車両の二次元衝突 : 衝突中の車両移動を考慮した場合

抄録

This paper deals with the two-dimensional collisions of vehicles based on the impulse-momentum relations. Usually, the impact is assumed to occur in an instant, and the movements of the vehicles during impact are ignored. In general, however, vehicles are deformed and moved each other for the duration of impact. It seems that these errors increase in some impact conditions. In this paper, it is assumed that vehicle deformations are characterized by a linear plastic body, and the impact plane and the impact point are determined from the shape of the crushed region at each time step. Collision problems considering vehicle movements during impact can be analyzed using this method. Several results of collision analysis are shown for comparison between this method and the method ignoring the vehicle movements. Finally, the vehicle velocities immediately after impact and the vehicle trajectories are discussed.