Publication detail
Study of Scale Effect in a Starved Elastohydrodynamically Lubricated Contact
SVOBODA, P. KOŠŤÁL, D. KŘUPKA, I.
Czech title
Studium scale efektu v elastohydrodynamicky mazaném kontaktu
English title
Study of Scale Effect in a Starved Elastohydrodynamically Lubricated Contact
Type
conference paper
Language
en
Original abstract
One of the most important parameters determining the performance and life of machine parts is a lubrication film thickness and its distribution. Current experimental and numerical studies are mostly connected with oil lubrication. However greases are used in more than 80 % of all rolling bearings where the starvation phenomenon occurs most frequently. The question is whether the results obtained from the laboratory scaled contact test device are transferable to real operating conditions of full scale bearings. The aim of this work is to compare these two approaches to measuring film thickness of different greases. The use of multiple contacts optical test rig based on thin film colorimetric interferometry for film thickness measurement has enables to obtain film thickness of starved contact and the film distribution. The experimental observation of full-scale model of bearing will help to understand better the behavior of real bearing.
Czech abstract
Článek pospisuje vliv různých druhů oleje a počtu valivých elementů na tloušťku mazacího filmu v elastohydrodynamicky mazaném kontaktu za podmínek hladovění.
English abstract
One of the most important parameters determining the performance and life of machine parts is a lubrication film thickness and its distribution. Current experimental and numerical studies are mostly connected with oil lubrication. However greases are used in more than 80 % of all rolling bearings where the starvation phenomenon occurs most frequently. The question is whether the results obtained from the laboratory scaled contact test device are transferable to real operating conditions of full scale bearings. The aim of this work is to compare these two approaches to measuring film thickness of different greases. The use of multiple contacts optical test rig based on thin film colorimetric interferometry for film thickness measurement has enables to obtain film thickness of starved contact and the film distribution. The experimental observation of full-scale model of bearing will help to understand better the behavior of real bearing.
Keywords in Czech
EHD mazání, plastické maziva, hladovění, scale efekt
Keywords in English
EHD lubrication, grease, starvation, scale effect
RIV year
2015
Released
11.05.2015
Publisher
Institute of Theoretical and Applied Mechanics
Location
Svratka
ISBN
978-80-86246-42-0
ISSN
1805-8248
Book
ENGINEERING MECHANICS 2015 21st International Conference Engineering Mechanics 2015
Edition number
1
Pages from–to
314–315
Pages count
2
BIBTEX
@inproceedings{BUT114507,
author="Petr {Svoboda} and David {Košťál} and Ivan {Křupka},
title="Study of Scale Effect in a Starved Elastohydrodynamically Lubricated Contact",
booktitle="ENGINEERING MECHANICS 2015
21st International Conference Engineering Mechanics 2015",
year="2015",
month="May",
pages="314--315",
publisher="Institute of Theoretical and Applied Mechanics",
address="Svratka",
isbn="978-80-86246-42-0",
issn="1805-8248"
}