基于二自由度车辆模型的悬架性能研究  

The Research of Suspension Performance Based on 2-DOF Model of Vehicle

作　　者：丁金刚[1] 黄志刚[1] 许耀云[2] 

机构地区：[1]北京工商大学材料与机械工程学院,北京100048 [2]燕山大学理学院,河北秦皇岛066004

出　　处：《农业装备与车辆工程》2011年第12期35-38,共4页Agricultural Equipment & Vehicle Engineering

摘　　要：以二自由度车辆模型为研究对象,基于车辆动力学和现代控制理论,研究车辆悬架系统的性能。在Matlab/Simulink里建立二自由度车辆振动和随机不平路面仿真模型,进行随机路面输入的平顺性仿真试验,并分析了悬架刚度、阻尼系数及轮胎刚度对悬架性能的影响,得出车身加速度、悬架动挠度、轮胎动载荷随悬架刚度、阻尼系数及轮胎刚度变化的规律。Based on the vehicle dynamics and the modem control theory, 2-DOF vehicle model was targeted to study the vehicle suspension performance. The 2-DOF vibration model of vehicle and the stochastic uneven road model were established in Matlab/ Simulink to make the ride performance simulation. The factors influencing suspension performance have been researched, including suspension stiffness, damping, tire stiffness. The analysis shows the variational rules of vehicle body vertical acceleration, suspension working space and dynamic along with the changing of suspension stiffness, damping, tire stiffness.

关 键 词：车辆 悬架 仿真 功率谱密度 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]