THEORETICAL-MODEL TO ANALYZE THE COLLISION OF AN AUTOMOBILE VEHICLE

This paper presents a theoretical model which is the basis of a comput er program to analyse the behaviour of an automobile when it collides with another vehicle or an obstacle. The model is based on the simulat ion of the behaviour of different resistant parts of the vehicle struc ture, employing rigidity and damping elements, with non-linear behavio ur laws for the latter. The model studies the collision and evaluates characteristics parameters, such us energy absorbed by the structures, structural deformation, elastic recovery, the loading process, decele rations during the collision, etc... The model has been developed usin g the Bond-Graph technique.