Publication result detail

Pressure Calculation from Experimentally Evaluated Lubricant Thickness within EHL Contacts

VRBKA, M.; VAVERKA, M.; POLIŠČUK, R.; KŘUPKA, I.; HARTL, M.

Original Title

Pressure Calculation from Experimentally Evaluated Lubricant Thickness within EHL Contacts

English Title

Pressure Calculation from Experimentally Evaluated Lubricant Thickness within EHL Contacts

Type

Paper in proceedings (conference paper)

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.

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

Tribology, lubrication, lubricant film thickness, contact pressure, dent, inverse elasticity theory

Key words in English

Tribology, lubrication, lubricant film thickness, contact pressure, dent, inverse elasticity theory

Authors

VRBKA, M.; VAVERKA, M.; POLIŠČUK, R.; KŘUPKA, I.; HARTL, M.

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

STLE/ASME

Pages from

1

Pages to

3

Pages count

3

Full text in the Digital Library

http://hdl.handle.net/

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",
  series="STLE/ASME",
  number="1",
  pages="1--3",
  publisher="ASME/STLE",
  address="San Diego, California, USA",
  isbn="978-0-7918-4810-4"
}