes high maintenance costs and environmental damage. In order to investigate the wear mechanism, an empirical test series is conducted with shaft seals on plunge ground shafts. Various tribological conditions are considered, including operating conditions relevant to practice. For a complete acquisition of the system condition, all shaft surfaces are measured 2- and 3-dimensional before and after the test runs. The wear of the sealing edges is evaluated with a recently developed laser line triangulation method on the complete circumference of the sealing rings. Results show large amounts of wear, depending significantly on the operating conditions. We discuss the wear mechanisms and the correlations of wear effects in the tribo contact area of the sealing system.Rheological Characterization and EHL Simulation of a Grease in a Lubricated Sealing Contacthttps://puma.ub.uni-stuttgart.de/bibtex/2ed93e5597c87962393e60bea85cf4b40/ima-publima-publ2022-04-20T14:45:10+02:00F_Bauer K_Schmitz N_Bauer Pneumatikreibung S_Feldmeth S_Hahn dichtungstechnik from:c_olbrich ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Niklas Bauer" itemprop="url" href="/person/108bf0209775cc26f44760a1d0c09448d/author/0"><span itemprop="name">N. Bauer</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Susanne Hahn" itemprop="url" href="/person/108bf0209775cc26f44760a1d0c09448d/author/1"><span itemprop="name">S. Hahn</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Simon Feldmeth" itemprop="url" href="/person/108bf0209775cc26f44760a1d0c09448d/author/2"><span itemprop="name">S. Feldmeth</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/108bf0209775cc26f44760a1d0c09448d/author/3"><span itemprop="name">F. Bauer</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Katharina Schmitz" itemprop="url" href="/person/108bf0209775cc26f44760a1d0c09448d/author/4"><span itemprop="name">K. Schmitz</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Tribologie und Schmierungstechnik</span>, </em> <em><span itemtype="http://schema.org/PublicationVolume" itemscope="itemscope" itemprop="isPartOf"><span itemprop="volumeNumber">68 </span></span>(<span itemprop="issueNumber">6</span>):
<span itemprop="pagination">20--28</span></em> </span>(<em><span>2021<meta content="2021" itemprop="datePublished"/></span></em>)<em>696 (peer-review).</em></span>Wed Apr 20 14:45:10 CEST 2022Tribologie und Schmierungstechnik696 (peer-review)620--28Rheological Characterization and EHL Simulation of a Grease in a Lubricated Sealing Contact682021F_Bauer K_Schmitz N_Bauer Pneumatikreibung S_Feldmeth S_Hahn dichtungstechnik from:c_olbrich ima peer-review Diese Arbeit gibt Einblicke in das tribologische Verhalten fettgeschmierter Kontakte in pneumatischen Schieberventilen. Aufgrund des stark nicht-newtonschen Fließverhaltend des Fettes wurden verschiedene rheologische Messungen durchgeführt, um die beiden Materialmodelle nach Herschel-Bulkley und Palacios-Palacios zu parametrieren. Diese beiden Materialmodelle wurden in eine EHD Simulation des Dichtkontakts integriert und für zwei Temperaturen qualitativ verglichen. Für das Dichtsystem ist die Reibkraft nahezu unabhängig von der Wahl des Materialmodells. Außerdem konnten mit einer newtonschen Näherung des Fließverhaltens qualitativ vergleichbare Reibkräfte mit etwa 10% Abweichung gegenüber den nicht-newtonschen Modellen erzielt werden.An Empirical Study on the Friction of Reciprocating Rod Seals at Predefined Lubrication Conditions and Shear Rateshttps://puma.ub.uni-stuttgart.de/bibtex/231837102a07b1397dd0129d68172f829/ima-publima-publ2022-04-20T09:05:04+02:00F_Bauer L_Hörl O_Feuchtmüller dichtungstechnik from:c_olbrich ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Oliver Feuchtmüller" itemprop="url" href="/person/169e12705f0c8c3e62ba439bd1537c0a5/author/0"><span itemprop="name">O. Feuchtmüller</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Lothar Hörl" itemprop="url" href="/person/169e12705f0c8c3e62ba439bd1537c0a5/author/1"><span itemprop="name">L. Hörl</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/169e12705f0c8c3e62ba439bd1537c0a5/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Lubricants</span>, </em> </span>(<em><span>2022<meta content="2022" itemprop="datePublished"/></span></em>)<em>703 (peer-review).