• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2018, Vol. 54 ›› Issue (4): 22-29.doi: 10.3901/JME.2018.04.022

Previous Articles     Next Articles

Influence of Curve Superelevation of Heavy Haul Railway on Rail Wear Based on Revised Wheel/Rail Non-Hertz Contact

YANG Xinwen, YAO Yiming, ZHOU Shunhua, LIAN Songliang   

  1. Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, Shanghai 201804
  • Received:2017-05-02 Revised:2017-12-25 Online:2018-02-20 Published:2018-02-20

Abstract: In order to investigate the effect of curve superelevation on rail wear of heavy haul railway, a finite element method is used to solve the wheel/rail normal contact influence coefficient, and a detail model is established to predict and analyze the rail wear. The model includes vehicle-track coupled dynamics model, the revised wheel/rail non Hertz normal contact model, wheel/rail tangential contact model and the Archard wear model, and verifies the correctness of the prediction model with field measurement. The model is used to calculate the influence of the curve superelevation on rail wear in heavy haul railway. The results show that:(1) under the conditions of curve radius 450m at a vehicle speed of 60km/h, the side wear of higher rail is greater than the vertical wear; (2) with the wheel passing weight increasing, the development of wear width and vertical wear are stepped up, and the wear width increases rapidly in the early phase, then tends to be stable; (3) under the conditions of superelevation of 0.05m, 0.07m, 0.09m and curve radius 1000m, the higher rail's wear increase, whereas the lower rail's wear decreased, which is because the effect of lateral displacement of wheelset is more significant than that of wheel/rail normal force on rail wear.

Key words: archard wear model, heavy haul railway, influence coefficient, non-Hertz contact

CLC Number: