Modelling the effects of friction modifiers on rail corrugation in cornering

Daniel, W. J.T., Chen, C.-Y. and Meehan, P. A. (2008) Modelling the effects of friction modifiers on rail corrugation in cornering. Vehicle System Dynamics: International Journal of vehicle mechanics and mobility, 46 9: 845-866. doi:10.1080/00423110701656767


Author Daniel, W. J.T.
Chen, C.-Y.
Meehan, P. A.
Title Modelling the effects of friction modifiers on rail corrugation in cornering
Journal name Vehicle System Dynamics: International Journal of vehicle mechanics and mobility   Check publisher's open access policy
ISSN 0042-3114
Publication date 2008-01-01
Year available 2008
Sub-type Article (original research)
DOI 10.1080/00423110701656767
Open Access Status
Volume 46
Issue 9
Start page 845
End page 866
Total pages 21
Editor M. Alleyne
A. Abe
P. Iwnicki
P. Lugner
Place of publication United Kingdom
Publisher TAYLOR & FRANCIS INC, 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
Language eng
Subject C1
0913 Mechanical Engineering
970102 Expanding Knowledge in the Physical Sciences
Abstract A proposed solution to the problem of rail corrugation on curves of urban lines is the use of friction modifiers. Recent experimental research indicates this approach can be effective. This paper makes use of two theoretical models to study the effects of friction modifiers on corrugation in cornering. The first one is a nonlinear time-domain model that predicts corrugation growth from a series of simulated passes of a bogie. The second one is a frequency domain model of wheel-rail interaction, linearised about a steady cornering state, estimated from the nonlinear model. Both models predict reduction of growth of corrugation due to the use of friction modifiers. Friction modifiers can alter the steady cornering state to one with somewhat lower creeps and much lower tractions. Major reductions in corrugation growth rate have been shown to occur if a wheel can be prevented from reaching a state of full sliding when subject to oscillating creeps caused by existing rail corrugation.
Keyword friction modifiers
rail corrugation
dynamic modelling
creepage
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
School of Mechanical & Mining Engineering Publications
 
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Created: Wed, 08 Apr 2009, 02:05:00 EST by Heather Freeborn on behalf of School of Mechanical and Mining Engineering