The effect of track irregularity and wheel load on the dynamic response of a high-speed rail system

Tran Minh Thi; Kok K Ang; Luong Van Hai

3 (1) 2013

The effect of track irregularity and wheel load on the dynamic response of a high-speed rail system

Author - Affiliation:

Tran Minh Thi - Department of Civil Engineering, National University of Singapore , Vietnam

Kok K Ang - Department of Civil Engineering, National University of Singapore

Luong Van Hai - Faculty of Civil Engineering, Ho Chi Minh City University of Technology, VNU HCMC , Vietnam

Corresponding author: Luong Van Hai - ceeangkk@nus.edu.sg

Abstract

In this paper, a computational study using the moving element method (MEM) was carried out to investigate the dynamic response of a high-speed rail (HSR). A new formulation for calculating the structural matrices of the moving element is proposed. Two wheel-rail contact problems will be examined. One is linear and the other nonlinear. A parametric study is carried out to understand the effects of various factors on the response of the train-track system such as the severity of railhead roughness and the wheel load. In particular, the effect of above factors on the occurrence of the jumping wheel phenomenon, which occurs when there is a momentary loss of contact between the wheel and track, is considered.

Keywords

Moving element method; constant and varying velocities; wheel-rail interaction; track irregularity.

Full Text:

PDF

References

S. Timoshenko, D. H. Young, W. Jr. Weaver, Vibration Problems in Engineering, 4th ed., John Wiley, New York, 1974.

P. M. Mathews, Vibrations of a beam on elastic foundation, Journal of Applied Mathematics and Mechanics, 38 (1958) 105-115.

L. Jezequel, Response of Periodic Systems to a Moving Load, Journal of Applied Mechanics 48 (1981) 613-618.

F. V. Filho, Finite element analysis of structures under moving loads, Shock and Vibration Digest 10 (1978) 27-35.

J. Hino, T. Yoshimura, N. Ananthanarayana, Vibration analysis of non-linear beams subjected to a moving load using the finite element method, Journal of Sound and Vibration 100 (4) (1985) 477-491.

M. Olsson, Finite element, modal co-ordinate analysis of structures subjected to moving loads, Journal of Sound and Vibration 99 (1) (1985) 1-12.

S.-I. Suzuki, Dynamic behavior of a finite beam subjected to travelling loads with acceleration, Journal of Sound and Vibration 55(1) (1977), 65–70.

D. Yadav, Non-stationary dynamics of train and flexible track over inertial foundation during variable velocity, Journal of Sound and Vibration 147(1) (1991), 57–71.

Anders Karlstrom, An analytical model for ground vibrations from accelerating trains, Journal of Sound and Vibration 293 (2006), 587–598.

S. Krenk, L. Kellezi, S. R. K. Nielsen and P. H. Kirkegaard, Finite elements and transmitting boundary conditions for moving loads, Proceedings of the 4th European Conference on Structural Dynamics, Eurodyn ‘99, Praha, June 7-1, Vol. 1 (1999) 447-452

L. Andersen, S. R. K. Nielsen and P. H. Kirkegaard, Finite element modelling of infinite Euler beams on Kelvin foundations exposed to moving loads in convected co-ordinates, Journal of Sound and Vibration 241 (4) (2001) 587-604.

C.G. Koh, J.S.Y. Ong, D.K.H. Chua, J. Feng, Moving Element for Train-Track Dynamics, International Journal for Numerical Methods in Engineering 56 (2003), 1549-1567.

C.G. Koh, P.P. Sze, T.T. Deng, Numerical and analytical methods for in-plane dynamic response of annular disk, International Journal of Solids and Structures 43 (2006) 112-131.

C.G. Koh, G.H. Chiew, C.C. Lim, J. A numerical method for moving load on continuum, Journal of Sound and Vibration 300 (2007), 126-138.

Ang Kok Keng, Dai Jian, Tran Minh Thi, Analysis of high-speed rail accounting for jumping wheel phenomenon, The International Conference on Advances in Computational Mechanics (ACOME), August 14-16, 2012, Ho Chi Minh City, Vietnam.

Nielsen, J. C. O. and Abrahamsson, T. J. S, Coupling of physical and modal components for analysis of moving non-linear dynamic systems on general beam structures, International Journal for Numerical Methods in Engineering 33 (1992), 1843-1859

C. Esveld, Modern Railway Track (2nd Edition). MRT Productions: Duisburg, 2001.

Bathe, K. J., Finite Element Procedures, Prentice-Hall, Englewood Cliffs, N.J. (1996).

S. G. Newton, R. A. Clark, An investigation into the dynamic effects on the track of wheel flats on railway vehicles, Journal Mechanical Engineering Science 21 (1979) 287-297.

S.H. Ju, J.R. Liao, Error study of rail/wheel point contact method for moving trains with rail roughness, Computers and Structures 88 (2010) 813–824.

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.