Coupling Dynamic Analysis of Floating Slab Track in the Urban Rail Transit

Abstract:

In order to study how the parameters of floating slab track and the speed of the train influence the vehicle-track coupling system，the paper built the vehicle-track coupling dynamic system. In the coupling model, the train is simplified a multi-rigid body system. The rail and the floating slab are considered as Euler beam. The wheel-rail relation is regarded as non-linear Hertz contact. The paper solved the dynamic equation of the vehicle-track coupling dynamic system with prediction-correction Newmark-β numerical integration method. Through numerical simulation, the paper gained the affect of fastener stiffness, slab support stiffness, and the speed of train to the characteristic of the coupling system containing the vehicle acceleration, wheel-rail force, the vibration of the track and the counter-force from the basis. The paper provides a reference for the selection of the track parameters and the speed of vehicle.

• Periodical: Applied Mechanics and Materials (Volumes 253-255)
• Pages: 2047-2051
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.253-255.2047
• Online since: December 2012
• Authors: Kai Huang, Hong Bai Bai, Dong Wei Li, Yu Long Li
• Keywords: Coupling, Dynamic Analysis, Floating Slab Track, Numerical Simulation

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DOI: 10.1016/s0003-682x(00)00014-1

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