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KŘUPKA, I.; HARTL, M.
Originální název
Effect of Surface Texturing on Very Thin Film EHD Lubricated Contacts
Anglický název
Druh
Článek recenzovaný mimo WoS a Scopus
Originální abstrakt
Micro-dents of various depths and shapes have been produced on rubbing surfaces to find out whether there could be some operational conditions suitable for surface texturing applications in highly loaded non-conformal contacts. The significant effect of the size and shape of the micro-dents has been observed as a function of the slide-to-roll ratio. Shallow micro-features within concentrated contact were found to increase the film thickness by supplying more lubricant to the contact under rolling/sliding conditions. However, in many cases this effect was accompanied with local film thickness reduction that even caused lubrication film breakdown under thin film lubrication conditions. Longitudinally and transversely oriented short grooves were found not to be completely suitable for the surface texturing applications from this point of view. Conversely, small circular micro-dents seem to be more promising as to their use to help to separate rubbing surfaces when a micro-textured surface is moving faster than a non-textured one and the lubrication films become very thin. Nevertheless, it would require a well-balanced design, taking into account many factors as the lubrication regime, the slide-to-roll ratio conditions, the rolling contact fatigue, the technology of surface texturing patterns creation, etc.
Anglický abstrakt
Klíčová slova
Elastohydrodynamic Lubrication; Film Thickness; Surface Texturing
Klíčová slova v angličtině
Autoři
Rok RIV
2010
Vydáno
21.01.2009
Nakladatel
Taylor Francis
Místo
Londýn
ISSN
1040-2004
Periodikum
TRIBOLOGY TRANSACTIONS
Svazek
52
Číslo
1
Stát
Spojené státy americké
Strany od
21
Strany do
28
Strany počet
8
BibTex
@article{BUT47938, author="Ivan {Křupka} and Martin {Hartl}", title="Effect of Surface Texturing on Very Thin Film EHD Lubricated Contacts", journal="TRIBOLOGY TRANSACTIONS", year="2009", volume="52", number="1", pages="21--28", issn="1040-2004" }