Publication detail
FRICTION OF NON-CONFORMAL CONTACTS UNDER STARVED EHD LUBRICATION
ALI, F. HARTL, M.
Czech title
FRICTION OF NON-CONFORMAL CONTACTS UNDER STARVED EHD LUBRICATION
English title
FRICTION OF NON-CONFORMAL CONTACTS UNDER STARVED EHD LUBRICATION
Type
journal article - other
Language
en
Original abstract
This paper presents experimental results of measuring the friction coefficient of smooth non-conformal surfaces (ball-on-disk test) in the range of elastohydrodynamic lubrication. The coefficient of friction under starved lubrication was observed under relative sliding motion by using a Tribometer and torque sensor. On the other hand, interferometric images were captured by a digital camera simultaneously with measuring the friction between the ball and disk to illustrate the influence of the air-oil meniscus position on the behavior of friction under the starved lubrication. The results show that the friction of starved contacts depends strongly on the distance of the air-oil meniscus from the Hertzian contact. However, the position of air-oil meniscus is basically related to the entraining velocity, the value of slide-to-roll ratio and the oil amount on the track.
Czech abstract
This paper presents experimental results of measuring the friction coefficient of smooth non-conformal surfaces (ball-on-disk test) in the range of elastohydrodynamic lubrication. The coefficient of friction under starved lubrication was observed under relative sliding motion by using a Tribometer and torque sensor. On the other hand, interferometric images were captured by a digital camera simultaneously with measuring the friction between the ball and disk to illustrate the influence of the air-oil meniscus position on the behavior of friction under the starved lubrication. The results show that the friction of starved contacts depends strongly on the distance of the air-oil meniscus from the Hertzian contact. However, the position of air-oil meniscus is basically related to the entraining velocity, the value of slide-to-roll ratio and the oil amount on the track.
English abstract
This paper presents experimental results of measuring the friction coefficient of smooth non-conformal surfaces (ball-on-disk test) in the range of elastohydrodynamic lubrication. The coefficient of friction under starved lubrication was observed under relative sliding motion by using a Tribometer and torque sensor. On the other hand, interferometric images were captured by a digital camera simultaneously with measuring the friction between the ball and disk to illustrate the influence of the air-oil meniscus position on the behavior of friction under the starved lubrication. The results show that the friction of starved contacts depends strongly on the distance of the air-oil meniscus from the Hertzian contact. However, the position of air-oil meniscus is basically related to the entraining velocity, the value of slide-to-roll ratio and the oil amount on the track.
Keywords in Czech
Friction, Starved lubrication, Non-conformal surfaces, EHD lubrication
Keywords in English
Friction, Starved lubrication, Non-conformal surfaces, EHD lubrication
RIV year
2012
Released
14.12.2012
Publisher
(MM) Science Journal
Location
Praha
ISSN
1803-1269
Volume
2012
Number
12
Pages from–to
374–377
Pages count
4
BIBTEX
@article{BUT96835,
author="Fadi {Ali} and Martin {Hartl},
title="FRICTION OF NON-CONFORMAL CONTACTS UNDER STARVED EHD LUBRICATION",
year="2012",
volume="2012",
number="12",
month="December",
pages="374--377",
publisher="(MM) Science Journal",
address="Praha",
issn="1803-1269"
}