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Research Article | Open Access

Testing and modelling of transient adhesion phenomena in rolling–sliding contacts

Daniel KVARDA1( ), Alexander MEIERHOFER2, Klaus SIX2
Faculty of Mechanical Engineering, Brno University of Technology, Brno 616 69, Czech Republic
Virtual Vehicle Research GmbH, Graz 8010, Austria
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An erratum to this article is available online at:
https://doi.org/10.1007/s40544-024-0913-4

Graphical Abstract

Abstract

Transient adhesion effects in rolling–sliding contacts influence all aspects of train–track interaction. This is of high importance specifically when these effects result in critically low adhesion, which poses a risk to traction and braking of railway vehicles. This study presents a model that can replicate the transient changes of the coefficient of adhesion with tested water and solid particle mix. The experimental data for the model are measured using a commercial ball-on-disc tribometer. The experimental results showed a liquid reservoir in front of the contact area that slowly reduces in size. This observation was used in the modelling approach to divide the calculation into two stages where the reservoir is present and when it disappears. The model was able to reproduce the occurrence of low adhesion region seen in experimental results with different particle concentrations.

Keywords

tribologycoefficient of adhesiontransient effectswheel–rail contact

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Friction
Volume 12 Issue 5,
May 2024
Pages 1016-1027
DOI: 10.1007/s40544-023-0825-8
Cite this article:
KVARDA D, MEIERHOFER A, SIX K. Testing and modelling of transient adhesion phenomena in rolling–sliding contacts. Friction, 2024, 12(5): 1016-1027. https://doi.org/10.1007/s40544-023-0825-8

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Received: 26 April 2023
Revised: 28 July 2023
Accepted: 09 September 2023
Published: 15 December 2023
© The author(s) 2023.

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