铁道车辆横向半主动悬挂系统仿真

Simulation of the Lateral Semi-active Suspension System of Railway Vehicle

运用ADAMS软件建立车辆动力学模型,进行动力学仿真运算。将由此得到的仿真结果传给MAT LAB软件,由MATLAB软件编写开关控制算法,计算出横向最优阻尼并将其值传给车辆模型。通过改变车辆模型中的横向阻尼值再次进行仿真运算,将运算结果再次传给MATLAB软件。如此相互调用,循环计算,从而找出最佳匹配阻尼值。在DSP硬件平台上编写横向半主动控制算法,使逐步寻优和开关控制相结合,以实现最优阻尼的开关控制。经使用标准信号和实车随机信号对算法进行仿真验证表明,这种控制算法简单可靠,能够实现对车辆横向的半主动控制策略。

Vehicle dynamics model was created by the software ADAMS and dynamic computing was carried out. The result was transferred to the software MATLAB, and the on/off control algorithm was programmed by the use of MATLAB worked out the optimization of the lateral damp, subsequently passed it to the vehicle model. By modifying the lateral damp of the vehicle model, simulation computing was fulfilled again and the result was transferred to MATLAB. The mutual transfer and periodic computing were not over until the most appropriate damping value was found. A lateral semi-active control algorithm was designed on the DSP platform with the stepwise optimization combining the on/off sky-hook control to realize the on/off control of the optimization damp. Then the sine and random car signals were input to certificate the algorithm. The result shows that the control algorithm is simple and applicable, therefore it can realize the lateral control of the vehicle.