Analysis of Worn Wheel-rail Contact Relationship and Line Adaptability

被引：0
|
作者：
Yang Z. [1 ]
Dai H. [1 ]
Shi J. [2 ]
Wei L. [1 ]
Gan F. [1 ]
机构：
[1] State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu
[2] CRRC Tangshan Co., Ltd., Tangshan
来源：
Tiedao Xuebao/Journal of the China Railway Society | 2021年 / 43卷 / 05期
关键词：
Contact bandwidth; Equivalent conicity; Rail profile; Wheel-rail relationship; Worn wheel;
D O I：
10.3969/j.issn.1001-8360.2021.05.005
中图分类号：
学科分类号：
摘要：
In the dynamic experiment of high-speed trains, it is found that the lateral high-frequency harmonic vibration of the bogie frame increases significantly when the vehicle runs across the line, which is usually directly related to the wheel-rail relationship of the vehicle. The real wheel-rail contact relationship of EMU was studied by measuring rail and wheel tread profiles. The analysis of the reasons for the difference of wheel-rail relationship was completed based on the difference of rail and vehicle tread profiles from different lines. The results show that the larger value of the equivalent conicity of the wheelset lateral displacement in the range of 0~3 mm is mainly responsible for the abnormal vibration of the vehicle. The different absolute value of slopes of wheel profiles result in the difference of contact relationship between different vehicles on the same line. The difference positions of the rail top and rounded angle of railhead are responsible for the different wheel-rail relationship when EMU running on different lines. Therefore, the rail profile of different lines should be accurately controlled to avoid excessive difference between rounded angle of railhead and rail top position, so as to improve the wheel rail contact relationship during EMU's cross line operation and improve the line adaptability of EMU. © 2021, Department of Journal of the China Railway Society. All right reserved.
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页码：37 / 46
页数：9
相关论文
共 17 条
  • [1] LUO Ren, ZENG Jing, DAI Huanyun, Et al., Running Adaptability of High-speed EMU, Journal of Traffic and Transportation Engineering, 11, 6, pp. 37-43, (2011)
  • [2] HUANG Zhaowei, CUI Dabin, DU Xing, Et al., Influence of Deviated Wear of Wheel on Performance of High-speed Train Running on Straight Tracks, Journal of the China Railway Society, 35, 2, pp. 14-20, (2013)
  • [3] JIN Xuesong, ZHAO Guotang, LIANG Shulin, Et al., Characteristics, Mechanisms, Influences and Counter Measures of High Speed Wheel/rail Wear: Transverse Wear of Wheel Tread, Journal of Mechanical Engineering, 54, 4, pp. 3-13, (2018)
  • [4] MA Xiaochuan, WANG Ping, XU Jingmang, Et al., Dynamic Performance Analysis of High Speed Vehicle Based on LMA Worn Wheel Matching with 60N Rail, China Railway Science, 39, 1, pp. 93-99, (2018)
  • [5] POLACH O., Characteristic Parameters of Nonlinear Wheel/rail Contact geometry, Vehicle System Dynamics, 48, S1, pp. 19-36, (2010)
  • [6] SUN Yu, ZHU Shengyang, ZHAI Wanming, Influence of Tread Hollow-worn Wheel on Wheel/rail Interaction, Journal of Mechanical Engineering, 54, 4, pp. 109-116, (2018)
  • [7] WEI L, ZENG J, CHI M, Et al., Carbody Elastic Vibrations of High-speed Vehicles Caused by Bogie Hunting Instability, Vehicle System Dynamics, 55, 9, pp. 1321-1342, (2017)
  • [8] QI Y, DAI H, SONG C, Et al., Shaking Analysis of High-speed Train's Carbody When Cross Lines, Journal of Mechanical Science and Technology, 33, 3, pp. 1055-1064, (2019)
  • [9] WILSON N, WU H, TOURNAY H, Et al., Effects of Wheel/rail Contact Patterns and Vehicle Parameters on Lateral Stability, Vehicle System Dynamics, 48, S1, pp. 487-503, (2010)
  • [10] REN Zunsong, Study on Wheel-rail Multi-point Contact Calculation, Journal of the China Railway Society, 33, 1, pp. 25-30, (2011)
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