</em></span>Wed Apr 20 09:05:04 CEST 2022Lubricants703 (peer-review)4An Empirical Study on the Friction of Reciprocating Rod Seals at Predefined Lubrication Conditions and Shear Rates102022F_Bauer L_Hörl O_Feuchtmüller dichtungstechnik from:c_olbrich ima peer-review A key factor influencing the friction of rod seals is a thin oil film, which is dragged into the sealing gap at outstroke and instroke. Accurate determination of oil film thickness in the sealing gap of rod seals is a challenging task since it is only in the range of a few nanometers. A novel measurement procedure to analyze the friction of common reciprocating sealing systems in direct relation to the shear rate and film thickness is introduced in this paper. Results from a first empirical study with film thicknesses in the range of a few nanometers and shear rates up to γ˙=107 s−1 were used to compare the friction of practically relevant polyurethane U-cups. The U-cups differ in their geometry and surface roughness. It is seen that even at such thin films, the measured friction of those seals can be approximated by Newtonian fluid friction (speed, film thickness, viscosity, contact area). In general, the novel measurement procedure is useful in a scientific and technical context, since it offers a new perspective on tribological mechanisms at thin film lubrication conditions.Opportunities and Applications for Artificial Intelligence in Sealing Technologyhttps://puma.ub.uni-stuttgart.de/bibtex/275a63d3df52f1bb8ba84dcdadc03f713/ima-publima-publ2022-02-21T17:47:32+01:00F_Bauer L_Merkle M_Baumann dichtungstechnik ima <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/12317ee84a94e143fb88887151e201fda/author/0"><span itemprop="name">M. Baumann</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Lukas Merkle" itemprop="url" href="/person/12317ee84a94e143fb88887151e201fda/author/1"><span itemprop="name">L. Merkle</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/12317ee84a94e143fb88887151e201fda/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">23rd International Colloquium Tribology</span>, </em></span><em>page <span itemprop="pagination">471-473</span>. </em><em>TAE Esslingen, </em><em><span itemprop="publisher">expert-Verlag</span>, </em>(<em><span>January 2022<meta content="January 2022" itemprop="datePublished"/></span></em>)<em>697.</em></span>Mon Feb 21 17:47:32 CET 202223rd International Colloquium Tribology1697471-473Opportunities and Applications for Artificial Intelligence in Sealing Technology2022F_Bauer L_Merkle M_Baumann dichtungstechnik ima Referenz-Radialwellendichtring Vorstudie für T1598 – Entwicklung eines FVA-Referenz-RWDR (analog FVA-Referenz-Öle)https://puma.ub.uni-stuttgart.de/bibtex/2d4db34c1a91daaaaf2d4cdda203fbbdc/ima-publima-publ2022-02-16T10:08:27+01:00F_Bauer J_Grün dichtungstechnik ima <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jeremias Grün" itemprop="url" href="/person/1bc6bc781b8e57acd12594bcbe1fbf369/author/0"><span itemprop="name">J. Grün</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/1bc6bc781b8e57acd12594bcbe1fbf369/author/1"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><em><span itemprop="educationalUse">Forschungsheft 1476</span>, </em><em>Abschlussbericht FVA Vorhaben Nr. 924 I. </em><em><span itemprop="producer">Forschungsvereinigung Antriebstechnik e.V.</span>, </em><em>Frankfurt am Main, </em>(<em><span>February 2022<meta content="February 2022" itemprop="datePublished"/></span></em>)</span>Wed Feb 16 10:08:27 CET 2022Frankfurt am Main 2702Abschlussbericht FVA Vorhaben Nr. 924 IReferenz-Radialwellendichtring Vorstudie für T1598 – Entwicklung eines FVA-Referenz-RWDR (analog FVA-Referenz-Öle)Forschungsheft 14762022F_Bauer J_Grün dichtungstechnik ima Bei einer Vielzahl von Forschungsprojekten konnten mutmaßlich schädliche Einflüsse auf Radial-
Wellendichtungen durch das Auftreten von Leckage nicht gezeigt werden. Eine quantitative Bewertung oder
gar die Ermittlung von Grenzwerten ist nicht möglich.
