Publication result detail

The Effect of Load (Pressure) for Quantitative EHL Film Thickness

KŘUPKA, I.; HARTL, M.; BAIR, S.; KUMAR, P.; KHONSARI, M.M.

Original Title

The Effect of Load (Pressure) for Quantitative EHL Film Thickness

English Title

The Effect of Load (Pressure) for Quantitative EHL Film Thickness

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

New quantitative numerical simulations of the elastohydrodynamic lubrication (EHL) film thickness using realistic pressure and shear-dependent rheology and realistic compressibility have indicated that the dependence of central film thickness upon Hertz pressure (or load) for the classic Newtonian, slightly compressible solution is merely a lower limit with magnitudes three times as great being possible. Experimental measurements of central film thickness employing Hertz pressures from 1.0 to 2.6 GPa confirm that for a neat mineral oil, the classical pressure dependence is accurate, while for two gear oils the experimental pressure dependence is much larger.

English abstract

New quantitative numerical simulations of the elastohydrodynamic lubrication (EHL) film thickness using realistic pressure and shear-dependent rheology and realistic compressibility have indicated that the dependence of central film thickness upon Hertz pressure (or load) for the classic Newtonian, slightly compressible solution is merely a lower limit with magnitudes three times as great being possible. Experimental measurements of central film thickness employing Hertz pressures from 1.0 to 2.6 GPa confirm that for a neat mineral oil, the classical pressure dependence is accurate, while for two gear oils the experimental pressure dependence is much larger.

Keywords

Elastohydrodynamic; Film thickness; EHL; Rheology; Compressibility

Key words in English

Elastohydrodynamic; Film thickness; EHL; Rheology; Compressibility

Authors

KŘUPKA, I.; HARTL, M.; BAIR, S.; KUMAR, P.; KHONSARI, M.M.

RIV year

2010

Released

19.12.2009

Publisher

Springer

ISBN

1023-8883

Periodical

TRIBOLOGY LETTERS

Volume

34

Number

X

State

United States of America

Pages from

1

Pages to

10

Pages count

10

BibTex

@article{BUT47124,
  author="Ivan {Křupka} and Martin {Hartl}",
  title="The Effect of Load (Pressure) for Quantitative EHL Film Thickness",
  journal="TRIBOLOGY LETTERS",
  year="2009",
  volume="34",
  number="X",
  pages="1--10",
  issn="1023-8883"
}