Publication detail
Numerical study on the interaction of transversely oriented ridges in thermal elastohydrodynamic lubrication point contacts using the Eyring shear-thinning model
CUI, J. P. YANG, P. KANETA, M. KŘUPKA, I.
English title
Numerical study on the interaction of transversely oriented ridges in thermal elastohydrodynamic lubrication point contacts using the Eyring shear-thinning model
Type
journal article in Web of Science
Language
en
Original abstract
Transient behaviour of tribo-characteristics caused by transversely oriented ridges on point contact surfaces was investigated based on a thermal elastohydrodynamic lubrication analysis. The ridges were assumed to exist on both the contact surfaces with different velocities. Results show that the interaction of ridges gives a large influence on the local film thickness, pressure, friction coefficient, temperatures on both the solid surfaces and temperature in the oil film. It is also pointed out that the size of the contact bodies brings strong effect on the temperature distribution and shear rate as well as on the friction coefficient. Furthermore, it is revealed that under rolling-sliding conditions, the shear-thinning property of the lubricant is negligible when the size of the contact body is large enough. However, shear-thinning effect plays an important role when the size is extremely small.
English abstract
Transient behaviour of tribo-characteristics caused by transversely oriented ridges on point contact surfaces was investigated based on a thermal elastohydrodynamic lubrication analysis. The ridges were assumed to exist on both the contact surfaces with different velocities. Results show that the interaction of ridges gives a large influence on the local film thickness, pressure, friction coefficient, temperatures on both the solid surfaces and temperature in the oil film. It is also pointed out that the size of the contact bodies brings strong effect on the temperature distribution and shear rate as well as on the friction coefficient. Furthermore, it is revealed that under rolling-sliding conditions, the shear-thinning property of the lubricant is negligible when the size of the contact body is large enough. However, shear-thinning effect plays an important role when the size is extremely small.
Keywords in English
Thermal elastohydrodynamic lubrication; surface roughness; shear-thinning; friction coefficient; Eyring model
Released
09.01.2017
Publisher
SAGE PUBLICATIONS LTD
Location
London, GB
ISSN
1350-6501
Volume
231
Number
1
Pages from–to
93–106
Pages count
14
BIBTEX
@article{BUT143480,
author="Motohiro {Kaneta} and Petr {Svoboda} and Ivan {Křupka},
title="Numerical study on the interaction of transversely oriented ridges in thermal elastohydrodynamic lubrication point contacts using the Eyring shear-thinning model",
year="2017",
volume="231",
number="1",
month="January",
pages="93--106",
publisher="SAGE PUBLICATIONS LTD",
address="London, GB",
issn="1350-6501"
}