Detail publikace
Experimental Study of Roughness Effect in a Rolling–Sliding EHL Contact. Part I: Roughness Deformation
ŠPERKA, P. KŘUPKA, I. HARTL, M.
Anglický název
Experimental Study of Roughness Effect in a Rolling–Sliding EHL Contact. Part I: Roughness Deformation
Typ
Článek WoS
Jazyk
en
Originální abstrakt
This article presents experimental results of artificial roughness behavior inside elastohydrodynamic contacts. An optical tribometer with a high-speed camera was used to measure the film thickness distribution inside the contact. The results are compared to the amplitude attenuation theory including a description of harmonic components modification. Part I of the article deals with roughness deformation. The effects of central film thickness and slide-to-roll ratio on the roughness feature deformation were investigated for two lubricants. It was found that roughness is independent of sliding magnitude and position inside a highly loaded zone. The results showed a good correlation with Hooke's approximate amplitude attenuation model. However, it reaches a limiting deformation under thin film conditions. Part II of the article deals with complementary effect connected with surface roughness under rolling–sliding conditions.
Klíčová slova anglicky
elastohydrodynamic lubrication, surface roughness, roughness effects, amplitude attenuation theory, film thickness, pressure variations, lubricant rheology, in-contact conditions
Vydáno
2016-03-03
Nakladatel
Taylor & Francis Inc
ISSN
1040-2004
Časopis
TRIBOLOGY TRANSACTIONS
Ročník
59
Číslo
2
Strany od–do
267–276
Počet stran
10
BIBTEX
@article{BUT134836,
author="Petr {Šperka} and Ivan {Křupka} and Martin {Hartl}",
title="Experimental Study of Roughness Effect in a Rolling–Sliding EHL Contact. Part I: Roughness Deformation",
journal="TRIBOLOGY TRANSACTIONS",
year="2016",
volume="59",
number="2",
pages="267--276",
doi="10.1080/10402004.2015.1070940",
issn="1040-2004",
url="http://www.tandfonline.com/doi/full/10.1080/10402004.2015.1070940"
}