不同线路条件下高速列车轮轨力的试验研究

doi:10.3901/JME.2023.10.323

机械工程学报 ›› 2023, Vol. 59 ›› Issue (10): 323-332.doi: 10.3901/JME.2023.10.323

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不同线路条件下高速列车轮轨力的试验研究

张一喆, 张志超, 杜瑞涛, 祖宏林, 储高峰

中国铁道科学研究院集团有限公司机车车辆研究所北京 100081

收稿日期:2022-09-28 修回日期:2023-04-20 出版日期:2023-05-20 发布日期:2023-07-19
通讯作者: 张志超(通信作者),男,1982年出生,博士,副研究员。主要研究方向为机车车辆动力学。E-mail:zhangzc624@163.com E-mail:zhangzc624@163.com
作者简介:张一喆,男,1987年出生,博士,助理研究员。主要研究方向为车辆轮轨动力学及疲劳可靠性。E-mail:zyzcars@163.com
基金资助:
中国铁道科学研究院集团有限公司重点基金资助项目(2021YJ284)。

Experimental Research on Wheel-rail Force of EMU under Different Line Conditions

ZHANG Yizhe, ZHANG Zhichao, DU Ruitao, ZU Honglin, CHU Gaofeng

Locomotive & Car Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing 100081

Received:2022-09-28 Revised:2023-04-20 Online:2023-05-20 Published:2023-07-19

摘要/Abstract

摘要： 轮轨作用力是考量高速列车运行安全性和平稳性最关键的参数。随着运行速度的不断提高,高速列车动力学性能和走行部可靠性问题不断增多,开展高速状态下轮轨载荷特征、分布规律和安全性的研究显得愈发重要。采用连续测量测力轮对测量某高速列车在不同线路状况、运用速度下的轮轨作用力,分析研究直线、曲线、不同型号道岔等工况下的轮轨力时频特性、统计分布规律。结果表明,有砟轨道的轮轨力频响范围部分大于无砟轨道。轮轨力样本普遍呈正态分布,垂向力分布离散程度与速度正相关,而曲线工况下,横、垂两向力的分布均值取决于曲线的欠超高量。脱轨系数和轮重减载率最大值均出现在侧向过岔时,18号、42号道岔脱轨系数分别为0.49、0.37,两种型号道岔轮重减载率分别为0.20和0.23,满足安全要求。上述结论为轮轨动力学试验提供了参考,也为高速铁路设计给出建议。

关键词: 高速列车, 连续测力轮对, 工况, 轮轨力, 分布规律

Abstract: The wheel-rail force is the most important index for considering the safety and stability of high-speed electric multiple units(EMU). With the continuous increase of speed, the dynamic performance and reliability of the running part of high-speed trains are increasing. It is becoming more and more important to carry out research on wheel-rail load characteristics, distribution rules and safety under high-speed conditions. In this paper, continuous force-measuring wheelset is used to measure the wheel-rail forces of a high-speed train under typical railway conditions and operating speeds. The analysis have obtained the wheel-rail forces characteristics under straight lines, curves, and various types of turnouts. Research has found that the frequency response range of wheel-rail force on ballasted tracks is partly larger than that on ballastless tracks. The wheel-rail force samples are generally distributed normally, and the dispersion degree of the vertical force distribution is positively correlated with the speed. Under the curve working condition, the mean value of the horizontal and vertical force distribution depends on the under-elevation of the curve. The maximum derailment coefficient and rate of wheel load reduction both appear when passing the turnout. The derailment coefficients of No. 18 and No. 42 turnouts are 0.49 and 0.37 respectively, and rate of wheel load of the two models are 0.20 and 0.23 respectively, which meet the safety requirements. The above conclusions provide references for wheel-rail dynamic test; it also gives suggestions for high-speed railway design.

Key words: electric multiple units(EMU), continuous force-measuring wheelset, working condition, wheel-rail force, distribution law

中图分类号:

U270

张一喆, 张志超, 杜瑞涛, 祖宏林, 储高峰. 不同线路条件下高速列车轮轨力的试验研究[J]. 机械工程学报, 2023, 59(10): 323-332.

ZHANG Yizhe, ZHANG Zhichao, DU Ruitao, ZU Honglin, CHU Gaofeng. Experimental Research on Wheel-rail Force of EMU under Different Line Conditions[J]. Journal of Mechanical Engineering, 2023, 59(10): 323-332.

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不同线路条件下高速列车轮轨力的试验研究

Experimental Research on Wheel-rail Force of EMU under Different Line Conditions

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