Concurrent Multiple impacts in rigid bodies: Formulation and simulation

Abstract : The analysis of collisions in multi-body systems has been a topic of continuous research in recent years. The purpose of this paper is to exhibit a multiple impact law for rigid body dynamical system built on physically motivated parameters. This law must meet the properties of closing the non-smooth dynamical equations and of corroborating experiments. Studying the most basic multi-body impact problem ( the chain of ball), we highlight the properties of our impulse ratio based law. These properties are : existence and uniqueness of the post-impact velocities, compliance with the unilateral constraints, energy balance and the numerical tractability. We then attempt to extend our formulation to the general case of Lagrangian systems by studying a bidimensional chain. This study paves the way towards more general results on the quantitative and qualitative properties of a multiple impact law based on a impulse ratio.
Type de document :
Communication dans un congrès
Dick H. van Campen. ENOC-2005, Aug 2005, Eindhoven, Netherlands. 2005, 〈www.enoc2005.tue.nl/〉
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Vincent Acary, Doh-Elvis Taha. Concurrent Multiple impacts in rigid bodies: Formulation and simulation. Dick H. van Campen. ENOC-2005, Aug 2005, Eindhoven, Netherlands. 2005, 〈www.enoc2005.tue.nl/〉. 〈inria-00424055〉

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