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Mahboob, Atif; Husung, Stephan; Weber, Christian; Liebal, Andreas; Krömker, Heidi;
The reuse of SysML behaviour models for creating product use cases in virtual reality. - In: Proceedings of the Design Society. - Cambridge : Cambridge University Press, ISSN 2220-4342, Bd. 1 (2019), 1, S. 2021-2030

An early evaluation of a product along with the consideration of life phase specific actor(s) and environment(s) can help greatly to gain an understanding of the product's behaviour and interactions. Virtual Reality (VR) can help designers to examine later life situations of a product by means of use case scenarios. However, preparing a VR-scene is still a time-consuming and cumbersome task. A model based approach that uses behaviour models of SysML to describe a VR-scene can reduce the preparation efforts. Such an approach is helpful if it allows the reuse of already described VR-scenes or their contents. This paper talks about the reusability of SysML behaviour models that constitute a VR-scene. This reusability can only be achieved by the generic definition of model interfaces. Therefore, a new modelling approach is presented to facilitate the reuse of SysML behaviour models to form different use cases of a product in VR. This approach also talks about the interface definitions and the management of variants of SysML models. The presented approach is elaborated by an example model that contains variants and uses instances to build different use cases.



https://doi.org/10.1017/dsi.2019.208
Artelt, Benedikt; Brix, Torsten; Döring, Ulf;
THEDI - the first online editor for the IFToMM dictionary. - In: Advances in mechanism and machine science. - Cham : Springer, (2019), S. 3511-3519

Döring, Ulf; Brix, Torsten; Artelt, Benedikt; Brandt-Salloum, Christiane;
Patents from the age of Prussian industrialization revived. - In: Advances in mechanism and machine science. - Cham : Springer, (2019), S. 1223-1232

Linß, Sebastian; Gräser, Philipp; Henning, Stefan; Harfensteller, Felix; Theska, René; Zentner, Lena;
Synthesis method for compliant mechanisms of high-precision and large-stroke by use of individually shaped power function flexure hinges. - In: Advances in mechanism and machine science. - Cham : Springer, (2019), S. 1569-1578

Harfensteller, Felix; Linß, Sebastian; Gräser, Philipp; Weber, Christian; Zentner, Lena; Theska, René;
Optimization-based approach to the embodiment design of compliant mechanisms with different flexure hinges. - In: Advances in mechanism and machine science. - Cham : Springer, (2019), S. 1579-1588

Theska, René; Zentner, Lena; Fröhlich, Thomas; Weber, Christian; Manske, Eberhard; Linß, Sebastian; Gräser, Philipp; Harfensteller, Felix; Darnieder, Maximilian; Kühnel, Michael;
Compliant mechanisms for ultra-precise applications. - In: Interdisciplinary applications of kinematics. - Cham : Springer, (2019), S. 249-256

This paper reports about enhanced compliant mechanisms with flexure hinge based on new analytic and/or FEM models that have been manufactured by state of the art wire EDM technology. Experimental proofs at test benches, equipped with ultra-precise interferometer based length and angular measurement systems, show first time the residual deviation to the intended path of motion with a resolution of nanometers/arc seconds. Theoretically determined and measured data are in good correlation. Repeatability limitations are rather more given by the residual noise of the overall test arrangement and mainly not by the mechanism itself.



Mahboob, Atif; Husung, Stephan; Weber, Christian; Liebal, Andreas; Krömker, Heidi;
An approach for building product use-case scenarios in different virtual reality systems. - In: ASME digital collection. - New York, NY : ASME, (2018), DETC2018-85223, V01BT02A047, 9 pages

During the product development process, it is of great importance to consider the later life phase situations of a product. This includes the interaction of the product with its environment and the human actor(s) in its different life phases. Therefore, an early evaluation of a product and its later life phase interactions are of great value. Virtual Reality (VR) technology is seen as very important at this point, as it can help the designer to realize the later life phase situations of a product inside VR. However, the preparation of VR-scenes remains a difficult task, as it requires a great amount of time and effort. Furthermore, the current methods for the preparation of such scenes offer very limited reusability. This paper will focus on an existing method that uses Model Based Systems Engineering (MBSE) to describe the VR-scene for a CAVE-type VR-system. This method will be further extended and an improvement to the existing modeling approach will be presented to achieve a faster simulation in VR and reusability of VR-scenes. Furthermore, a detailed comparison of the conventional and the new approach will be presented. The new approach enables a faster simulation that will be validated by comparing the execution speed of both approaches under the modeling approach section. The reusability perspective of the prepared VR-scene will also be discussed. A Head Mounted Display (HMD), in comparison with CAVE type VR-systems, offers a cost reduction in the use of VR technology. This paper will also provide the idea for achieving a simulation in HMD while using the same MBSE-approach used for CAVE type VR-systems. The flow of information for simulation in HMD and the idea of implementation will be presented in detail.



https://doi.org/10.1115/DETC2018-85223
Chilian, Gunhild; Höhne, Günter; Sperlich, Horst;
Entwerfen und Gestalten von Konstruktionselementen. - In: Konstruktionselemente der Feinmechanik. - München : Hanser, (2018), S. 9-51

Vajna, Sándor; Weber, Christian; Zeman, Klaus; Hehenberger, Peter; Gerhard, Detlef; Wartzack, Sandro;
CAx für Ingenieure : Eine praxisbezogene Einführung
3., vollständig neu bearbeitete Auflage. - Berlin, Heidelberg : Springer Vieweg, 2018. - Online-Ressource (VII, 655 S. 304 Abb, online resource). . - (SpringerLink) ISBN 978-3-662-54624-6

Dieses nun in der dritten Auflage erschienene Buch vermittelt die Grundlagen des systematischen Einsatzes von rechnerunterstützten Methoden, Vorgehensweisen und Werkzeugen in der Produktentstehung. Es bietet seinen Zielgruppen in knapper und übersichtlicher Form das Rüstzeug für die erfolgreiche Anwendung von CAx-Systemen. Vorgehensweisen und Beispiele basieren auf Erfahrungen in Industrie und Hochschulpraxis, wo sie ihre Effizienz bewiesen haben. Die 3. Auflage wurde gründlich überarbeitet, der Kreis der Autoren erweitert. So kamen nicht nur Aspekte unterschiedlicher Modellierungsarten, Mechatronik und Wissensverarbeitung hinzu, sondern auch Ausführungen zu Systembegriff und Modellaufbau (diese bilden die Basis für CAx-Anwendungen). Sie alle beeinflussen immer stärker die Fertigungstechnik und den modernen Fahrzeug-, Maschinen- und Anlagenbau und sie spannen den Bogen zur Systemtechnik. Neben dem aktuellen und zukünftigen Leistungsstand von CAx-Systemen wurden auch Richtlinien und Empfehlungen zum Stand der Technik berücksichtigt. Zielgruppen Das Buch eignet sich für Studierende der Ingenieurwissenschaften, für Fachleute in Unternehmen sowie für Führungskräfte, die über Einsatz und Ausbau von CAx-Anwendungen entscheiden.  Universitätsprofessor Dr.-Ing. Dr. h.c. Sandor Vajna, Otto-von-Guericke-Universität Magdeburg, Lehrstuhl für Maschinenbauinformatik Universitätsprofessor Dr.-Ing. Christian Weber, Technische Universität Ilmenau, Fachgebiet Konstruktionstechnik Universitätsprofessor DI. Dr. Klaus Zeman, Johannes-Kepler-Universität Linz, Institut für Rechnergestützte Methoden im Maschinenbau Privatdozent Dipl.-Ing. Dr. Peter Hehenberger, Fachhochschule Oberösterreich/Wels, Professur für Integrierte Entwicklung im Maschinenbau Universitätsprofessor Dipl.-Ing. Dr.-Ing. Detlef Gerhard, Technische Universität Wien, Institut für Konstruktionswissenschaften und Technische Logistik Universitätsprofessor Dr.-Ing. Sandro Wartzack, Friedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Konstruktionstechnik



http://dx.doi.org/10.1007/978-3-662-54624-6
Nagel, Thomas; Lienig, Jens; Bönisch, Iris; Reifegerste, Frank; Chilian, Gunhild; König, Heidi;
Technisches Zeichnen : Grundwissen für Studenten der Elektronik, Elektrotechnik, Feinwerktechnik und Mechatronik : Anhang. - In: Grundlagen der Konstruktion. - München : Hanser, (2018), S. 267-315