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ŠPERKA, P. KŘUPKA, I. HARTL, M.
Original Title
Experimental study of real roughness attenuation in concentrated contacts
Type
journal article - other
Language
English
Original Abstract
The understanding of the processes involved in the in-contact deformation of surface roughness represents one of key factors in increasing lubrication capabilities of highly loaded machine components. Two main approaches have been developed in an effort to understand the changes of initial surface topography within highly loaded contacts to provide detailed information about lubrication film thickness and pressure distribution in the vicinity of roughness features. The first approach considers the real surface topography while the other uses the simplified topography features. Numerical solutions based on measured topography data can provide the film thickness and pressure distribution around asperities of realistic scale; nevertheless, obtained results are typically limited to the specific topography configuration measured from a very small area of rubbing surface. That is why some researchers have considered harmonic features of various wavelength and amplitudes to explain the behaviour of real roughness.
Keywords
elastohydrodynamic lubrication; roughness; amplitude reduction
Authors
ŠPERKA, P.; KŘUPKA, I.; HARTL, M.
RIV year
2009
Released
8. 12. 2009
Publisher
Elsevier
Location
EU
ISBN
0301-679X
Periodical
Tribology International
Year of study
42
Number
12
State
United Kingdom of Great Britain and Northern Ireland
Pages from
1
Pages to
9
Pages count
BibTex
@article{BUT46830, author="Petr {Šperka} and Ivan {Křupka} and Martin {Hartl}", title="Experimental study of real roughness attenuation in concentrated contacts", journal="Tribology International", year="2009", volume="42", number="12", pages="1--9", issn="0301-679X" }