Publication detail

Analysis on the effect of starved elastohydrodynamic lubrication on the adhesion behavior and fatigue index of wheel-rail contact

LI, Q. ZHANG, S. WU, B. LIN, Q. DING, H.H. GALAS, R. KVARDA, D. OMASTA, M. WANG, W. WEN, Z.

Original Title

Analysis on the effect of starved elastohydrodynamic lubrication on the adhesion behavior and fatigue index of wheel-rail contact

Type

journal article in Web of Science

Language

English

Original Abstract

Friction modifiers (FMs) are widely used in wheel-rail applications. This paper presents a method to analyze the starved elastohydrodynamic lubrication (EHL) of the wheel-rail surface coated with FMs. Combined with rough surface simulation techniques, starved EHL analysis and film thickness analysis, the pressure distribution and adhesion coefficient under different film thickness states are obtained. The effect of film thickness of the FM supply layers and surface roughness on the adhesion coefficient is studied. The adhesion coefficient increases with the decrease in the effective FM film thickness and increase in the surface roughness. Based on the subsurface stress model, the subsurface stress distribution is studied. Then the influence of FMs on the fatigue of wheel and rail is analyzed on the basis of the shakedown map. Finally, the fatigue index of rail is explored in starved EHL state.

Keywords

Fatigue index; Friction modifiers; Shakedown map; Starved EHL; Wheel-rail adhesion

Authors

LI, Q.; ZHANG, S.; WU, B.; LIN, Q.; DING, H.H.; GALAS, R.; KVARDA, D.; OMASTA, M.; WANG, W.; WEN, Z.

Released

15. 12. 2022

Publisher

Elsevier

Location

Nizozemsko

ISBN

0043-1648

Periodical

WEAR

Year of study

510-511

Number

1

State

Swiss Confederation

Pages count

12

URL

https://www.sciencedirect.com/science/article/pii/S0043164822002630

BibTex

@article{BUT182724,
  author="LI, Q. and ZHANG, S. and WU, B. and LIN, Q. and DING, H.H. and GALAS, R. and KVARDA, D. and OMASTA, M. and WANG, W. and WEN, Z.",
  title="Analysis on the effect of starved elastohydrodynamic lubrication on the adhesion behavior and fatigue index of wheel-rail contact",
  journal="WEAR",
  year="2022",
  volume="510-511",
  number="1",
  pages="12",
  doi="10.1016/j.wear.2022.204506",
  issn="0043-1648",
  url="https://www.sciencedirect.com/science/article/pii/S0043164822002630"
}