Detail publikace
Shear properties of top-of-rail products in numerical modelling
KVARDA, D. GALAS, R. OMASTA, M. KŘUPKA, I. HARTL, M. DZIMKO, M.
Anglický název
Shear properties of top-of-rail products in numerical modelling
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
en
Originální abstrakt
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.
Anglický abstrakt
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.
Klíčová slova anglicky
Adhesion coefficient; top-of-rail product; friction; rail-wheel tribology; adhesion model
Vydáno
01.07.2023
Nakladatel
SAGE PUBLICATIONS LTD
Místo
London, United Kingdom
ISSN
0954-4097
Ročník
237
Číslo
6
Strany od–do
796–805
Počet stran
10
BIBTEX
@article{BUT179957,
author="Daniel {Kvarda} and Radovan {Galas} and Milan {Omasta} and Ivan {Křupka} and Martin {Hartl} and Marián {Dzimko},
title="Shear properties of top-of-rail products in numerical modelling",
year="2023",
volume="237",
number="6",
month="July",
pages="796--805",
publisher="SAGE PUBLICATIONS LTD",
address="London, United Kingdom",
issn="0954-4097"
}