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LI, Q. WU, B. DING, H. GALAS, R. KVARDA, D. LIU, Q. ZHOU, Z. OMASTA, M. WANG, W.
Original Title
Numerical prediction on the effect of friction modifiers on adhesion behaviours in the wheel-rail starved EHL contact
Type
journal article in Web of Science
Language
English
Original Abstract
Previous third body studies for wheel/rail are mainly concentrated on water or oil condition. However, friction modifiers (FMs) represent a new approach to managing adhesion coefficient in wheel/rail interface. In this paper, the position of the FM-air meniscus was given as input parameter, the thickness of FM can be solved easily with the multi-grid method. Non-Newtonian fluid model and micro-EHL analysis combined to obtain the relation between the adhesion coefficient and the quantity of FM. The results show that the quantity of FM has a significant effect on the initial adhesion coefficient within a certain range. Besides, the initial adhesion coefficient decreases gradually until it reach stable value with the increase of the quantity of FM.
Keywords
friction modifier; applied quantity; starved EHL; wheel; rail adhesion
Authors
LI, Q.; WU, B.; DING, H.; GALAS, R.; KVARDA, D.; LIU, Q.; ZHOU, Z.; OMASTA, M.; WANG, W.
Released
8. 3. 2022
Publisher
Elsevier
Location
Nizozemsko
ISBN
0301-679X
Periodical
Tribology International
Year of study
170
Number
červen
State
United Kingdom of Great Britain and Northern Ireland
Pages from
107519
Pages to
Pages count
11
URL
https://www.sciencedirect.com/science/article/pii/S0301679X22000925
BibTex
@article{BUT179659, author="LI, Q. and WU, B. and DING, H. and GALAS, R. and KVARDA, D. and LIU, Q. and ZHOU, Z. and OMASTA, M. and WANG, W.", title="Numerical prediction on the effect of friction modifiers on adhesion behaviours in the wheel-rail starved EHL contact", journal="Tribology International", year="2022", volume="170", number="červen", pages="11", doi="10.1016/j.triboint.2022.107519", issn="0301-679X", url="https://www.sciencedirect.com/science/article/pii/S0301679X22000925" }