Second International Conference on Rail Transportation
Research on the Influence of Turnout Rail Grinding in Different Forms on the High-Speed Trains’ Dynamic Characteristic
Publication: ICRT 2021
ABSTRACT
In view of the phenomenon of car body lateral alarm after the grinding of high-speed railway turnout, the different grinding methods of the turnout are researched. The wheel-rail contact model and the dynamic model are established while the high-speed train passing the turnout by the vehicle dynamics software. After that, the wheel/rail contact geometry characteristics, the wheel-rail wear, the vehicle running safety and the vehicle running stability are calculated, and the actual running stability of high-speed train vehicles after different grinding methods are compared. The results show that, compared with the traditional turnout rail grinding method, the left and right side of the turnout rail are symmetrical, and the wheel-rail equivalent conicity is more ideal after personalized turnout rail grinding. Moreover, when the train passes through the turnout, the wheel-rail wear, the operation safety, and the lateral stability are significantly improved, which is consistent with the measured data from field tests. Thus, the personalized grinding method can avoid the phenomenon of car body lateral alarm after the grinding.
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Information & Authors
Information
Published In
ICRT 2021
Pages: 419 - 431
Editors: Wanming Zhai, Ph.D., Southwest Jiaotong University, Kelvin C. P. Wang, Ph.D., Oklahoma State University, and Shengyang Zhu, Ph.D., Southwest Jiaotong University
ISBN (Online): 978-0-7844-8388-6
Copyright
© 2022 American Society of Civil Engineers.
History
Published online: Feb 8, 2022
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