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ESTIMATION OF SURFACE TRACTION AT HIGH CREEPAGES AND ITS APPLICATION TO PREDICTION OF WEAR, RCF AND CURVE SQUEAL NOISE
KTH, School of Engineering Sciences (SCI), Engineering Mechanics, Vehicle Engineering and Solid Mechanics.
KTH, School of Engineering Sciences (SCI), Engineering Mechanics, Vehicle Engineering and Solid Mechanics.ORCID iD: 0000-0002-6346-6620
KTH, School of Engineering Sciences (SCI), Engineering Mechanics, Vehicle Engineering and Solid Mechanics.ORCID iD: 0000-0003-1583-4625
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.ORCID iD: 0000-0002-2571-4662
2022 (English)In: CM 2022: 12th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, Conference Proceedings, International Conference on Contact Mechanics of Wheel / Rail Systems , 2022, p. 484-490Conference paper, Published paper (Refereed)
Abstract [en]

The friction coefficient in the calculation of surface traction between wheel and rail is often considered to be constant. However, the true friction coefficient starts to fall as passing from adhesion area to slip area. Inclusion of such behaviour in the estimation of tractions on the contact patch can make the calculations more accurate. In the presented work, the slip dependent coefficient of friction is implemented in the tangential contact solution by using ‘Friction Memory’ concept [1] and the effect of such consideration on the prediction of wear and rolling contact fatigue (RCF) is analysed. Furthermore, an on-set curve squeal noise detection technique has been proposed.

Place, publisher, year, edition, pages
International Conference on Contact Mechanics of Wheel / Rail Systems , 2022. p. 484-490
Keywords [en]
curve squeal noise, falling friction, friction memory, RCF, wear, Wheel-rail contact
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear) Vehicle Engineering
Identifiers
URN: urn:nbn:se:kth:diva-333401Scopus ID: 2-s2.0-85149169107OAI: oai:DiVA.org:kth-333401DiVA, id: diva2:1785107
Conference
12th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, CM 2022, Melbourne, Australia, Sep 4 2022 - Sep 7 2022
Note

Part of ISBN 9780646865881

QC 20230801

Available from: 2023-08-01 Created: 2023-08-01 Last updated: 2023-09-06Bibliographically approved

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Khoramzad, ElhamHossein Nia, SaeedCasanueva, CarlosBerg, Mats

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Khoramzad, ElhamHossein Nia, SaeedCasanueva, CarlosBerg, Mats
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Vehicle Engineering and Solid MechanicsAeronautical and Vehicle Engineering
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)Vehicle Engineering

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