Publication detail

Influence of Contact Pressure on Central and Minimum Film Thickness Within Ultrathin Film Lubricated Contacts

KŘUPKA, I., HARTL, M., LIŠKA, M.

Original Title

Type

journal article - other

Language

English

Original Abstract

Recent numerical results have indicated that the relationship between the film thickness and the speed may not always follow the simple power law, especially under severe conditions. This paper is aimed at obtaining experimental results at high contact stresses and low speeds to study the thin film behavior. Ultra-thin lubricant films were observed at maximum Hertz pressures of 0.52, 1.01 and 1.54 GPa by using an optical test rig. Central and minimum film thickness values were obtained with thin film colorimetric interferometry from chromatic interferograms. The non-linear behavior of both central and minimum film thicknesses in log-log coordinates was observed as rolling speed and thereby film thickness decreased. This tendency became more obvious at higher contact pressures.

Key words in English

lubrication, high pressure, film thickness

Authors

KŘUPKA, I., HARTL, M., LIŠKA, M.

RIV year

2005

Released

1. 7. 2005

ISBN

0742-4787

Periodical

ASME Transaction, Journal of Tribology

Year of study

127

Number

State

United States of America

Pages from

890

Pages to

892

Pages count

BibTex

@article{BUT42820,
  author="Ivan {Křupka} and Martin {Hartl} and Miroslav {Liška}",
  title="Influence of Contact Pressure on Central and Minimum Film Thickness Within Ultrathin Film Lubricated Contacts",
  journal="ASME Transaction, Journal of Tribology",
  year="2005",
  volume="127",
  number="4",
  pages="3",
  issn="0742-4787"
}