ARTICLE
Cause investigation of metro corrugation in vehicle braking section of track
Zhiqiang WANG 1  
,   Zhenyu Lei 1
 
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Institute of Rail Transit, Tongji University, Shanghai, China
CORRESPONDING AUTHOR
Zhiqiang WANG   

Institute of Rail Transit, Tongji University, China
Submission date: 2021-02-08
Final revision date: 2021-07-17
Acceptance date: 2021-07-22
Online publication date: 2021-09-28
Publication date: 2021-10-20
 
Journal of Theoretical and Applied Mechanics 2021;59(4):637–647
 
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ABSTRACT
In order to study the cause of rail corrugation in the tangential braking section near the metro entrance, a transient rolling contact model of three-dimensional solid wheelset-track was established by using the finite element software ABAQUS, and the corrugation phenomenon was analyzed in the time-domain and frequency-domain based on the field measurement. The results show that the unstable friction self-excited vibration of the wheelset-track system is the fundamental cause of rail corrugation in the measured section, and it is precisely because of the “saturated-unsaturated” periodic characteristic of the wheel-rail creep force that ultimately promotes the formation of rail corrugation.
 
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