At the Institute of Vehicle Systems Engineering and the Institute of Design and CA Technologies, alongside practical teaching—primarily for the Mechanical Engineering and Automotive Engineering degree programmes—application-oriented research is also carried out. In addition to numerous test benches (including a wind tunnel), 3D simulations are carried out using various software packages in fluid mechanics and structural mechanics (crash and occupant simulation). Furthermore, issues relating to multi-body simulation and thermodynamic cycle simulation are addressed. The Institute of Computer Science focuses on the automated safety and reliability analysis of vehicles, in particular through the development of its own modelling language.
Project manager: Prof. Dr. Rüdiger Lunde
Project duration: 23.06.2014 - 23.06.2017
Project description:
The central aim of the research project is to advance the automated safety and reliability analysis of technical systems. While today, component-oriented simulation techniques are used to predict the intended system behavior, which automatically obtain behavioral knowledge about the planned system from the behavioral knowledge of the installed components stored in libraries, investigations into possible system malfunctions are still mainly carried out manually. However, these procedures have long since reached their limits as systems become increasingly complex due to increasing networking and growing software components. A central challenge in the automation of safety and reliability analyses is the correct choice of abstraction levels under which the system is viewed. Over the past 20 years, a wide range of representation formalisms and inference methods have been developed. They can be roughly divided into the categories of Failure Logic Modeling (pure fault and fault propagation modeling at a high level of abstraction) and Failure Injection (enrichment of a physical model with descriptions of fault states at a low level of abstraction). Another distinguishing criterion for component-oriented modeling approaches is the type of connection modeling: directed (e.g. Simulink) and undirected (e.g. Simscape).
Specifically, this project develops and tests a modeling formalism that considers components as finite automata. What is new about this approach is a special modeling of the exchange of information between the components at a high level of abstraction, which includes abstracted physical flow calculations and thus copes with the reversal of causality relationships in error cases. In contrast to pure simulation approaches, an RMS (Reason Maintenance System) is intended to support a targeted search for possible causes of certain unintended system malfunctions. The viability of the approach, particularly for safety analyses in the early phases of product development, and its ability to be integrated into existing development processes are being investigated.
Boin, Manuela:
Ergonomic optimization of rowing seats using personalized Human Body Models,
in: 14th European LS-Dyna Conference, DYNAmore GmbH, 2023, pages 11.
ISBN: 978-3-9816215-7-0
Voß, Ralf; Munoz-Sanchez, Manuel; Garcia, Alexandro:
Innovative Probabilistic Design of Airplane Parts,
in: DVM Report 1686, German Association for Materials Research, 2023, pages 49-68.
DOI: 10.48447/DVM-TAG-2023-BB
AUTOMOTIVE SOFTWARE
Philipp Hönig, Rüdiger Lunde, Florian Holzapfel: Formal Verification of Technical Systems Using smartIflow and CTL, Proceedings of the 2nd International Conference on Applications in Information Tech- nology (ICAIT-2016), Number of pages: 4, The University of Aizu Press, Aizu, Japan, 2016,http://web-ext.u-aizu.ac.jp/labs/is-se/conference proceedings/icait-16/icait-16-paper- 21.pdf
Philipp Hönig, Rüdiger Lunde, Florian Holzapfel: Model Based Safety Analysis with smartIflow, Information, Volume 8, Issue 1, 2017, MDPI, www.mdpi.com/2078-2489/8/1/7
FERTIGUNGSTECHNIK
Lückemeyer, L., Voß, R.: Probabilistic assessment of the service life of steam turbine components. DVM Conference "Reliability and Probabilistics", Munich, Oct. 29-30, 2014.
Voß, R., Almstedt, H.: Probabilistic assessment of the creep damage at the surface of steam turbine rotor shafts. 7th Dresden Probabilistic Workshop, Munich, Oct. 08-09, 2014.
