汽车悬架主参数匹配仿真分析

Simulation Analysis of Main Parameters Matching of Automobile Suspension

以二自由度汽车模型为研究对象,探究不同的悬架参数对其减振性能的影响。借助MATLAB/Simulink搭建随机不平路面、确定性路面及二自由度车辆振动模型,进行汽车平顺性仿真,得到车身加速度、悬架动挠度及轮胎动载荷随不同悬架刚度、阻尼系数的变化规律,分析了不同悬架主参数对悬架平顺性能的影响。

Taking the two-degree-of-freedom automobile model as the research object,the influence of different suspension parameters on its vibration damping performance was explored.With the help of MATLAB/Simulink,a random uneven road surface,a deterministic road surface and a two-degree-of-freedom vehicle vibration model were built,and a car ride comfort simulation was conducted to obtain the body acceleration,suspension dynamic deflection and dynamic tire load with the different suspension stiffness and damping coefficient.The effects of different suspension key parameters on suspension ride comfort performance were analyzed.