Detail publikačního výsledku

The effect of surface grooves on transition to mixed lubrication

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

Originální název

The effect of surface grooves on transition to mixed lubrication

Anglický název

The effect of surface grooves on transition to mixed lubrication

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

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

Klíčová slova v angličtině

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

Autoři

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

Rok RIV

2018

Vydáno

31.10.2017

Nakladatel

Tribology International

ISSN

0301-679X

Periodikum

Tribology International

Svazek

114

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

409

Strany do

417

Strany počet

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"
}

Dokumenty

2017_Zapletal_The effect of surface grooves on transition to mixed lubrication