{ "types" : { "Bookmark" : { "pluralLabel" : "Bookmarks" }, "Publication" : { "pluralLabel" : "Publications" }, "GoldStandardPublication" : { "pluralLabel" : "GoldStandardPublications" }, "GoldStandardBookmark" : { "pluralLabel" : "GoldStandardBookmarks" }, "Tag" : { "pluralLabel" : "Tags" }, "User" : { "pluralLabel" : "Users" }, "Group" : { "pluralLabel" : "Groups" }, "Sphere" : { "pluralLabel" : "Spheres" } }, "properties" : { "count" : { "valueType" : "number" }, "date" : { "valueType" : "date" }, "changeDate" : { "valueType" : "date" }, "url" : { "valueType" : "url" }, "id" : { "valueType" : "url" }, "tags" : { "valueType" : "item" }, "user" : { "valueType" : "item" } }, "items" : [ { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2ca8cfbc31dda6713a594825900728812/isw-bibliothek", "tags" : [ "Algorithms","Interpolation","Manufacturing","Robots","Winding","isw","peer","rp14" ], "intraHash" : "ca8cfbc31dda6713a594825900728812", "interHash" : "ea2d3044e31c492f297ea94c474b8c9b", "label" : "Replication Data for: Cornuspline path planning algorithm for the fabrication of coreless wound fiber-polymer composite structures", "user" : "isw-bibliothek", "description" : "This dataset contains all the validation data that presented within the paper \"Cornuspline path planning algorithm for the fabrication of coreless wound fiber-polymer composite structures\". This paper presents a spline path planning algorithm based on clothoids. This algorithm considers both the process requirements and the dynamic characteristics of the manufacturing unit. Furthermore, the algorithm is validated on a test contour and compared with established commercial methods. The test contour is not based on a specific structural element as it is usually manufactured but combines individual hallenging manufacturing situations in a systematic approach. The result is a contour that contains both sharp and slight changes in the tangent angle. A simulated Beckhoff TwinCAT controller (v3.1 Build 4024.11) is used as a reference system. This is a commercial industrial controller that is equipped with a CNC kernel and can be flexibly used for motion control of robots or machine tools. To compare the Cornuspline (CS), two programs were created to control the NC. In the first variant (NC1), the set points for the path are emulated from established methods. In the second variant (NC2), the set points are exactly on the arc along the curve. In both NC variants, the set points were connected via a B-spline function. The dataset contains three files with the position data for CS, NC1 and NC2.", "date" : "2024-03-28 10:20:45", "changeDate" : "2024-03-28 10:20:45", "count" : 2, "pub-type": "dataset", "publisher":"DaRUS", "year": "2023", "url": "https://darus.uni-stuttgart.de/citation?persistentId=doi:10.18419/darus-3577", "author": [ "Timo König","Alexander Verl","Armin Lechler" ], "authors": [ {"first" : "Timo", "last" : "König"}, {"first" : "Alexander", "last" : "Verl"}, {"first" : "Armin", "last" : "Lechler"} ], "doi" : "10.18419/DARUS-3577", "bibtexKey": "https://doi.org/10.18419/darus-3577" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2da33bcb1cf51be2dd31953317379b853/isw-bibliothek", "tags" : [ "Algorithms","Interpolation","Manufacturing","Robots","Winding","isw","peer","rp14" ], "intraHash" : "da33bcb1cf51be2dd31953317379b853", "interHash" : "01f86c45260c3fac81e79d722df3c457", "label" : "Cornuspline Path Planning Algorithm for the Fabrication of Coreless Wound Fiber-Polymer Composite Structures", "user" : "isw-bibliothek", "description" : "", "date" : "2024-03-26 10:41:04", "changeDate" : "2024-03-26 10:47:21", "count" : 3, "pub-type": "inproceedings", "booktitle": "IECON 2023- 49th Annual Conference of the IEEE Industrial Electronics Society", "year": "2023", "url": "", "author": [ "Timo König","Alexander Verl","Armin Lechler" ], "authors": [ {"first" : "Timo", "last" : "König"}, {"first" : "Alexander", "last" : "Verl"}, {"first" : "Armin", "last" : "Lechler"} ], "pages": "1-6","abstract": "Industrial robots are now used in a wide range of manufacturing processes. The increasing demands on quality and the complexity of the processes cannot always be met by the range of functions