Das Fluidpumpvermögen eines Dichtsystems lässt sich über den Förderwert quantifizieren. Der
Systemförderwert setzt sich dabei aus dem Förderwertanteil des Radial-Wellendichtrings und dem der
Dichtungsgegenlauffläche zusammen. Häufig haben handelsübliche Radial-Wellendichtringe ein so starkes
Fluidpumpvermögen, dass schädliche Einflüsse kompensiert werde können. Ziel des gesamten Projektes
ist daher die Entwicklung eines Referenz-Radial-Wellendichtrings, dessen Fluidpumpvermögen gering aber
gleichzeitig stabil ist. Dadurch soll der Einfluss auf den Systemförderwert minimiert werden. Ziel dieser
Vorstudie ist ein schneller Erkenntnisgewinn und Wissenstransfer für das Gesamtprojekt.
Das Fluidpumpvermögen wird in diesem Projekt durch gezielte geometrische Veränderungen der
Querschnittsgeometrie beeinflusst. Dazu wurden Radial-Wellendichtringe aus zwei unterschiedlichen
Materialien mit insgesamt sieben unterschiedlich abgestochene fluidseitigen Flankenwinkeln untersucht.
In Geometrieanalysen konnte zunächst nachgewiesen werden, dass die vorgegeben geometrischen
Parameter umsetz- und herstellbar sind. Daraufhin konnte in Radialkraftanalysen ein Zusammenhang
zwischen der Geometrie der Dichtringe und der Radialkraft festgestellt werden. In
Förderwertuntersuchungen konnte mit keinem der untersuchten Dichtringe Förderneutralität erreicht
werden. Ferner konnte keine direkte Korrelation zwischen dem variierten fluidseitigen Flankenwinkel und
dem Förderwert festgestellt werden. Erklärungen hierfür liefern Strömungsanalysen und Simulationen.
Zusammenfassend lässt sich daraus schließen, dass für die Entwicklung eines förderneutralen Referenz-
Radial-Wellendichtrings weitere geometrische Parameter betrachtet werden müssen.
Das Ziel des Forschungsvorhabens wurde erreichtThree-dimensional structure-based approach for the analysis of macroscopic lead structures on sealing counterfaceshttps://puma.ub.uni-stuttgart.de/bibtex/21e1bc7bf1460a54744cbe196c1ce6ec5/ima-publima-publ2022-02-07T08:33:21+01:003D-Makrodrall F_Bauer M_Baumann M_Engelfried dichtungstechnik ima peer-review <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Maximilian Engelfried" itemprop="url" href="/person/15d61bb8116b9b61bb8f8f3ae2f669546/author/0"><span itemprop="name">M. Engelfried</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias Baumann" itemprop="url" href="/person/15d61bb8116b9b61bb8f8f3ae2f669546/author/1"><span itemprop="name">M. Baumann</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Frank Bauer" itemprop="url" href="/person/15d61bb8116b9b61bb8f8f3ae2f669546/author/2"><span itemprop="name">F. Bauer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">International Journal of Metrology and Quality Engineering</span>, </em> </span>(<em><span>February 2022<meta content="February 2022" itemprop="datePublished"/></span></em>)<em>701 (peer-review).</em></span>Mon Feb 07 08:33:21 CET 2022International Journal of Metrology and Quality Engineering2701 (peer-review)1-14Three-dimensional structure-based approach for the analysis of macroscopic lead structures on sealing counterfaces13-2/202220223D-Makrodrall F_Bauer M_Baumann M_Engelfried dichtungstechnik ima peer-review The seal failure of an elastomer rotary shaft seal is often caused due to lead on the shaft counterface. In sealing technology, the term ‘lead’ includes all structures on sealing counterfaces that are capable of transporting fluid in axial direction through the sealing contact and thus disrupting the sealing mechanism. Lead structures are created during the manufacturing process of the shaft surface or throughout the handling. They occur in various shapes and sizes. Depending on the characteristics of the lead structures, several specialized measurement and evaluation methods exist which have to be applied in combination. However, not all types of lead can be covered with the methods known so far. State of the art are frequency-based and model-based analysis methods, which are only able to detect periodic lead structures. Aperiodic and stochastically distributed lead structures cannot be detected due to the functional principle. This article provides an approach for a structure-based evaluation of macroscopic lead structures based on optical topography measurement data. This allows to detect all known types of macroscopic lead on the shaft surface and in future to measure microscopic and macroscopic lead with a single measurement procedure.