Publication detail

The effect of surface grooves on transition to mixed lubrication

ZAPLETAL, T. ŠPERKA, P. KŘUPKA, I. HARTL, M.

Original Title

The effect of surface grooves on transition to mixed lubrication

Type

journal article in Web of Science

Language

English

Original Abstract

The purpose of this study is to describe the influence of artificially produced surface grooves longer than a diameter of the contact area on the transition from a full EHL regime to mixed lubrication in the point contact using optical interferometry. This article focuses on the influences of grooves orientation, length in the contact area, elastic modulus of contact surfaces, and different types of lubricants defined by pressure-viscosity coefficient. An empirical prediction model of groove influence on film thickness was established based on experimental data. The groove influence was incorporated into lubrication parameter. This modified definition was compared with the classic one. It showed that avoiding the groove influence leads to a significant underestimation.

Keywords

Elastohydrodynamic lubrication; Mixed lubrication; Lubrication parameter; Surface roughness; Groove

Authors

ZAPLETAL, T.; ŠPERKA, P.; KŘUPKA, I.; HARTL, M.

Released

31. 10. 2017

Publisher

Tribology International

ISBN

0301-679X

Periodical

Tribology International

Year of study

114

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

409

Pages to

417

Pages count

8

URL

https://doi.org/10.1016/j.triboint.2017.04.048

BibTex

@article{BUT135840,
  author="Tomáš {Zapletal} and Petr {Šperka} and Ivan {Křupka} and Martin {Hartl}",
  title="The effect of surface grooves on transition to mixed lubrication",
  journal="Tribology International",
  year="2017",
  volume="114",
  number="1",
  pages="409--417",
  doi="10.1016/j.triboint.2017.04.048",
  issn="0301-679X",
  url="https://doi.org/10.1016/j.triboint.2017.04.048"
}