that are available in numerical control systems. In the coreless winding of fiber-polymer composites, it is important to keep the roving tension as constant as possible while maintaining a high processing speed. Currently, the winding paths are programmed via a number of control points. This results in a trade-off between lower process properties and higher processing speed with fewer control points. Conversely, finer interpolation of the path can improve process characteristics at lower processing speeds. With interpolation methods that are adapted to the process, new possibilities open up to overcome these trade-offs. This paper presents a spline path planning algorithm based on clothoids. This algorithm considers both the process requirements and the dynamic characteristics of the manufacturing unit. Furthermore, the algorithm is validated on a test contour and compared with established commercial methods.", "issn" : "2577-1647", "doi" : "10.1109/IECON51785.2023.10312385", "bibtexKey": "10312385" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/250eb44f91950357cf988eb9394027e14/carsten.scherer", "tags" : [ "algorithms","bilinear","control","design","dynamic","feasibility","formulas","global","h-2","h-infinity","imng","inequalities","linear-systems","lmis","matrix","multiobjective","optimization","order","output-feedback","parameter","peerReviewed","robust","structured","synthesis","uncertainty" ], "intraHash" : "50eb44f91950357cf988eb9394027e14", "interHash" : "79b43995f394ecc9dbf6ddc0aa390ca5", "label" : "Robust output-feedback controller design via local BMI optimization", "user" : "carsten.scherer", "description" : "", "date" : "2021-12-07 20:40:52", "changeDate" : "2021-12-07 19:40:52", "count" : 4, "pub-type": "article", "journal": "Automatica", "year": "2004", "url": "https://doi.org/10.1016/j.automatica.2004.01.028", "author": [ "S. Kanev","C. W. Scherer","M. Verhaegen","B. De Schutter" ], "authors": [ {"first" : "S.", "last" : "Kanev"}, {"first" : "C. W.", "last" : "Scherer"}, {"first" : "M.", "last" : "Verhaegen"}, {"first" : "B.", "last" : "De Schutter"} ], "volume": "40","number": "7","pages": "1115-1127","abstract": "The problem of designing a globally optimal full-order output-feedback controller for polytopic uncertain systems is known to be a non-convex NP-hard optimization problem, that can be represented as a bilinear matrix inequality optimization problem for most design objectives. In this paper a new approach is proposed to the design of locally optimal controllers. It is iterative by nature, and starting from any initial feasible controller it performs local optimization over a suitably defined non-convex function at each iteration. The approach features the properties of computational efficiency, guaranteed convergence to a local optimum, and applicability to a very wide range of problems. Furthermore, a fast (but conservative) LMI-based procedure for computing an initially feasible controller is also presented. The complete approach is demonstrated on a model of one joint of a real-life space robotic manipulator. (C) 2004 Elsevier Ltd. All rights reserved.", "shorttitle" : "Robust output-feedback controller design via local BMI optimization", "file" : "://000221904200002", "issn" : "0005-1098", "endnotereftype" : "Journal Article", "bibtexKey": "KanSch04a" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/250eb44f91950357cf988eb9394027e14/mathematik", "tags" : [ "robust","multiobjective","synthesis","control","imng","feasibility","bilinear","h-infinity","inequalities","algorithms","formulas","linear-systems","global","h-2","matrix","uncertainty","output-feedback","from:carsten.scherer","design","optimization","parameter","peerReviewed","lmis","structured","dynamic","order" ], "intraHash" : "50eb44f91950357cf988eb9394027e14", "interHash" : "79b43995f394ecc9dbf6ddc0aa390ca5", "label" : "Robust output-feedback controller design via local BMI optimization", "user" : "mathematik", "description" : "", "date" : "2021-12-01 21:53:35", "changeDate" : "2024-03-12 10:23:32", "count" : 4, "pub-type": "article", "journal": "Automatica", "year": "2004", "url": "https://doi.org/10.1016/j.automatica.2004.01.028", "author": [ "S. Kanev","C. W. Scherer","M. Verhaegen","B. De Schutter" ], "authors": [ {"first" : "S.", "last" : "Kanev"}, {"first" : "C. W.", "last" : "Scherer"}, {"first" : "M.", "last" : "Verhaegen"}, {"first" : "B.", "last" : "De Schutter"} ], "volume": "40","number": "7","pages": "1115-1127","abstract": "The problem of designing a globally optimal full-order output-feedback controller for polytopic uncertain systems is known to be a non-convex NP-hard optimization problem, that can be represented as a bilinear matrix inequality optimization problem for most design objectives. In this paper a new approach is proposed to the design of locally optimal controllers. It is iterative by nature, and starting from any initial feasible controller it performs local optimization over a suitably defined non-convex function at each iteration. The approach features the properties of computational efficiency, guaranteed convergence to a local optimum, and applicability to a very wide range of problems. Furthermore, a fast (but conservative) LMI-based procedure for computing an initially feasible controller is also presented. The complete approach is demonstrated on a model of one joint of a real-life space robotic manipulator. (C) 2004 Elsevier Ltd. All rights reserved.", "shorttitle" : "Robust output-feedback controller design via local BMI optimization", "file" : "://000221904200002", "issn" : "0005-1098", "endnotereftype" : "Journal Article", "bibtexKey": "KanSch04a" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2c0ec7726693cdc1e54e46a3ff62159f6/cordula_kropp", "tags" : [ "algorithms","city","digitization","myown","sowi5,","zirius," ], "intraHash" : "c0ec7726693cdc1e54e46a3ff62159f6", "interHash" : "1da7df585b5a1768c95dcf290a71c12e", "label" : "Intelligente Städte: Rationalität, Einfluss und Legitimation von Algorithmen", "user" : "cordula_kropp", "description" : "", "date" : "2021-04-15 10:11:06", "changeDate" : "2021-06-25 16:11:44", "count" : 1, "pub-type": "incollection", "booktitle": "Smart City. Kritische Perspektiven auf die Digitalisierung der Städte","publisher":"transcript","address":"Bielefeld", "year": "2018", "url": "", "author": [ "Cordula Kropp" ], "authors": [ {"first" : "Cordula", "last" : "Kropp"} ], "editor": [ "Sybille Bauriedl","Anke Strüver" ], "editors": [ {"first" : "Sybille", "last" : "Bauriedl"}, {"first" : "Anke", "last" : "Strüver"} ], "pages": "33-42", "isbn" : "978-3-8376-4336-7", "bibtexKey": "kropphenkelannaintelligente" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2e62776fb14cdcdf9ce6419573825aed5/brittalenz", "tags" : [ "Fault","Numerical","Parallel","Resiliencesend:unibiblio","algorithms","architecture","cmcs","computer","ians","tolerance" ], "intraHash" : "e62776fb14cdcdf9ce6419573825aed5", "interHash" : "92793729ee7468c2168cb81b0ca42520", "label" : "Resiliency in Numerical Algorithm Design for Extreme Scale Simulations (Dagstuhl Seminar 20101)", "user" : "brittalenz", "description" : "", "date" : "2021-01-11 13:52:20", "changeDate" : "2021-04-15 09:57:16", "count" : 2, "pub-type": "article", "journal": "Dagstuhl Reports","publisher":"Schloss Dagstuhl--Leibniz-Zentrum für Informatik","address":"Dagstuhl, Germany", "year": "2020", "url": "https://drops.dagstuhl.de/opus/volltexte/2020/13429", "author": [ "Luc Giraud","Ulrich Rüde","Linda Stals" ], "authors": [ {"first" : "Luc", "last" : "Giraud"}, {"first" : "Ulrich", "last" : "Rüde"}, {"first" : "Linda", "last" : "Stals"} ], "editor": [ "Luc Giraud","Ulrich Rüde","Linda Stals" ], "editors": [ {"first" : "Luc", "last" : "Giraud"}, {"first" : "Ulrich", "last" : "Rüde"}, {"first" : "Linda", "last" : "Stals"} ], "volume": "10","number": "3","pages": "1--57", "urn" : "urn:nbn:de:0030-drops-134290", "issn" : "2192-5283", "doi" : "10.4230/DagRep.10.3.1", "bibtexKey": "giraud_et_al:DR:2020:13429" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/24e004b357644fb2726a33e94f7b9c312/annettegugel", "tags" : [ "Acoustic","PD","algorithms","approach","direct","equations","iterative","localization","measurements","non-linear","observation","online","pseudo-time","solution","solver","strategies","time-differences" ], "intraHash" : "4e004b357644fb2726a33e94f7b9c312", "interHash" : "92f5da3aea1319b1a76568f9e1133e77", "label" : "All-Acoustic