Kinematic Analysis and Optimization Design of Vehicle Suspension System

Abstract

In order to study on the kinematic characteristic of a light vehicle suspension system, the kinematic simulation model of the whole double-wishbone independent suspension was built using ADAMS software. In order to reflect the actual running condition of the vehicle, the random excitation of the test platforms of the left and right wheels were created, respectively. The variable regularity of the kinematic characteristic parameters was uncovered in the process of the suspension motion. The irrationality of the suspension guiding mechanism design was pointed out through simulation and analysis, and the existent problems of the guiding mechanism were optimized and calculated. The results show that there is small variation of the front wheel orientation parameters before and after optimization, and all of them are within the design requirement ranges. The variation of the WCD (wheel center distance) and FWSS (front wheel sideways slippage) are bigger, and still within the ideal ranges after optimization. The anticipated optimization goal is achieved, and an important basis is provided for the improving design of the light vehicle suspension.