Modeling and Verification for Multi-body Dynamics of Heavy Vehicle

摘要

In this paper,a detailed rigid-flexible coupling multi-body dynamic model of heavy vehicle was established by using multi-body dynamics method,and two typical road models were built by using harmonic superposition method.Then,the platform of heavy vehicle dynamics simulation was established.The vibration response in the frame and axle of the heavy vehicle under random excitation was measured in an automobile proving ground.Simulation results and comparative analysis of experimental results showed that the multi-body vehicle model established in this paper was highly accurate,and it could he used for vehicle svstem dynamics analysis.