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主要研究具有空气弹簧悬挂系统转向架的铁道车辆 ,提出采用主动、半主动悬挂策略来改善车辆的垂直运行平稳性 ,并由此提出随机最优控制 ,阀控主动控制和半主动悬挂等三种不同悬挂控制策略。在最优控制和阀控主动控制策略中 ,空气弹簧既被用作二系悬挂元件 ,又被用作控制执行元件。在半主动悬挂策略中 ,连接空气弹簧和附加空气室的节流孔直径将按照控制规律来调节。理论及参数研究表明 :这些控制方式是有效的 ,最后给出了阀控悬挂的实验结果。
This paper mainly studies on railway vehicles with air spring suspension system bogies. It proposes that active and semi-active suspension strategies be used to improve the vertical running stability of vehicles, and three kinds of stochastic optimal control, active valve control and semi-active suspension are proposed Different suspension control strategies. In the optimal control and valve-controlled active control strategy, the air spring is used both as a secondary suspension element and as a control actuator. In the semi-active suspension strategy, the diameter of the orifice connecting the air spring and the additional air chamber is adjusted according to the control law. Theoretical and parametric studies show that these control methods are effective and the experimental results of valve-controlled suspension are given.