摘要
首先根据国标GB/T 7031-2005机械振动道路路面谱测量数据报告,在MatLab中编写了随机路面激励谱仿真程序;利用拉格朗日方程建立了1/2车辆几何模型,并用Simulink对其进行了仿真;以不同等级路面和不同车速下的随机路面激励谱作为输入,分析了车辆在不同等级路面、不同车速下的车身加速度均方根值和后轮的动载均方根值。这对满足汽车行驶舒适性和行驶安全性的情况下优化悬架参数具有重要意义。
In this paper,the MatLab program of stochastic pavement excitation spectra was written according to GB/T 7031-2005.The Lagrange equation was used to establish 1/2 vehicle geometry model and Simulink was used to design the simulation program according to the above mathematical model.Random road incentive spectrum of different pavements and speeds are provided as an input in order to give an simulation analysis of Vehicle ride comfort and driving safety.It has a great significance for the optimization of suspension on the basis of meeting the requirements of vehicle ride comfort and driving safety.
出处
《淮阴工学院学报》
CAS
2011年第3期47-51,共5页
Journal of Huaiyin Institute of Technology
关键词
车辆振动
平顺性
动载
SIMULINK
车身加速度均方根值
vehicle vibration
vehicle running smoothness
dynamic load
Simulink
body-acceleration mean square root value
