Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33489
Title: Interaction of railway vehicles with track in cross-winds
Authors: Xu, YL 
Ding, QS
Keywords: Cross-wind
Railway vehicles
Safety
Simulation
Vehicle-track interaction
Issue Date: 2006
Publisher: Academic Press
Source: Journal of fluids and structures, 2006, v. 22, no. 3, p. 295-314 How to cite?
Journal: Journal of fluids and structures 
Abstract: This paper presents a framework for simulating railway vehicle and track interaction in cross-wind. Each 4-axle vehicle in a train is modeled by a 27-degree-of-freedom dynamic system. Two parallel rails of a track are modeled as two continuous beams supported by a discrete-elastic foundation of three layers with sleepers and ballasts included. The vehicle subsystem and the track subsystem are coupled through contacts between wheels and rails based on contact theory. Vertical and lateral rail irregularities simulated using an inverse Fourier transform are also taken into consideration. The simulation of steady and unsteady aerodynamic forces on a moving railway vehicle in cross-wind is then discussed in the time domain. The Hilber-Hughes-Taylor α-method is employed to solve the nonlinear equations of motion of coupled vehicle and track systems in cross-wind. The proposed framework is finally applied to a railway vehicle running on a straight track substructure in cross-wind. The safety and comfort performance of the moving vehicle in cross-wind are discussed. The results demonstrate that the proposed framework and the associated computer program can be used to investigate interaction problems of railway vehicles with track in cross-wind.
URI: http://hdl.handle.net/10397/33489
ISSN: 0889-9746
EISSN: 1095-8622
DOI: 10.1016/j.jfluidstructs.2005.11.003
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