Detail publikačního výsledku

Numerical evaluation of pressure from experimentally measured film thickness in EHL point contact

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

Originální název

Numerical evaluation of pressure from experimentally measured film thickness in EHL point contact

Anglický název

Numerical evaluation of pressure from experimentally measured film thickness in EHL point contact

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

EHL, elastohydrodynamic lubrication, film thickness , contact pressure, colorimetric interferometry, convolution, inverse elasticity theory

Klíčová slova v angličtině

EHL, elastohydrodynamic lubrication, film thickness , contact pressure, colorimetric interferometry, convolution, inverse elasticity theory

Autoři

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

Rok RIV

2010

Vydáno

01.01.2008

Nakladatel

John Wiley & Sons, Ltd.

Místo

GB

ISSN

0954-0075

Periodikum

Lubrication Science

Svazek

20

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

47

Strany do

59

Strany počet

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"
}