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KŘUPKA, I. SVOBODA, P. HARTL, M.
Original Title
Effect of surface topography on mixed lubrication film formation during start up under rolling/sliding conditions
Type
journal article - other
Language
English
Original Abstract
The start up operation of mixed lubricated contacts represents one of the transient conditions that bring the risk of the surface damage because of asperities interactions. This paper focuses on the effects of both artificially produced and real roughness features on mixed lubrication film formation during start up of non-conformal contacts operated under rolling/sliding conditions. Chromatic interferograms captured during start up enabled the detailed changes in lubrication film caused by surface features to be observed. The observation of the effects of surface dents artificially produced on the ball surface helped to better understand the behaviour of real surface topography. It was found that the presence of shallow surface features can help to separate mixed lubricated rubbing surfaces more efficiently than it could be suggested from the results obtained with smooth surfaces.
Keywords
Mixed lubrication; Film thickness; Surface topography; Start up
Authors
KŘUPKA, I.; SVOBODA, P.; HARTL, M.
RIV year
2009
Released
21. 12. 2009
Publisher
Elsevier
Location
EU
ISBN
0301-679X
Periodical
Tribology International
Year of study
43
Number
4
State
United Kingdom of Great Britain and Northern Ireland
Pages from
1
Pages to
9
Pages count
BibTex
@article{BUT47123, author="Ivan {Křupka} and Petr {Svoboda} and Martin {Hartl}", title="Effect of surface topography on mixed lubrication film formation during start up under rolling/sliding conditions", journal="Tribology International", year="2009", volume="43", number="4", pages="1--9", issn="0301-679X" }