Potential of Virtual Tribomechadynamics by Wolfgang Witteveen, October 2021

Potential of Virtual Tribomechadynamics

Wolfgang Witteveen

University of Applied Sciences Upper Austria, Campus Wels

October 12, 2021

Abstract:

The talk will focus on the potential of state-of-the-art virtual tribomechadynamics. The first part explains the theory of reduction and hyper-reduction based on contact modes and contact stress modes. This approach enables dynamics including nonlinear contact and friction with arbitrary fine and detailed FE meshes. The accuracy is comparable to the nonlinear Finite Element Method but the computational time is dramatically shorter. In the second part of the talk, it will be investigated whether recent measurements on the CBeam can be reproduced virtually, at least qualitatively. This concerns, for example, phenomena such as mode coupling, strong variation of the contact areas and a surprising high variability in the contact pressures of the joint.

Biography:

Prof. Wolfgang Witteveen received his DI degree in mechatronics in 1999 and his Ph.D. in 2007 from the Johannes Kepler University, Linz, Austria. During 1999 to 2002 he joined MAGNA Powertrain, as an application engineer for multi-body simulation. After a social year in Albania, he joined MAGNA again from 2003 to 2010. During that time he developed and implemented the simulation software MAMBA (http://mamba.ecs.steyr.com/). In 2010 he was appointed as Professor for simulation in mechanical engineering at the University of Applied Sciences Upper Austria, Wels. His fields of study include model reduction, multi-body simulation, jointed structures, structural vibrations, software engineering for mechanical applications, and biomechanics.