Strength Analysis of Torsion Beam of a MPV vehicle Based on ADAMS

This paper is based on HyperMesh and MotionView to establish a flexible body file of the rear torsion beam of a MPV vehicle, and then according to the vehicle parameters, bushing, shock absorber and spring and other parts properties and hard point information, the flexible file of torsion beam is input into ADAMS to establish the vehicle dynamic suspension model after rigid and flexible coupling; according to the load transfer, the ADAMS software is used to calculate the force at each connecting point of torsion beam under different working conditions, and the force at each point is added to the finite element model of torsion beam to analyze the stress distribution of torsion beam under each working condition. According to the post-processing cloud diagram, the risk points of torsion beam under various working conditions are found, which provides the direction and train of thought for the structural optimization of torsion beam in the later stage.