PD measurements of oil/paper-insulated transformers for PD-localization", "user" : "annettegugel", "description" : "", "date" : "2020-08-11 13:06:43", "changeDate" : "2020-08-11 11:06:43", "count" : 1, "pub-type": "proceedings", "year": "2004", "url": "https://www.ieh.uni-stuttgart.de/dokumente/publikationen/2004_APTADM_Markalous.pdf", "author": [ "Sacha M. Markalous","Kurt Feser" ], "authors": [ {"first" : "Sacha M.", "last" : "Markalous"}, {"first" : "Kurt", "last" : "Feser"} ], "eventtitle" : "APTADM 2004", "venue" : "Wroclaw, Poland", "eventdate" : "September 15-17", "bibtexKey": "markalous2004allacoustic" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2cd5b8bc5de59dd7bd758f65ccd7b117f/annettegugel", "tags" : [ "PD-localization","acoustic","algorithms","non-iterative","oil/paper-insulated","transformers" ], "intraHash" : "cd5b8bc5de59dd7bd758f65ccd7b117f", "interHash" : "def484a20a67f87e6e456c08f8e9eaab", "label" : "New robust non-iterative algorithms for acoustic PD-localization in oil/paper-insulated transformers", "user" : "annettegugel", "description" : "", "date" : "2020-07-23 14:31:24", "changeDate" : "2020-07-23 12:31:24", "count" : 1, "pub-type": "conference", "year": "2005", "url": "https://www.ieh.uni-stuttgart.de/dokumente/publikationen/2005_ISH_Markalous_Acoustic_Localization_Algorithms.pdf", "author": [ "Sacha Markalous","Stefan Tenbohlen","Kurt Feser" ], "authors": [ {"first" : "Sacha", "last" : "Markalous"}, {"first" : "Stefan", "last" : "Tenbohlen"}, {"first" : "Kurt", "last" : "Feser"} ], "eventtitle" : "14th International Symposium on High Voltage Engineering", "venue" : "Beijing, China", "eventdate" : "August 25-29", "bibtexKey": "markalous2005robust" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/20542ef3cc1fb7954cf65458338d6b8f8/annettegugel", "tags" : [ "Algorithms","Assessment","FRA" ], "intraHash" : "0542ef3cc1fb7954cf65458338d6b8f8", "interHash" : "28af78428b9e8122f195f32c72b94b3d", "label" : "A new Approach of FRA Assessment with Algorithms", "user" : "annettegugel", "description" : "", "date" : "2020-07-14 15:40:50", "changeDate" : "2020-07-14 13:40:50", "count" : 1, "pub-type": "conference", "year": "2007", "url": "", "author": [ "René Wimmer","Stefan Tenbohlen","Kurt Feser","Alexander Kraetge","Michael Krüger","Jochen Christian" ], "authors": [ {"first" : "René", "last" : "Wimmer"}, {"first" : "Stefan", "last" : "Tenbohlen"}, {"first" : "Kurt", "last" : "Feser"}, {"first" : "Alexander", "last" : "Kraetge"}, {"first" : "Michael", "last" : "Krüger"}, {"first" : "Jochen", "last" : "Christian"} ], "eventtitle" : "Cigré SC A2 & D1- Colloquium", "venue" : "Bruges, Belgium", "eventdate" : "October 7-12", "bibtexKey": "wimmer2007approach" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2cdda7e69404196fa2603ed0ba9ffe27d/michaelbeltle", "tags" : [ "Discharge","Partial","Teilentladung","algorithms","classification" ], "intraHash" : "cdda7e69404196fa2603ed0ba9ffe27d", "interHash" : "548d756958f1da689917d584742b79e5", "label" : "Klassifikation von TE-Messungen unter Ausnutzung des vollständigen Informationsgehalts", "user" : "michaelbeltle", "description" : "", "date" : "2019-01-25 14:20:58", "changeDate" : "2019-01-25 13:20:58", "count" : 2, "pub-type": "conference", "year": "2018", "url": "", "author": [ "Benjamin Adam","Michael Beltle","Stefan Tenbohlen" ], "authors": [ {"first" : "Benjamin", "last" : "Adam"}, {"first" : "Michael", "last" : "Beltle"}, {"first" : "Stefan", "last" : "Tenbohlen"} ], "abstract": "Werden zur Klassifikation von Teilentladungen (TE) Diagramme wie das phase resolved partial discharge diagram (PRPD) oder die Pulse Sequenz Analyse (PSA) benutzt, so enthalten diese nie den vollen Informationsgehalt der Mes-sung. Beim PRPD wird die Zeitinformation, beim PSA die Phaseninformation ignoriert. Für eine Bewertung durch menschliche Experten ist dies von Vorteil, da die Menge an Informationen so beherrscht werden kann. Computerge-stützte Systeme sind auf diese Reduktion und Abstraktion der Informationen nicht angewiesen. In dieser Arbeit wird ein neues Verfahren vorgestellt, mit dem gemessene Teilentladungen direkt klassifiziert werden können. Dabei werden