Adhesion Conditions under the Influence of Solid Flange Lubricants – Full-Scale Roller Rig Tests
Article Sidebar
Main Article Content
Abstract
Small-scale laboratory equipment with balls or discs representing the wheels and rails is often used in the development and testing of lubricants for the wheel–rail interface. Such devices are suitable, even necessary, for any standard test methodology, but they may not accurately represent all the conditions of actual wheel–rail contact; special test equipment of a larger scale can get closer to reality. This paper presents findings on the influence of flange lubricants on adhesion conditions, as they can be investigated on a full-scale roller rig. Adhesion characteristics (traction curves) are used for the evaluation, describing the adhesion conditions in greater completeness than just the time histories of the coefficient of friction at constant slip.
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
Accepted 2025-07-15
Published 2025-09-17
References
BUCKLEY-JOHNSTONE, L. E. et al. Full-scale testing of low adhesion effects with small amounts of water in the wheel/rail interface. Online. Tribology International. Vol. 141 (2020), article 105907. ISSN 0301-679X. Dostupné z: https://doi.org/10.1016/j.triboint.2019.105907. [citováno 2025-05-19]
TRUMMER, G. et al. Wheel-rail creep force model for predicting water induced low adhesion phenomena. Online. Tribology International. Vol. 109 (2017), s. 409–415. ISSN 0301-679X. Dostupné z: https://doi.org/10.1016/j.triboint.2016.12.056. [citováno 2025-05-19]
LEWIS, R. et al. Leaves on the line: Characterising leaf based low adhesion on railway rails. Online. Tribology International. Vol. 185 (2023), article 108529. ISSN 0301-679X. Dostupné z: https://doi.org/10.1016/j.triboint.2023.108529. [citováno 2025-05-19]
GALAS, R. et al. Laboratory investigation of ability of oil-based friction modifiers to control adhesion at wheel-rail interface. Online. Wear. Vol. 368–369 (2016), s. 230–238. ISSN 0043-1648. Dostupné z: https://doi.org/10.1016/j.wear.2016.09.015. [citováno 2025-05-21]
STOCK, R. et al. Material concepts for top of rail friction management – Classification, characterisation and application. Online. Wear. Vol. 366–367 (2016), s. 225–232. ISSN 0043-1648. Dostupné z: https://doi.org/10.1016/j.wear.2016.05.028. [citováno 2025-05-21]
FASIHI, P. et al. Effect of graphite and MoS2 based solid lubricants for application at wheel-rail interface on the wear mechanism and surface morphology of hypereutectoid rails. Online. Tribology International. Vol. 157 (2021), article 106886. ISSN 0301-679X. Dostupné z: https://doi.org/10.1016/j.triboint.2021.106886. [citováno 2025-05-21]
REY, T., PAPIN, E., FRIDRICI, V., DASSENOY, F. Experimental study of the tribological performance of a solid lubricant stick with MoS2 for wheel-rail contact. Online. Wear. Vol. 570 (2025), article 205941. ISSN 0043-1648. Dostupné z: https://doi.org/10.1016/j.wear.2025.205941. [citováno 2025-05-21]
ČSN EN 15427-2-1:2022. Železniční aplikace – Řízení tření mezi kolem a kolejnicí – Část 2-1: Vlastnosti a charakteristiky – Maziva okolku.
VOLTR, P., LIBEROVÁ, S. Faktory ovlivňující hodnocení výkonnosti tuhých maziv pro kontakt kolo–kolejnice. In: Současné problémy v kolejových vozidlech: XXV. konference s mezinárodní účastí, sborník příspěvků. Pardubice: Univerzita Pardubice, 2021, s. 391–398. ISBN 978-80-7560-377-7.
BÍLEK, A. Hodnocení tuhých maziv pro kontakt kolo–kolejnice s využitím kladkového stavu. Diplomová práce. Pardubice: Univerzita Pardubice, DFJP, 2024. Dostupné z: https://hdl.handle.net/10195/84128. [citováno 2025-05-21]
VOLTR, P., LATA, M. Transient wheel–rail adhesion characteristics under the cleaning effect of sliding. Online. Vehicle System Dynamics. Vol 53 (2015), no. 5, s. 605–618. ISSN 0042-3114. Dostupné z: https://doi.org/10.1080/00423114.2014.961488. [citováno 2025-06-02]
VOLTR, P., ZIREK, A., KAYAALP, B. T. Nové zkušenosti a poznatky z experimentálního měření adheze na zkušebním stavu. In: Současné problémy v kolejových vozidlech: XXIII. konference s mezinárodní účastí, sborník příspěvků. Pardubice: DFJP Univerzity Pardubice, 2017, s. 423–432. ISBN 978-80-7560-085-1.
NAVRÁTIL, V. et al. Wheel Squeal Mitigation Under Water Lubrication. Online. Tribology in Industry. Vol. 46 (2024), no. 3, s. 418–431. ISSN 2217-7965. Dostupné z: https://doi.org/10.24874/ti.1579.11.23.01. [citováno 2025-06-02]