基于可变刚度抗蛇行减振器的车辆动力学性能研究

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摘要 CRH3系列高速动车组在长期服役过程中偶有发生蛇行运动稳定性裕量不足的问题，车辆装配T60型抗蛇行减振器，在车轮磨耗末期易发生构架横向加速度报警问题，装配T70型抗蛇行减振器，则在新轮或车轮磨耗初期易发生“晃车”的问题。本文针对晃车和报警问题开展可变刚度抗蛇行减振器的仿真与试验研究，以满足车辆在不同轮轨接触状态下车辆的蛇行运动稳定性需求。动力学仿真表明，可变刚度抗蛇行减振器能有效兼顾解决“晃车”和“报警”问题；进一步分析可变刚度抗蛇行减振器与两种高速踏面的适应性，采用S1002CN踏面时车辆临界速度高于350km/h，而采用LMB10踏面时仅为220km/h，且S1002CN踏面对应的平稳性和舒适度指标都优于LMB10踏面。最后通过整车滚振台架试验对变刚度抗蛇行减振器性能进行了试验验证，结果表明该减振器可以兼顾轮轨低锥度和高锥度匹配状态，可使车辆均具有良好的动力学性能。

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	霍文彪1
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	刘学刚2
	李辰生2
	刘志强1
	邬平波1

关键词 ：高速列车, 抗蛇行减振器, 变刚度, 晃车, 失稳报警, 动态刚度, 动态阻尼

Abstract：During the long-term service of CRH3 series high-speed EMUs, the problem of insufficient stability margin for hunting motion occasionally occurs, the vehicle is equipped with T60 yaw damper, and the frame lateral acceleration alarm problem is prone to occur at the worn wheel state. When the vehicle is equipped with T70 yaw damper, the ‘carbody hunting’ issue is easy to occur in the early stage of wheel wear or new wheels. In this paper, the simulation and experimental research of frequency selected stiffness yaw damper was carried out for the problem of carbody hunting and frame alarm, so as to meet the needs of the vehicle's hunting motion stability under different wheel-rail contact states.Dynamic simulation shows that the frequency selected stiffness yaw damper can effectively solve the problems of ‘carbody hunting’ and ‘frame alarm’. The adaptability of the frequency selected stiffness yaw damper and two high-speed treads was further analyzed, and the vehicle critical speed is higher than 350km/h when the S1002CN is used, the LMB10 tread is only 220km/h, and the stability and comfort index corresponding to the S1002CN are better than those of the LMB10. Finally, the performance of the frequency selected stiffness yaw damper is verified by the rolling vibration bench test of the whole vehicle, the results show that the frequency selected stiffness yaw damper has good dynamic performance under the wheel-rail matching conditions of low equivalent conicity, normal equivalent conicity and equivalent conicity.

Key words： High-speed train yaw damper frequency selected stiffness carbody hunting bogie hunting dynamic stiffness dynamic damping

收稿日期: 2022-02-09 出版日期: 2023-05-15

引用本文:

霍文彪1,2，刘学刚2，李辰生2，刘志强1，邬平波1. 基于可变刚度抗蛇行减振器的车辆动力学性能研究[J]. 振动与冲击, 2023, 42(9): 95-105.
HUO Wenbiao1,2, LIU Xuegang2, LI Chensheng2, LIU Zhiqiang1,WU Pingbo1. Vehicle dynamic performance based on variable stiffness yaw damper. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(9): 95-105.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2023/V42/I9/95

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