di-rekt die von TE-Messgerät gelieferten Daten ohne Vorverarbeitung genutzt. Das Messgerät liefert die Daten in Form einer sequenziellen Liste mit der Zeit-, Ladungs- und Phaseninformation für jeden gemessenen Impuls. Um diese Art von Daten zu klassifizieren kommt ein neuronales Netz in Form von Long Short-Term Memory zum Einsatz. Bei einem Datensatz von künstlichen, im Labor aufgenommenen TE-Messungen erreicht dieser Klassifikator eine Genauigkeit von 99,9%.Abstract If PRPD or PSA diagrams are used for classification of partial discharge (PD), they never contain the full information content of the measurement data. The PRPD ignores the time information and the PSA ignores the phase information. For evaluation by human experts this is advantageous, because the vast amount of information has to be limited for hu-man use. Computer-based systems are not reliant on this kind of reduction and abstraction of the information. In this work, a new technique for direct classification of partial discharges is presented. For this method, the data provided by the PD measurement system is used directly without pre-processing or reduction. The measurement system provides the data in form of a sequential list with time-, charge- and phase-information for each measured impulse. To classify this kind of data, a long short-term memory neural network is used. For a dataset of artificial PD-measurements, recorded in the laboratory, this classifier achieves an accuracy of 99.9%", "eventtitle" : "VDE-Hochspannungstechnik", "venue" : "Berlin", "eventdate" : "12.-14. November", "bibtexKey": "adam2018klassifikation" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/28c494972705666f29df6c2d8f9c80392/isw-bibliothek", "tags" : [ "Learning","Milling","Neural","Process","Support","algorithms","machines","myown","network","stability","vector","xfh","xlr","xvl" ], "intraHash" : "8c494972705666f29df6c2d8f9c80392", "interHash" : "8f7522f978b23c86bce7a9d182e5dae6", "label" : "Estimation of stability lobe diagrams in milling with continuous learning algorithms", "user" : "isw-bibliothek", "description" : "", "date" : "2016-03-21 15:25:16", "changeDate" : "2016-03-29 15:33:36", "count" : 1, "pub-type": "article", "journal": "Robotics and Computer-Integrated Manufacturing", "year": "2015", "url": "http://www.sciencedirect.com/science/article/pii/S0736584515001155", "author": [ "Jens Friedrich","Christoph Hinze","Anton Renner","Alexander Verl","Armin Lechler" ], "authors": [ {"first" : "Jens", "last" : "Friedrich"}, {"first" : "Christoph", "last" : "Hinze"}, {"first" : "Anton", "last" : "Renner"}, {"first" : "Alexander", "last" : "Verl"}, {"first" : "Armin", "last" : "Lechler"} ], "pages": "-","abstract": "Abstract The productivity of milling processes is limited by the occurrence of chatter vibrations. The correlation of the maximum stable cutting depth and the spindle speed can be shown in a stability lobe diagram (SLD). The stability is different for different width of cut and can change with the axis positions. Today it is already a great effort to estimate the \\SLD\\ only for one position. Many experiments are necessary to measure the \\SLD\\ or derive a detailed mathematical model to calculate the SLD. Moreover not only the cutting depth, but also the cutting width should be represented in the SLD. This paper presents a new approach to assess the process stability based on measured acceleration signals. The multidimensional stability lobe diagram (MSLD) are derived during the production using two new continuously learning algorithms. In this paper the application of a continuous learning support vector machine and a continuous neural network is shown. The support vector machine and the neural network are extended to make them capable for continuous learning and time-variant systems. A new trust criterion is introduced, which gives information about the prediction quality of the output for the selected input region. The learned \\MSLDs\\ are evaluated against analytically calculated \\MSLDs\\ and the learning algorithms can reproduce the analytical results very well.", "issn" : "0736-5845", "doi" : "http://dx.doi.org/10.1016/j.rcim.2015.10.003", "bibtexKey": "Friedrich2015" } ] }