Error study of rail/wheel point contact method for moving trains with rail roughness

Shen-Haw Ju; J. R. Liao

doi:10.1016/j.compstruc.2010.04.001

Error study of rail/wheel point contact method for moving trains with rail roughness

Shen-Haw Ju, J. R. Liao

Department of Civil Engineering

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

This study investigates the accuracy of the point contact scheme for trains moving on rails with irregularities. The advantages of this scheme are that it requires only linear analysis, a coarse mesh, and low CPU time. Two validations were performed. The first one compared this method with the surface contact method that models the actual wheel-rail contact behavior. Finite element results indicate that the two schemes almost produce identical results. The second validation used field measurements to study the accuracy of the point contact scheme applied to train-rail-bridge problems. The comparison indicates that finite element analyses are acceptably accurate.

Original language	English
Pages (from-to)	813-824
Number of pages	12
Journal	Computers and Structures
Volume	88
Issue number	13-14
DOIs	https://doi.org/10.1016/j.compstruc.2010.04.001
Publication status	Published - 2010 Jul 1

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Modelling and Simulation
Materials Science(all)
Mechanical Engineering
Computer Science Applications

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10.1016/j.compstruc.2010.04.001

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AB - This study investigates the accuracy of the point contact scheme for trains moving on rails with irregularities. The advantages of this scheme are that it requires only linear analysis, a coarse mesh, and low CPU time. Two validations were performed. The first one compared this method with the surface contact method that models the actual wheel-rail contact behavior. Finite element results indicate that the two schemes almost produce identical results. The second validation used field measurements to study the accuracy of the point contact scheme applied to train-rail-bridge problems. The comparison indicates that finite element analyses are acceptably accurate.

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Error study of rail/wheel point contact method for moving trains with rail roughness

Abstract

All Science Journal Classification (ASJC) codes

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