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研究铁道车辆横向主动悬挂采用H∞控制方案的振动控制效果。建立考虑车体横移、摇头、侧滚以及转向架横移的铁道车辆横向主动悬挂的控制模型。以该模型为基础,利用MATLAB软件设计铁道车辆横向主动悬挂的H∞控制器。为了验证设计得到的H∞控制器的控制效果,采用ADAMS/Rail多体动力学软件建立整车模型,与MATLAB软件进行联合仿真,比较被动悬挂、Skyhook主动悬挂、H∞主动悬挂3种情况下的仿真结果。结果表明,车辆横向主动悬挂采用H∞控制器后振动控制效果明显,有很强的鲁棒性,可以将车体横向加速度的低频部分减小2倍以上,且不会增加车体横向加速度的高频部分。
This paper studies the vibration control effect of the H∞ control scheme for the lateral active suspension of railway vehicles. The control model of lateral suspension of railway vehicles considering the lateral movement, shaking head, roll-over and bogie moving is established. Based on the model, MATLAB software was used to design the H∞ controller for the lateral suspension of railway vehicles. In order to verify the control performance of the designed H∞ controller, the vehicle model was established by using ADAMS / Rail multi-body dynamics software and the simulation was carried out with MATLAB software. Compared with passive suspension, Skyhook active suspension and H∞ active suspension Simulation results. The results show that the vibration control effect of the vehicle with H∞ controller is obvious and it is robust. It can reduce the low frequency part of lateral acceleration of vehicle body more than twice without increasing the lateral acceleration of vehicle body High-frequency part.