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With the increasing speed of high-speed trains, the wear of wheel and rail is becoming increasingly serious. It is difficult to take into account the contradiction between high-speed stability and curve negotiation capability of vehicles and the emerging new contradiction by setting conventional yaw dampers with fixed parameters. In order to further improve the comfort and high-speed stability of passenger trains and reduce the wear of wheel and rail, it is necessary to design a semi-active yaw damper solution. In this paper, an innovative design prototype of semi-active yaw damper is proposed and its numerical simulation model is established. The accuracy of the model is verified by bench test. From the perspective of dynamics, a control strategy of the yaw damper is proposed based on a real-time curve identification strategy. In order to verify the effectiveness of the implementation of the solution in solving the above problems at the same time, three different comparative operating conditions are designed through the roller rig and the numerical simulation model.

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Numerical and Experimental Study on Improving the Dynamics Performance of High-Speed Train with Semi-active Yaw Damper

  • 会议论文

  • 发表日期：

    2025年

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  • Zhaotuan Guo,
  • Maoru Chi,
  • Liangcheng Dai,
  • Shulin Liang,
  • Huansheng Wang

摘要

With the increasing speed of high-speed trains, the wear of wheel and rail is becoming increasingly serious. It is difficult to take into account the contradiction between high-speed stability and curve negotiation capability of vehicles and the emerging new contradiction by setting conventional yaw dampers with fixed parameters. In order to further improve the comfort and high-speed stability of passenger trains and reduce the wear of wheel and rail, it is necessary to design a semi-active yaw damper solution. In this paper, an innovative design prototype of semi-active yaw damper is proposed and its numerical simulation model is established. The accuracy of the model is verified by bench test. From the perspective of dynamics, a control strategy of the yaw damper is proposed based on a real-time curve identification strategy. In order to verify the effectiveness of the implementation of the solution in solving the above problems at the same time, three different comparative operating conditions are designed through the roller rig and the numerical simulation model.