大学生方程式赛车前悬架系统优化设计研究

Study on Optimization Design of Front Suspension System of Formula Student Racing Car

悬架是赛车上的重要总成之一,合理设计悬架系统可以提高赛车的操纵稳定性和行驶平顺性。以某大学生方程式赛车前悬架系统为对象进行优化设计研究。首先建立了前悬架系统三维CATIA模型,然后选取模型硬点建立了ADAMS运动仿真模型,进行运动仿真分析和优化参数选取,根据悬架系统四轮定位参数及随车轮平行跳动的变化曲线,应用ADAMS/Insight模块对参数曲线进行了优化设计。优化前后仿真对比结果表明:设计的前悬架系统可保证赛车具有良好的操纵稳定性。

The suspension is one of the important assemblies on the car, and rational design of the suspension system can improve the car's handling stability and ride comfort. This paper studies the optimization design of the front suspension system of a college student formula car. Firstly, a 3D CATIA model of the front suspension system was established, then the ADAMS motion simulation model was established by selecting the hard points of the model, and the motion simulation analysis and optimization parameters were selected. According to the four-wheel positioning parameters of suspension system and the change curve of parallel run-out with wheels, the parameter curve is optimized by ADAMS/Insight module. The results of simulation before and after optimization show that the designed front suspension system can ensure good control stability of the car.