Optimization and test for suspension parameters of a heavy-duty truck

In order to study matching and optimization between suspension stiffness and damping for a multi-axle heavy-duty truck, a new optimal design method based on ADAMS was developed. Firstly, the frequency-domain simulation model for a 8×4 heavy truck was built with ADAMS/View. Then, its acceleration response characteristics were gained when the full load truck with an excitation of B-level random road irregularities, and the optimal parameters for the suspension system were calculated with the proposed optimal method. Finally, a real vehicle road test was conducted to verify the correctness of the simulation model and the feasibility of the optimal method. The test results could be used as a reference to guide the integrated optimization and matching design of heavy truck chassis systems.