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VAVERKA, M. VRBKA, M. POLIŠČUK, R. KŘUPKA, I. HARTL, M.
Original Title
Numerical evaluation of pressure from experimentally measured film thickness in EHL point contact
Type
journal article - other
Language
English
Original Abstract
This paper is concerned with elastohydrodynamic lubrication, especially the determination of lubricant film thickness and contact pressure within a point contact of friction surfaces of machine parts. A new solution technique for numerical determination of contact pressure is introduced. The direct measurement of contact pressure is very difficult. Hence, input data of lubricant film thickness obtained from the experiment based on colorimetric interferometry are used for the calculation of pressure using the inverse elasticity theory. The algorithm is enhanced by convolution in order to increase calculation speed. The approach described in this contribution gives reliable results on smooth contact and in the future, it will be extended to enable the study of contact of friction surfaces with asperities.
Keywords
EHL, elastohydrodynamic lubrication, film thickness , contact pressure, colorimetric interferometry, convolution, inverse elasticity theory
Key words in English
Authors
VAVERKA, M.; VRBKA, M.; POLIŠČUK, R.; KŘUPKA, I.; HARTL, M.
RIV year
2008
Released
1. 1. 2008
Publisher
John Wiley & Sons, Ltd.
Location
GB
ISBN
0954-0075
Periodical
Lubrication Science
Year of study
20
Number
1
State
United Kingdom of Great Britain and Northern Ireland
Pages from
47
Pages to
59
Pages count
13
BibTex
@article{BUT44134, author="Michal {Vaverka} and Martin {Vrbka} and Radek {Poliščuk} and Ivan {Křupka} and Martin {Hartl}", title="Numerical evaluation of pressure from experimentally measured film thickness in EHL point contact", journal="Lubrication Science", year="2008", volume="20", number="1", pages="47--59", issn="0954-0075" }