Chapter
Sep 21, 2015
Analysis of Heavy Hual Railway Wear on Wheel/Rail Contact Geometry
Authors: Di Li [email protected], Kai Wei [email protected], Ruiying Chen [email protected], and Yude Xu [email protected]Author Affiliations
Publication: ICTE 2015
Abstract
Nowadays railway transportation developed towards High-speed in passenger transport, heavy load in freight transport and High density in urban railway system. As a result, the rail/wheel wear become more and more serious, thus decreased the rail rigidity and changed the rail-wheel contact and impact the safety and comfort of railway transportation. In this paper, we are committed to make a precise prediction of rail wear in order to guide wheel/rail profile optimization and rail grinding cycle making by introduced a numerical model in predict of rail wear along with the passing gross weight grow. Firstly, a wheel-rail wear model based on non-Hertzian rolling contact theory and the energy dissipation principle are carried out with the help of vehicle-rail coupling dynamics software and MATLAB fixed-point iteration. Then, the wheel-rail contact geometry was calculated and the development of wear area, wear depth distribution along with the passing gross weight grow was calculated. At last, for the purpose of verifying the accuracy of the model, a comparison between the calculated results and the measured value was made. As a result of analysis the relationship between wear and passing gross weight, the impact of wear on the rail/wheel geometry is summarized.
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© 2015 American Society of Civil Engineers.
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Published online: Sep 21, 2015
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The Key Laboratory of Road and Traffic Engineering, Tongji University, 4800 Cao’an Rd., Shanghai 201804, P.R. China. E-mail: [email protected]
Shanghai Tunnel Engineering & Rail Transit Design and Research Institute, 1999 West Zhongshan Rd., Shanghai 200235, P.R. China. E-mail: [email protected]
The Key Laboratory of Road and Traffic Engineering, Tongji University, 4800 Cao’an Rd., Shanghai 201804, P.R. China. E-mail: [email protected]
The Key Laboratory of Road and Traffic Engineering, Tongji University, 4800 Cao’an Rd., Shanghai 201804, P.R. China. E-mail: [email protected]
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