Voß, R., Wartzack, S.:. Manufacturing process-oriented tolerance analysis - An approach using the example of cylinder head development. ZWF - Journal for economic factory operation, 06(107):432-436, 2012.
Voß, R.: Tolerance analysis of complex cast components using stochastic simulation of manufacturing influences. Epubli GmbH Berlin, 2012. ISBN 978-3-8442-1865-7.
Voß, R., Meerkamm, H., Wartzack, S.: Manufacturing Process Driven Tolerance Analysis of Casting Parts. In NordDesign, Gothenburg, Sweden, Aug. 25-27, 2010.
STRUCTURAL MECHANICS AND ACUSTICS
Falkenberger, S.: Optimization of the calculation of the sound radiation of transmission housings: experimental and analytical investigations on the noise development of vehicle manual transmissions; Dissertation 2018; Technische Univeristät Ilmenau zs. mit Hochschule Ulm
Werner, D., Falkenberger, S., Neher, J., Graf, B., Wender, B.; Calculation of the sound radiation of gearboxes; European Altair Technology Conference; Frankenthal, 26.06.2017
Falkenberger, S., Werner, D., Neher, J., Graf, B., Wender, B.; Validation of the measured and calculated dynamic bearing forces in gearboxes concerning the sound radiation of gearboxes;Proceedings of the International CAE-Conference Parma, 17.-18.10. 2016
Falkenberger, S., Werner, D., Neher, J., Graf, B., Wender, B.; Sound radiation of gearboxes - Investigation of the measured and calculated dynamic bearing force in gearboxes;Proceedings of the International Conference on Noise and Vibration Engineering (ISMA) Leuven, 19-21.09.2016
Falkenberger, S., Werner, D., Neher, J., Graf, B., Wender, B.; Validation of the measured and calculated dynamic bearing forces in gearboxes concerning the sound radiation of gearboxes; RecurDyn Technology Days 2016 Munich, 27.04.2016
Falkenberger S., Neher J., Graf B., Wender B.; Experimental and computational studies of the sound radiation of gearboxes;ICEDyn2015 Lagos (Portugal), 22.-24.06.2015
Falkenberger S., Neher J., Graf B., Wender B.; Computational and experimental studies of the noise development and sound radiation of gearboxes; Research report for mechanical engineering in Baden-Württemberg, WS2013/14.
Neher J., Graf B., Falkenberger S., Wender B.; Sound radiation simulation methods for gearboxes - with a special focus on ribs.; ISMA 2012 at the Katholieke Universiteit Leuven (Belgium), 17.-19.09.2012
Löfflad, J.; Eissner, M.; Graf, B.; Strain gauge Measurements of rotating parts with telemetry;IGHEM 2012 Trondheim (Norway); 27. - 30.06.2012
Neher, J.; Graf, B.; Wender, B.; Simulation methods for the sound radiation of gearboxes; PERMAS User's Conference, Heidelberg, April 26-27, 2012
D'Amico, R.; Neher, J.; Wender, B.; Pierini, M.; On the improvement of the solution accuracy for exterior acoustic problems with BEM and FMBEM; Engineering Analysis with Boundary Elements 36 (2012), pp. 1104-1115
Neher, J.: Computational and eperimental investigations of sound radiation in vehicle transmissions. Dissertation 2011, Ilmenau University of Technology in cooperation with Ulm University of Applied Sciences
Graf, B.; Chen, L.; Acoustic Fluid-Structural Interaction Method for Modal Analysis with Experimental Results of a Hydraulic Prototype Turbine Runner in Water; 36th MPA-Seminar Stuttgart; 07.10.2010
Neher, J.; Wender, B.;V alidated modeling of joints for the sound radiation simulation of gearboxes; ISMA 2010 at the Katholieke Universiteit Leuven (Belgium), 20.-22.09.2010
Neher, J.; Wender, B.; Simulated Gearbox Noise; NVC 2010, Universiti Kebangsaan Malaysia, Putrajaya, Malaysia, 28-30.06.2010
