服役条件下提速地铁车辆的横向运动稳定性研究

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摘要地铁提速是未来轨道交通发展的必然趋势，服役条件下的车轮磨损会导致车轮半径减小和等效锥度增大，容易造成车辆蛇行失稳。为了保持服役条件下提速地铁车辆的横向运动稳定性，通过调研获取了上海某线路地铁车辆的车轮磨损情况，建立了含抗蛇行减振器的地铁横向动力学模型，研究了车轮磨损对于地铁车辆横向运动稳定性的影响，对比服役条件下有无抗蛇行减振器的车辆临界速度，指明了安装抗蛇行减振器对于服役地铁提速的必要性。结果表明：服役条件下的地铁车辆车轮半径减小以及等效锥度增大会降低车辆的临界速度，增大蛇行运动幅值。通过安装抗蛇行减振器，能有效地解决地铁车辆车轮磨损以及提速带来的横向运动稳定性裕量不足的问题，同时也能避免地铁车辆在异常参数匹配下发生一次蛇行运动。论文工作对探究服役地铁车辆进一步提速以及车轮和钢轨的维护保养具有一定的参考价值。

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	吴俊汉1
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	文永蓬1
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	宗志祥4
	周月1
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	董昊亮1
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关键词 ：地铁车辆, 蛇行运动, 等效锥度, 抗蛇行减振器, 横向运动稳定性

Abstract：The improvement of metro speed is the inevitable trend of rail transit development in the future. Wheel wear under service conditions will decrease the wheel radius and increase the equivalent conicity, which is prone to occur vehicle hunting instability.To maintain the lateral motion stability of the accelerated metro vehicles under service conditions, the wheel wear of metro vehicles on a certain line in Shanghai was obtained through investigation. The 17-DOF lateral dynamic model of metro vehicles with anti-yaw damper was established to study the influence of wheel wear on the lateral motion stability of metro vehicles. Comparison of the hunting critical velocity of vehicles with or without anti-yaw damper pointed out the necessity of installing anti-yaw damper for improving themetro speed under service conditions. It is shown that the decrease of wheel radius and the increase of equivalent conicity of metro vehicles under service conditions will reduce the critical velocity and increase the camplitude of hunting motion.The installation of anti-yaw damper can fundamentally solve the problem of insufficient lateral motion stability margin caused by wheel wear and speed increase of metro vehicles, it can also avoid the primary hunting motion of metro vehicles under abnormal parameter matching at the same time. The work of this paper has a certain reference value for improving themetro speed under service conditions and the maintenance of wheels and rails.

Key words： metro vehicles hunting motion equivalent conicity anti-yaw damper lateral stability

收稿日期: 2021-10-14 出版日期: 2023-02-15

引用本文:

吴俊汉1,2，文永蓬1,2,3，宗志祥4，周月1,2，董昊亮1,2. 服役条件下提速地铁车辆的横向运动稳定性研究[J]. 振动与冲击, 2023, 42(3): 304-312.
WU Junhan1,2, WEN Yongpeng1,2,3, ZONG Zhixiang4, ZHOU Yue1,2, DONG Haoliang1,2. Lateral motion stability of speed-up metro vehicles under service conditions. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(3): 304-312.

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http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2023/V42/I3/304

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