Shear properties of top-of-rail products in numerical modelling

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Shear properties of top-of-rail products in numerical modelling

Kvarda, Daniel / Galas, Radovan / Omasta, Milan / Hartl, Martin / Krupka, Ivan / Dzimko, Marian

Top-of-rail product assessment in terms of frictional properties plays a key role in the evaluation of desired benefits for wheel-rail contact. In this study, a high-pressure torsion device is used to study the friction-displacement properties of three types of top-of-rail products. The effects of applied amount and increased temperature were investigated. All tested products were very sensitive to the amount applied. For the water-based substance, the evaporation of water created a solid-like film that provided very low friction. The increase in temperature lowered the coefficient of friction for dry contact but had a negligible effect on the applied products. A FASTSIM-based numerical model is used to demonstrate the application of these results.

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Dokumentinformationen

Titel :

Shear properties of top-of-rail products in numerical modelling

Beteiligte:

Kvarda, Daniel (Autor:in) / Galas, Radovan (Autor:in) / Omasta, Milan (Autor:in) / Hartl, Martin (Autor:in) / Krupka, Ivan (Autor:in) / Dzimko, Marian (Autor:in)

Erschienen in:

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit ; 237 , 6 ; 796-805

Erscheinungsdatum :

2023-07-01

Format / Umfang :

10 pages

ISSN :

0954-4097 , 2041-3017

DOI :

https://doi.org/10.1177/09544097221138374

Medientyp :

Aufsatz (Zeitschrift)