McPherson Suspension Kinematics Simulation Analysis And Optimization Design Based On ADAMS

With the rapid development of science and technology people’s request to automobile performance becomes higher, the Vehicle handling and stability performance of vehicle has become a very important performance metrics when the car is in the development stage.The traditional method of analysis has not kept up with the rapid pace of development of automobile, the application of virtual prototype technology becomes more and more important. The kinematic simulation analyses of suspension plays a very important role in suspension’s design and exploitation.Developers can do research on vehicle performance efficient through the simulation software of ADAMS.This paper take the kinematics of suspension to study McPherson suspension.the paper analysis the structural of the McPherson suspension, establish a simplified model of McPherson suspension in the module of ADMAS/Car, and do the kinematics simulation of suspension in the excitation of parallel wheel travel and opposite wheel travel. According to the results of simulation, we get the wheel alignment parameter which is not up to the requirement of design. Then,Taking the wheel alignment parameters as the objective function, we use the DOE function of ADAMS/Insight to modify the coordinate of hard point that is associated with Various wheel alignment parameters. By comparing the results before and after, it verifies the feasibility of this method.Based on the model of ADAMS, the paper achieved the goal that simulation analysis of the performance of suspension This article improving the kinematic characteristics of the wheel alignment parameters and improving the car’s handling and stability.This method has very important significance, it can shorten design cycle 、 lower cost and improve product quality in the development stages.