Publication detail
Prediction of Shallow Indentation Effects in a Rolling-Sliding EHL Contact Based on Amplitude Attenuation Theory
ŠPERKA, P. KŘUPKA, I. HARTL, M.
English title
Prediction of Shallow Indentation Effects in a Rolling-Sliding EHL Contact Based on Amplitude Attenuation Theory
Type
journal article in Web of Science
Language
en
Original abstract
In this paper amplitude attenuation theory is used to predict film thickness variations caused by shallow indentation inside a rolling-sliding elastohydrodynamic (EHL) contact. The model providing a complete analytical description of roughness passage through the contact is considered. The estimation model is compared with film thickness measurement obtained by optical interferometry. The in-contact effects for several shapes of indentation were simulated. It is clearly shown that optimal indentation profile should have smooth shape with large diameter and small depth. The results were generally explained on theoretical curves which bring a clear insight into the transient phenomenon and can be used as a rapid engineering tool.
English abstract
In this paper amplitude attenuation theory is used to predict film thickness variations caused by shallow indentation inside a rolling-sliding elastohydrodynamic (EHL) contact. The model providing a complete analytical description of roughness passage through the contact is considered. The estimation model is compared with film thickness measurement obtained by optical interferometry. The in-contact effects for several shapes of indentation were simulated. It is clearly shown that optimal indentation profile should have smooth shape with large diameter and small depth. The results were generally explained on theoretical curves which bring a clear insight into the transient phenomenon and can be used as a rapid engineering tool.
Keywords in English
micro-elastohydrodynamic lubrication; surface roughness; amplitude attenuation theory; film thickness
Released
15.01.2017
Publisher
Japanese Society of Tribologists
Location
Japonsko
ISSN
1881-2198
Volume
12
Number
1
Pages from–to
1–7
Pages count
7
BIBTEX
@article{BUT134784,
author="Petr {Šperka} and Ivan {Křupka} and Martin {Hartl},
title="Prediction of Shallow Indentation Effects in a Rolling-Sliding EHL Contact Based on Amplitude Attenuation Theory",
year="2017",
volume="12",
number="1",
month="January",
pages="1--7",
publisher="Japanese Society of Tribologists",
address="Japonsko",
issn="1881-2198"
}