A dynamic wheel-rail impact analysis of railway track under wheel flat by Finite Element Analysis

Bian, Jian, Gu, Yuantong, & Murray, Martin Howard (2013) A dynamic wheel-rail impact analysis of railway track under wheel flat by Finite Element Analysis. Vehicle System Dynamics, 51(6), pp. 784-797.

View at publisher

Abstract

Wheel–rail interaction is one of the most important research topics in railway engineering. It involves track impact response, track vibration and track safety. Track structure failures caused by wheel–rail impact forces can lead to significant economic loss for track owners through damage to rails and to the sleepers beneath. Wheel–rail impact forces occur because of imperfections in the wheels or rails such as wheel flats, irregular wheel profiles, rail corrugations and differences in the heights of rails connected at a welded joint. A wheel flat can cause a large dynamic impact force as well as a forced vibration with a high frequency, which can cause damage to the track structure. In the present work, a three-dimensional (3-D) finite element (FE) model for the impact analysis induced by the wheel flat is developed by use of the finite element analysis (FEA) software package ANSYS and validated by another validated simulation. The effect of wheel flats on impact forces is thoroughly investigated. It is found that the presence of a wheel flat will significantly increase the dynamic impact force on both rail and sleeper. The impact force will monotonically increase with the size of wheel flats. The relationships between the impact force and the wheel flat size are explored from this finite element analysis and they are important for track engineers to improve their understanding of the design and maintenance of the track system.

Impact and interest:

13 citations in Scopus
Search Google Scholar™
7 citations in Web of Science®

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

Full-text downloads:

241 since deposited on 30 Jan 2013
62 in the past twelve months

Full-text downloads displays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.

ID Code: 56693
Item Type: Journal Article
Refereed: Yes
Keywords: wheel-rail foce, impact analysis, finite element, wheel flat, sleeper and vibration frequency
DOI: 10.1080/00423114.2013.774031
ISSN: 1744-5159
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 Taylor & Francis Group
Copyright Statement: This is an Author's Original Manuscript of an article whose final and definitive form, the Version of Record, has been published in the journal Vehicle System Dynamics, 4th March 2013, copyright Taylor & Francis, available online at: http://www.tandfonline.com/10.1080/00423114.2013.774031
Deposited On: 30 Jan 2013 04:32
Last Modified: 13 Dec 2015 00:43

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page