基于Adams和Matlab联合的汽车悬架系统仿真分析

伴随着虚拟样机技术的不断发展,虚拟物理模型与控制模型联合仿真技术日趋成熟。文中利用ADAMS软件,建立了二分之一车体四自由度汽车主动悬架的虚拟模型。通过集成车辆主动悬架系统的动力学方程,搭建了基于ADAMS和MATLAB联合的汽车悬架系统仿真平台。在此基础上,比较分析了某轿车汽车车身垂直加速度响应和车身俯仰角加速度响应,该模拟结果与文献1]数学模型的结果基本吻合,从而验证了系统仿真平台正确性。

Simulative Analysis of Automobile Suspension System Based on ADAMS and MATLAB

With the development of virtual prototyping technology, the virtual physical model and control model combined with simulation technology is becoming more and more mature. In this paper, a virtual model of the active suspension of vehicle with four degrees of freedom is established by using ADAMS soft-ware. By means of the dynamic equations of vehicle active suspension system, the simulation platform of vehicle suspension system based on ADAMS and MATLAB is built. On the basis of this, the vertical accel-eration response of a car body and the acceleration response of the body pitch angle are analyzed. The simu-lation results are basically consistent with the results of the 1] mathematical model, which verifies the cor-rectness of the system simulation platform.