Publication detail
Experimental Study of Roughness Effect in a Rolling–Sliding EHL Contact. Part I: Roughness Deformation
ŠPERKA, P. KŘUPKA, I. HARTL, M.
English title
Experimental Study of Roughness Effect in a Rolling–Sliding EHL Contact. Part I: Roughness Deformation
Type
WoS Article
Language
en
Original abstract
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.
Keywords in English
elastohydrodynamic lubrication, surface roughness, roughness effects, amplitude attenuation theory, film thickness, pressure variations, lubricant rheology, in-contact conditions
Released
2016-03-03
Publisher
Taylor & Francis Inc
ISSN
1040-2004
Journal
TRIBOLOGY TRANSACTIONS
Volume
59
Number
2
Pages from–to
267–276
Pages count
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"
}