摘要
以某款轿车的横向稳定器为研究对象,研究其在行驶过程中对车辆侧倾性能的影响。首先建立装有横向稳定器的四自由度的车辆悬架系统数学模型,采用Matlab/Simulink工具箱进行仿真分析。然后以随机路面激励和稳定器刚度系数作为输入量,以汽车悬架的质心速度、侧倾角速度和悬架的变形作为输出量。通过对比仿真曲线,得知装有横向稳定器的悬架系统与无横向稳定器的悬架系统相比,车身侧倾角度减小,操纵稳定性和行驶安全性有一定程度的改善。
Influence of the anti-roll bar on the roll performance of a vehicle was studied. A four-DOF mathematical model of the suspension system of the vehicle with an anti-roll bar was established. Simulation of the model was carried out by means of Matlab/Simulink. In the simulation, the response curves under random road-profile excitation and the stiffness coefficient of the anti-roll bar were given as the input. The response curves of the body vertical velocity, the body roll angle and the suspension dynamic deflection were obtained. Compared with those without anti- roll bars, the simulation results show that the body roll angle is reduced obviously by using the anti- roll bar. Meanwhile, the vehicle handling stability and ride comfort are improved.
出处
《噪声与振动控制》
CSCD
2015年第2期61-64,共4页
Noise and Vibration Control
