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SVOBODA, P. KOŠŤÁL, D. KŘUPKA, I.
Original Title
Study of Scale Effect in a Starved Elastohydrodynamically Lubricated Contact
Type
conference paper
Language
English
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.
Keywords
EHD lubrication, grease, starvation, scale effect
Authors
SVOBODA, P.; KOŠŤÁL, D.; KŘUPKA, I.
RIV year
2015
Released
11. 5. 2015
Publisher
Institute of Theoretical and Applied Mechanics
Location
Svratka
ISBN
978-80-86246-42-0
Book
ENGINEERING MECHANICS 2015 21st International Conference Engineering Mechanics 2015
Edition
1
Edition number
1805-8248
Periodical
Engineering Mechanics ....
State
Czech Republic
Pages from
314
Pages to
315
Pages count
2
URL
http://www.engmech.cz/im/im/
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", series="1", journal="Engineering Mechanics ....", number="1", pages="314--315", publisher="Institute of Theoretical and Applied Mechanics", address="Svratka", isbn="978-80-86246-42-0", issn="1805-8248", url="http://www.engmech.cz/im/im/" }