Research of section torsion beam based on multi-body dynamics

The three models of torsion beam and vehicle are constructed respectively based on three modeling solutions using one Geely car in order to accurately construct suspension model of torsion beam. And then different simulation analysis is performed, e.g. parallel wheel travel, opposite wheel travel, lateral force, pulse road test, steady-state circle. Moreover, simulation result and test value are compared. The comparison indicates that the simulation result of four section torsion beam model is similar to experimental value. It is accordingly presented that it is reasonable to construct a model by four section torsion beams when performing a simulation analysis on torsion beam suspension.