%0 Generic %1 dakov2018multiscale %A Dakov, Nino %A Stoll, Mario %A Hörl, Lothar %A Feldmeth, Simon %A Bauer, Frank %B Fluid Sealing 2018 %D 2018 %E Group, BHR %I BHR Group %K F_Bauer M_Stoll N_Dakov S_Feldmeth b3s dichtungstechnik ehl from:m_stoll from:samuelschwamm from:thomasherzig myown peer-review %P 161-185 %T Multiscale Simulation of a Novel Lip Seal Design %X Lip seals made of PTFE compound show very high thermal and chemical stability. Dynamic sealing aids are often added on the sealing lip in the contact zone with the shaft to guarantee dynamic leak-tightness. The dynamic behaviour of different sealing aids can be analysed by simulating the fluid-structure-interaction of PTFE lip seal, shaft and lubricant in the sealing contact. This paper introduces a multiscale simulation approach for the analysis of the static and dynamic leak-tightness of PTFE lip seals with a novel sealing aid design. The multiscale approach consists of a macroscale, mesoscale and microscale. A nonlinear structural finite element analysis of the mounting of the seal on the shaft is introduced on the macroscale. The material law is elastic plastic with a combined hardening rule. The contact stress and contact geometry obtained by the finiteelement analysis are used as an input for an elastohydrodynamic lubrication (EHL) analysis on the meso- and microscale. In the elastohydrodynamic lubrication analysis the hydrodynamic pressure and the hydrodynamic gap height between the seal and the shaft are simulated. Furthermore, characteristic performance quantities of the sealing system such as the pumping rate and friction torque are calculated. Experimental measurements are also presented in order to validate the simulation results. Thus, the potential of the validated multiscale analysis method for the topological optimisation of the lip seal design is shown. %@ 978-1-85598-1638

@conference{dakov2018multiscale, abstract = {Lip seals made of PTFE compound show very high thermal and chemical stability. Dynamic sealing aids are often added on the sealing lip in the contact zone with the shaft to guarantee dynamic leak-tightness. The dynamic behaviour of different sealing aids can be analysed by simulating the fluid-structure-interaction of PTFE lip seal, shaft and lubricant in the sealing contact. This paper introduces a multiscale simulation approach for the analysis of the static and dynamic leak-tightness of PTFE lip seals with a novel sealing aid design. The multiscale approach consists of a macroscale, mesoscale and microscale. A nonlinear structural finite element analysis of the mounting of the seal on the shaft is introduced on the macroscale. The material law is elastic plastic with a combined hardening rule. The contact stress and contact geometry obtained by the finiteelement analysis are used as an input for an elastohydrodynamic lubrication (EHL) analysis on the meso- and microscale. In the elastohydrodynamic lubrication analysis the hydrodynamic pressure and the hydrodynamic gap height between the seal and the shaft are simulated. Furthermore, characteristic performance quantities of the sealing system such as the pumping rate and friction torque are calculated. Experimental measurements are also presented in order to validate the simulation results. Thus, the potential of the validated multiscale analysis method for the topological optimisation of the lip seal design is shown.}, added-at = {2021-03-25T17:56:16.000+0100}, author = {Dakov, Nino and Stoll, Mario and Hörl, Lothar and Feldmeth, Simon and Bauer, Frank}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/29aa7f374f453e5ebd2f63c46167ad7ee/ima-publ}, booktitle = {Fluid Sealing 2018}, editor = {Group, BHR}, eventdate = {7.-8. March 2018}, eventtitle = {24th International Conference on Fluid Sealing}, interhash = {b1f3abffdf1935b45d8f0346ab64f2cb}, intrahash = {9aa7f374f453e5ebd2f63c46167ad7ee}, isbn = {978-1-85598-1638}, keywords = {F_Bauer M_Stoll N_Dakov S_Feldmeth b3s dichtungstechnik ehl from:m_stoll from:samuelschwamm from:thomasherzig myown peer-review}, language = {eng}, month = {März}, note = {638 (peer-review)}, organization = {BHR Group}, pages = {161-185}, publisher = {BHR Group}, timestamp = {2021-10-05T14:34:09.000+0200}, title = {Multiscale Simulation of a Novel Lip Seal Design}, venue = {Manchester}, year = 2018 }