Publication detail
Pressure Calculation from Experimentally Evaluated Lubricant Thickness within EHL Contacts
VRBKA, M. VAVERKA, M. POLIŠČUK, R. KŘUPKA, I. HARTL, M.
Czech title
Výpočet tlaku z experimentálně zjištěné tloušťky mazacího filmu v elastohydrodynamicky mazaných kontaktech
English title
Pressure Calculation from Experimentally Evaluated Lubricant Thickness within EHL Contacts
Type
conference paper
Language
en
Original abstract
This paper is concerned with elastohydrodynamic lubrication, especially 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. 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 calculation of pressure using the inverse elasticity theory. The algorithm is enhanced by convolution in order to increase calculation speed. The approach gives credible results on smooth contact and it is currently extended to enable the study of contact of friction surfaces with dents.
Czech abstract
Článek se zabývá výpočtem tlaku z experimentálně zjištěné tloušťky mazacího filmu v elastohydrodynamicky mazaných kontaktech.
English abstract
This paper is concerned with elastohydrodynamic lubrication, especially 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. 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 calculation of pressure using the inverse elasticity theory. The algorithm is enhanced by convolution in order to increase calculation speed. The approach gives credible results on smooth contact and it is currently extended to enable the study of contact of friction surfaces with dents.
Keywords in Czech
Tribologie, mazání, tloušťka mazacího filmu, kontaktní tlak, dent, inversní teorie pružnosti
Keywords in English
Tribology, lubrication, lubricant film thickness, contact pressure, dent, inverse elasticity theory
RIV year
2007
Released
22.10.2007
Publisher
ASME/STLE
Location
San Diego, California, USA
ISBN
978-0-7918-4810-4
Book
Proceedings of the ASME/STLE International Joint Tribology Conference 2007
Edition number
1
Pages from–to
1–3
Pages count
3
BIBTEX
@inproceedings{BUT23929,
author="Martin {Vrbka} and Michal {Vaverka} and Radek {Poliščuk} and Ivan {Křupka} and Martin {Hartl},
title="Pressure Calculation from Experimentally Evaluated Lubricant Thickness within EHL Contacts",
booktitle="Proceedings of the ASME/STLE International Joint Tribology Conference 2007",
year="2007",
month="October",
pages="1--3",
publisher="ASME/STLE",
address="San Diego, California, USA",
isbn="978-0-7918-4810-4"
}