Publication detail

Thin lubricating films behaviour at very high contact pressure

KŘUPKA, I. HARTL, M.

Original Title

Thin lubricating films behaviour at very high contact pressure

Type

journal article - other

Language

English

Original Abstract

Thin film colorimetric interferometry has been used to examine the behaviour of thin elastohydrodynamic (EHD) lubricant films under very high contact pressures of the order of 0.5 to 3 GPa. It has been shown that at moderate pressures, the variation of film thickness with speed follows the Hamrock and Dowson prediction down to one nanometer. As the load is increased, however, thin films behave differently from the prediction of the conventional EHD theory. For a certain lubricant and operational conditions, there is a critical rolling speed below which a reduction of film thickness is observed. This behaviour is very similar to that previously predicted computationally by Zhu.

Keywords

lubrication; film thickness

Authors

KŘUPKA, I.; HARTL, M.

RIV year

2006

Released

30. 11. 2006

Publisher

Elsevier

Location

Holandsko

ISBN

0301-679X

Periodical

Tribology International

Year of study

39

Number

12

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1726

Pages to

1731

Pages count

6

BibTex

@article{BUT43718,
  author="Ivan {Křupka} and Martin {Hartl}",
  title="Thin lubricating films behaviour at very high contact pressure",
  journal="Tribology International",
  year="2006",
  volume="39",
  number="12",
  pages="1726--1731",
  issn="0301-679X"
}