Multibody System Dynamics

, Volume 14, Issue 2, pp 137–154

Simulation of Unilateral Constrained Systems with Many Bodies

Authors

    • Institute of Applied MechanicsTechnical University of Munich
  • Friedrich Pfeiffer
    • Institute of Applied MechanicsTechnical University of Munich
  • Heinz Ulbrich
    • Institute of Applied MechanicsTechnical University of Munich
Article

DOI: 10.1007/s11044-005-0725-x

Cite this article as:
Förg, M., Pfeiffer, F. & Ulbrich, H. Multibody Syst Dyn (2005) 14: 137. doi:10.1007/s11044-005-0725-x

Abstract

Nowadays the theory of multi-body systems including unilateral constraints is quite well established. However, the tendency towards more and more detailed and complex models may not be compensated with increasing computer power. In fact the growing computational effort demands for improved numerical methods in order to solve large systems. In this paper a time-stepping method is proposed for the computation of multi-body systems with many unilateral constraints. Stability and accuracy are discussed with respect to the given discretisation. In order to handle many contacts an iterative algorithm is applied based on a Gauss-Seidel relaxation scheme. A numerical example shows the efficiency of the relaxation scheme in comparison with Lemke's method and an Augmented Lagrangian approach.

Keywords

multi-body systemunilateral constraintsimpactsfrictiontime-stepping

Copyright information

© Springer Science + Business Media, Inc. 2005