城际动车组轮轨力统计特征

doi:10.3901/JME.2019.06.108

机械工程学报 ›› 2019, Vol. 55 ›› Issue (6): 108-115.doi: 10.3901/JME.2019.06.108

城际动车组轮轨力统计特征

丁然, 李强, 任尊松

北京交通大学机械与电子控制工程学院北京 100044

收稿日期:2018-03-30 修回日期:2018-12-24 出版日期:2019-03-20 发布日期:2019-03-20
通讯作者: 李强(通信作者),男,1962年出生,教授,博士研究生导师。主要研究方向为结构疲劳断裂、可靠性理论。E-mail:qli3@bjtu.edu.cn
作者简介:丁然,男,1989年出生,博士研究生。主要研究方向为疲劳可靠性理论。E-mail:12116339@bjtu.edu.cn;任尊松,1969年出生,教授,博士研究生导师。主要研究方向为车辆轨道系统动力学及结构强度。E-mail:zsren@bjtu.edu.cn
基金资助:
国家自然科学基金（11790281）和国家重点研发计划（2016YFB1200404-08，2016YFB1200505-012）资助项目。

Statistics Characters of Wheel/Rail Loads of Intercity EMU

DING Ran, LI Qiang, REN Zunsong

School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044

Received:2018-03-30 Revised:2018-12-24 Online:2019-03-20 Published:2019-03-20

摘要/Abstract

摘要： 目前很少见与城际动车组相关的轮轨力方面的研究。考虑到其速度等级和线路条件等均与高速动车组有很大不同，有必要对其轮轨力作进一步的研究。利用测力轮对技术对某城际动车组的轮轨力进行4 600 km的线路测试，结果表明提速后的新修线轮轨力的动荷系数为0.25～0.35，对比既有线没有明显变化，且与350 km/h高速动车组也无明显差异。统计结果表明即使是同一线路的去程和返程，其轮轨力垂、横向分力的联合分布也有明显差异。所得轮轨力的载荷谱和各种典型运用工况下的具体统计特征可用于车辆安全性、可靠性的评估及车辆动力学等相关领域的后续研究。

关键词: 测力轮对, 城际动车组, 轮轨力, 谐波分析

Abstract: With respect to intercity EMU, there are rare studies on its wheel/rail force at present. Considering that its speed level and line conditions are very different from the high-speed EMU, it is necessary to further study its wheel/rail force. By using the instrumented wheelset, the wheel/rail force of a intercity EMU is measured under a 4 600 km test. the testing results show that the dynamic load coefficient of the speed-increased new lines are about 0.25-0.35, which is not significant different from that of the existing lines, and that 350 km/h-high-speed EMU. The statistical results show that even the go and return of the same line, the joint distributions of the vertical and lateral force are significant different. The load spectra of wheel/rail force and the specific statistical characteristics under various typical conditions concluded in this paper can be used in the follow-up research in related fields such as assessment of vehicle safety, reliability or vehicle dynamics.

Key words: harmonic analysis, instrumented wheelset, intercity EMU, wheel/rail force

中图分类号:

U270

丁然, 李强, 任尊松. 城际动车组轮轨力统计特征[J]. 机械工程学报, 2019, 55(6): 108-115.

DING Ran, LI Qiang, REN Zunsong. Statistics Characters of Wheel/Rail Loads of Intercity EMU[J]. Journal of Mechanical Engineering, 2019, 55(6): 108-115.

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城际动车组轮轨力统计特征

Statistics Characters of Wheel/Rail Loads of Intercity EMU

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