Publication result 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
English Title
Thin lubricating films behaviour at very high contact pressure
Type
Peer-reviewed article not indexed in WoS or Scopus
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.
English 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
Key words in English
lubrication; film thickness
Authors
KŘUPKA, I.; HARTL, M.
Released
30.11.2006
Publisher
Elsevier
Location
Holandsko
ISBN
0301-679X
Periodical
Tribology International
Volume
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"
}