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Civil-Comp Conferences
ISSN 2753-3239
CCC: 1
PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE
Edited by: J. Pombo
Paper 21.5

Prediction of wheel wear using Hertzian and non-Hertzian contact models

F. Alves1, H. Magalhães1, J. Pagaimo1, J.N. Costa1, F. Marques2,3, J. Pombo1,4,5 and J. Ambrósio1

1IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
2CMEMS-UMinho, Departamento de Engenharia Mecânica, Universidade do Minho, Guimarães, Portugal
3LABBELS – Associate Laboratory, Braga/Guimarães, Portugal
4Institute of Railway Research, School of Computing and Engineering, University of Huddersfield, Huddersfield, UK
5ISEL, Instituto Politécnico de Lisboa, Lisboa, Portugal

Full Bibliographic Reference for this paper
F. Alves, H. Magalhães, J. Pagaimo, J.N. Costa, F. Marques, J. Pombo, J. Ambrósio, "Prediction of wheel wear using Hertzian and non-Hertzian contact models", in J. Pombo, (Editor), "Proceedings of the Fifth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 1, Paper 21.5, 2022, doi:10.4203/ccc.1.21.5
Keywords: wear prediction, wheel-rail Contact, non-Hertzian contact, multibody dynamics.

Abstract
Railway vehicles are periodically immobilized for wheel replacement or reprofiling once they reach the wear limits established by standards. Enhancing wheel designs and operating conditions may reduce wheel wear, saving high maintenance costs. Multibody simulations are useful to predict wheel wear evolution because they allow comparing different wheel-rail contact models. In this context, this work describes in detail a wear prediction tool that addresses parameters that the current literature often omits. The wear prediction tool is used to perform wheel wear analysis where both Hertzian and non-Hertzian contact models are utilised and compared to each other, contributing to the small literature body covering non-Hertzian contact model and wear prediction.

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