Research on the Curve Negotiation Performance of High-Speed Trains under Wind Load

被引：0
|
作者：
Bai X. [1 ,2 ]
Sun L. [1 ,2 ]
Wang Y. [1 ]
Zhou C. [1 ,2 ]
Chi C. [1 ,2 ]
机构：
[1] Railway Science and Technology Research and Development Center, China Academy of Railway Sciences Corporation Limited, Beijing
[2] Wheel-Rail System Laboratory, National Engineering Research Center of System Technology for High-Speed Railway and Urban Rail Transit, Beijing
来源：
Zhongguo Tiedao Kexue/China Railway Science | 2024年 / 45卷 / 02期
关键词：
Cant deficiency; Curve negotiation performance; Derailment coefficient; High-speed trains; Lateral force coefficient; Wheel unloading ratio; Wheelset lateral force; Wind load;
D O I：
10.3969/j.issn.1001-4632.2024.02.14
中图分类号：
学科分类号：
摘要：
Under the disadvantage working conditions of wind load and cant deficiency, the running safety of high-speed trains displays complicated variation laws. Therefore, it is necessary to conduct in-depth research on the safety of curve negotiation of high-speed trains under wind load. Based on the combined analysis method of aerodynamics and vehicle dynamics, the transient wind load model, the aerodynamic model and the vehicle dynamics model of high-speed train under cross wind are established taking into account the changes in running speed, wind speed, the measured wheel rail profile, as well as the track irregularity. The variation laws of aerodynamic load of high-speed trains under different wind speed and running speed are analyzed. And the variation laws of key dynamics parameters of high-speed trains are studied when train negotiates large radius curves with different cant deficiency at different speeds, including derailment coefficient, wheel unloading ratio and wheelset lateral force. The influence of wind load and cant deficiency on the derailment and overturning of high-speed trains is studied. The results show that the change in lateral force coefficient caused by wind speed is greater than that of running speed; under the disadvantage working conditions of wind load and cant deficiency, the safety margin of vehicle dynamics performance will significantly decrease such as the wheel unloading ratio and wheelset lateral force. And the working condition of key suspension components of the high-speed train deteriorates, the displacement of secondary lateral stop increases rapidly and it is tightly compressed, the pressure difference between the left and right air springs also increases rapidly, and the safety margin of the vehicle’s dynamic performance significantly decreases. © 2024 Chinese Academy of Railway Sciences. All rights reserved.
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页码：146 / 154
页数：8
相关论文
共 17 条
  • [1] YE Kun, LI Renxian, The Analysis of Aerodynamic Characteristics of the High-Speed Train in Different Railway Conditions under Crosswinds[J], Advanced Materials Research, pp. 58-63, (2013)
  • [2] WANG Ming, LI Xiaozhen, XIAO Jun, Et al., An Experimental Analysis of the Aerodynamic Characteristics of a High-Speed Train on a Bridge Under Crosswinds, Journal of Wind Engineering and Industrial Aerodynamics, 177, pp. 92-100, (2018)
  • [3] YE Kun, LI Renxian, Aerodynamic Characteristics Analysis of High-Speed Train on Cutting under Crosswinds[J], Applied Mechanics and Materials, 300, 301, pp. 62-67, (2013)
  • [4] LI Hongmei, YANG Fei, ZHANG Qian, Et al., Influence of Intersection by Same Speed of High Speed Trains in Tunnel on Vehicle Dynamic Performance, China Railway Science, 41, 1, pp. 64-70, (2020)
  • [5] BAKER C J., The Simulation of Unsteady Aerodynamic Cross Wind Forces on Trains, Journal of Wind Engineering & Industrial Aerodynamics, 98, 2, pp. 88-99, (2010)
  • [6] SUN Zhuang, HASHMI Syeda Anam, DAI Huanyun, Et al., Safety Comparisons of a High-Speed Train′s Head and Tail Passing by a Windbreak Breach[J], Vehicle System Dynamics, 59, 6, pp. 823-840, (2021)
  • [7] YU Mengge, JIANG Rongchao, ZHANG Qian, Et al., Crosswind Stability Evaluation of High-Speed Train Using Different Wind Models[J], Chinese Journal of Mechanical Engineering, 32, 3, pp. 168-180, (2019)
  • [8] XIANG Chaoqun, GUO Wenhua, YAN Junqing, Et al., Parametric Study on Critical Speed and Overturning Stability of High-Speed Train Running on Bridge under Crosswind, Journal of Central South University:Science and Technology, 46, 5, pp. 1929-1937, (2015)
  • [9] GAO Guangjun, TIAN Hongqi, YAO Song, Et al., Effect of Strong Cross-Wind on the Stability of Trains Running on the Lanzhou-Xinjiang Railway Line, Journal of the China Railway Society, 26, 4, pp. 36-40, (2004)
  • [10] WU Han, Hunting Stability of High-Speed Railway Vehicle Considering the Effects of Aerodynamic Loads on a Curved Track, (2015)
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