SIMULTANEOUS COLLISIONS OF RIGID BODIES IN MORE THAN ONE POINT

摘要

In this paper we consider the multi-contacts collision of rigid bodies, in other words - simultaneous impact of solids in two or more points. It is difficulty to predict the result of such collision and behavior of bodies, especially for collisions with friction. Bodies can separate in contact point at the very beginning of impact, or at the end of impact, can slide during all impact period, or during part of the impact time. It is necessary to detect impulse forces for each contact point, and in the most case problem became unsolved. In this paper some cases of multi-contact collisions are discussed and some simple problems of such impact are solved in the framework of rigid body model, using impulse - momentum based approach.