Publication result detail

Numerical prediction on the effect of friction modifiers on adhesion behaviours in the wheel-rail starved EHL contact

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

English Title

Numerical prediction on the effect of friction modifiers on adhesion behaviours in the wheel-rail starved EHL contact

Type

WoS Article

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.

English 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

Key words in English

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.

RIV year

2023

Released

08.03.2022

Publisher

Elsevier

Location

Nizozemsko

ISBN

0301-679X

Periodical

Tribology International

Volume

170

Number

červen

State

United Kingdom of Great Britain and Northern Ireland

Pages from

107519

Pages to

107519

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="107519--107519",
  doi="10.1016/j.triboint.2022.107519",
  issn="0301-679X",
  url="https://www.sciencedirect.com/science/article/pii/S0301679X22000925"
}