悬架弹簧刚度对汽车操纵稳定性影响仿真研究  

Simulation Study on Influence of Suspension Spring Stiffness on Vehicle Handling Stability

作　　者：张丽霞 葛小菡 潘福全 刘家琪 Zhang Lixia;Ge Xiaohan;Pan Fuquan;Liu Jiaqi(School of Mechanical&Automotive Engineering,Qingdao University of Technology,Qingdao City,Shandong Province 266520,China)

机构地区：[1]青岛理工大学机械与汽车工程学院

出　　处：《农业装备与车辆工程》2020年第1期6-11,共6页Agricultural Equipment & Vehicle Engineering

基　　金：国家自然科学基金项目（51505244）;中国博士后基金项目（2016M590626）

摘　　要：基于ADAMS/Car模块,建立整车多刚体系统模型。通过改变前悬架螺旋弹簧刚度,进行了转向盘转角阶跃输入、转向盘转角脉冲输入和单移线3种典型工况整车仿真试验。通过对比仿真试验数据,对汽车操纵稳定性各性能指标进行评价,研究悬架螺旋弹簧刚度对汽车操纵稳定性的影响。结果表明,增大前悬架弹簧刚度,侧向加速度、横摆角速度和侧倾角幅值变小,即汽车操纵稳定性变好。因此可以认为,合理增大弹簧刚度值可改善汽车操纵稳定性。The multi-rigid-body system vehicle model was created based on ADAMS/Car.By modifying the stiffness of the helical spring of the front suspension,the vehicle simulation tests under three typical operating conditions,namely,the Step Steer,Impulse Steer and Single Lane Change,were carried out.The simulation test data were obtained and compared,the evaluation of various performance indexes of the vehicle handling stability was completed,and the influence of the suspension spring stiffness on vehicle handling stability was studied.The simulation results show that with the increase of the stiffness of the front suspension spring,the lateral acceleration,yaw and the displacements of the roll angle decreased,and the vehicle handling stability improved.Therefore,a reasonable increase in the spring stiffness value can improve the vehicle handling stability.

关 键 词：汽车 操纵稳定性 ADAMS/CAR 弹簧刚度 悬架 

分 类 号：U462.3[机械工程—车辆工程]