Like Pan, Peihuo Peng, Tong Xing, Caizhi Yang, Fan He
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引用次数: 0
Abstract
The increase of the running speed of electric train has a certain influence on the dynamic performance of coupling of conductor rail and collector shoe. In this paper, the mechanical characteristics of coupling vibration between shoe and rail for high-speed trains are studied by using a numerical simulation method, and the effects of train speed on the vibration law of shoe-rail interaction system are analyzed. The results show that both the maximum displacement of the rail and the maximum contact force between the shoe and the rail increase with the increase of the train speed. The bending moment of the rail, the maximum displacement of the shoe, the elastic and viscous forces of the shoe all decrease first and then increase. In particular, when the train speed increases from 275 to 300 km/h, the displacement, bending moment, contact force, and other mechanical quantities increase significantly, which indicate that it will lead to a sharp increase in vibration degree when the train speed exceeds 275 km/h. Therefore, in the case of actual operating parameters in this paper, it is recommended that the train speed does not exceed 275 km/h.
电气化列车运行速度的提高对导轨与集电靴耦合的动态性能有一定的影响。本文采用数值模拟方法研究了高速列车集靴与钢轨耦合振动的力学特性，分析了列车速度对集靴-钢轨相互作用系统振动规律的影响。结果表明，随着列车速度的增加，钢轨的最大位移和鞋与钢轨的最大接触力都会增加。轨道的弯矩、鞋的最大位移、鞋的弹性力和粘性力均先减小后增大。特别是当列车速度从 275 km/h 增加到 300 km/h 时，位移、弯矩、接触力等力学量都会显著增加，这表明当列车速度超过 275 km/h 时，会导致振动程度急剧增加。因此，在本文实际运行参数的情况下，建议列车速度不超过 275 km/h。
期刊介绍：
Advances in Mechanical Engineering (AIME) is a JCR Ranked, peer-reviewed, open access journal which publishes a wide range of original research and review articles. The journal Editorial Board welcomes manuscripts in both fundamental and applied research areas, and encourages submissions which contribute novel and innovative insights to the field of mechanical engineering
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