RESEARCH PAPERS: Design Automation

Dynamical Simulation of Planar Systems With Changing Contacts Using Configuration Spaces

[+] Author and Article Information
E. Sacks

Computer Science Department, Purdue University, West Lafayette, IN 47907

L. Joskowicz

Institute of Computer Science, The Hebrew University, Jerusalem 91904, Israel

J. Mech. Des 120(2), 181-187 (Jun 01, 1998) (7 pages) doi:10.1115/1.2826957 History: Received February 01, 1997; Revised December 01, 1997; Online December 11, 2007


This paper presents a contact analysis algorithm for pairs of rigid, curved, planar parts based on configuration space computation. The algorithm is part of a dynamical simulator for planar systems with changing contact topologies. The configuration space of a pair of parts is a data structure that encodes the contact configurations for all pairs of part features. The configuration spaces of the interacting pairs in the mechanical system are constructed before the simulation. At each time step, the simulator queries the configuration spaces for contact changes instead of performing collision detection. The simulator demonstrates the efficacy of the configuration space approach to contact analysis. It achieves real-time performance on systems with complex contact geometry, curved parts, and changing contacts.

Copyright © 1998 by The American Society of Mechanical Engineers
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