Research of operation mode of high-speed trains on the effect of rail wear evolution law
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 14 November 2023
Issue publication date: 22 November 2023
Abstract
Purpose
With the increased speed and mileage of high-speed lines, the problem of rail wear is increasing. In actual operation, a large number of abnormal wear phenomena occur on both vehicles and rails during fixed line operation; therefore, the purpose of the study is to explored the rail wear for a variety of vehicles running in mixed operation.
Design/methodology/approach
This paper used the universal mechanism multibody dynamics software to establish the CRH2 high speed train (HST) and the CRH3 HST vehicle dynamic models, respectively. The mixed running of HSTs on the effect of rail wear evolution law was analyzed. The rail wear of the two vehicles with different curve radii, different wheel diameters and different under-rail stiffness was compared and analyzed.
Findings
The result showed that the rail wear of CRH3 HST is greater than that of CRH2 HST. The rail wear in the tangent track under mixed operation conditions is 25.4% less than when CRH3 HST operated independently. When there is a 1-mm wheel diameter difference, the maximum rail wear of CRH2 HST and CRH3 HST increases by 263% and 44%, respectively. The amount of rail wear is proportional to the under-rail stiffness, and the position of the maximum wear is almost unchanged.
Originality/value
Most studies on the evolution law of rail wear are conducted for a single vehicle type and a single line. This study explored the mixed running of HSTs on the effect of rail wear evolution law.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-08-2023-0276/
Keywords
Acknowledgements
The author(s) are grateful for the National Natural Science Foundation of China [Grant Number. 52302467, 52275176]; Chongqing Key Laboratory for Public Transportation Equipment Design and System Integration Open Fund [Grant Number: CKLPTEDSI-KFKT-202110]; China Railway Science [grant number 2022YJ238]; the China Postdoctoral Science Foundation [Grant Number: 2021M702978]; and the Research Innovation Foundation Designated for Graduate Students of Chongqing Jiaotong University [2023S0070].
Citation
Qi, Y., Wang, R., Cui, X., Sang, H. and Mao, W. (2023), "Research of operation mode of high-speed trains on the effect of rail wear evolution law", Industrial Lubrication and Tribology, Vol. 75 No. 10, pp. 1262-1271. https://doi.org/10.1108/ILT-08-2023-0276
Publisher
:Emerald Publishing Limited
Copyright © 2023, Emerald Publishing Limited