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Integrating Dynamics and Wear Modelling to Predict Railway Wheel Profile Evolution

Lewis, R., Braghin, F., Ward, A., Bruni, S., Dwyer-Joyce, R.S., Bel Knani, K. and Bologna, P. (2003) Integrating Dynamics and Wear Modelling to Predict Railway Wheel Profile Evolution. In: Ekberg, A., Kabo, E. and Ringsberg, J., (eds.) 6th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems : CM2003. CHARMEC , Gothenburg , pp. 7-16. ISBN 9163139286

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Abstract

The aim of the work described was to predict wheel profile evolution by integrating multi-body dynamics simulations of a wheelset with a wear model.

The wear modelling approach is based on a wear index commonly used in rail wear predictions. This assumes wear is proportional to Tγ, where T is tractive force and γ is slip at the wheel/rail interface. Twin disc testing of rail and wheel materials was carried out to generate wear coefficients for use in the model.

The modelling code is interfaced with ADAMS/Rail, which produces multi-body dynamics simulations of a railway wheelset and contact conditions at the wheel/rail interface. Simplified theory of rolling contact is used to discretise the contact patches produced by ADAMS/Rail and calculate traction and slip within each.

The wear model combines the simplified theory of rolling contact, ADAMS/Rail output and the wear coefficients to predict the wear and hence the change of wheel profile for given track layouts.

Item Type: Book Section
Institution: The University of Sheffield
Academic Units: The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Mechanical Engineering (Sheffield)
Depositing User: Repository Officer
Date Deposited: 12 Dec 2005
Last Modified: 05 Jun 2014 19:38
Status: Published
Publisher: CHARMEC
Refereed: Yes
URI: http://eprints.whiterose.ac.uk/id/eprint/880

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