Effects of Vehicle and Track Key Parameters on the Rail Corrugation of High-speed Railways

doi:10.3901/JME.2018.04.057

Abstract

Abstract: Based on wheel-rail vertical dynamics, wheel-rail rolling contact theory and abrasion theory of materials, a calculation model of high speed railway rail corrugation is established and the corresponding numerical method is developed. The wheel-rail vertical dynamic model is established using the parameters of a corrugated ballastless high-speed railway. Hertz contact theory and Carter two-dimensional theoretical model of wheel-rail contact are used to calculate the wheel-rail contact force in normal and tangential directions. The wear of rail surface is determined using friction work. The development of the high-speed rail corrugation is reproduced numerically. The influence of some key parameters of high-speed vehicle and track, such as vehicle primary vertical suspension stiffness and damping, rail fastener stiffness, fastener damping and rail hardness, on the rail corrugation of high-speed railway. The results indicate that some range of the key parameters of high-speed vehicle and track will help to alleviate the development of corrugation on the high-speed railways.

Key words: ballastless track, dynamics, high-speed railways, rail corrugation, wheel-rail contact theory

CLC Number:

U213

JIANG Zhonghui, ZHAO Guotang, ZHANG Heji, WU Lei, WEN Zefeng, WANG Hengyu. Effects of Vehicle and Track Key Parameters on the Rail Corrugation of High-speed Railways[J]. Journal of Mechanical Engineering, 2018, 54(4): 57-63.

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