Publication detail

Calculation of pressure distribution in EHD point contacts from experimentally determinated film thickness

Molimard J. Querry M. Vergne P. Krupka I. Hartl M.

Czech title

Stanovení tlaku v elastohydrodynamicky mazaném bodovém kontaktu z naměřené tloušťky mazacího filmu

English title

Calculation of pressure distribution in EHD point contacts from experimentally determinated film thickness

Type

journal article - other

Language

en

Original abstract

In lubrication studies, film thickness is measured since 1963 using optical interferometry, but pressure distribution is also of great interest. Unfortunately, this parameter is very difficult to measure. This paper presents a new method for pressure evaluation based on an inverse elastic approach. This latter uses the film thickness field known precisely (3 nm) by computerised treatment of interferograms. We present here the whole process, from the image to the pressure field.

Czech abstract

Rozložení tlaku v mazacím filmu je získáno z tloušťky mazacího filmu stanovené optickou interferometrií. Přesné hodnoty tloušťky mazacího filmu jsou nezbytným předpokladem pro dosažení uspokojivé přesnosti v rozložení tlaku v mazaném konaktu. Uvedený postup umožňuje relativně rychlé stanovení rozložení tlaku v mazaném bodovém kontaktu.

English abstract

In lubrication studies, film thickness is measured since 1963 using optical interferometry, but pressure distribution is also of great interest. Unfortunately, this parameter is very difficult to measure. This paper presents a new method for pressure evaluation based on an inverse elastic approach. This latter uses the film thickness field known precisely (3 nm) by computerised treatment of interferograms. We present here the whole process, from the image to the pressure field.

Keywords in Czech

tlak; tloušťka mazacího filmu

Keywords in English

pressure; film thickness

RIV year

2005

Released

01.08.2005

Publisher

Elsevier

Location

Amsterdam

ISSN

0301-679X

Journal

Tribology International

Volume

38

Number

4

Pages from–to

391–401

Pages count

11

BIBTEX


@article{BUT46389,
  author="Ivan {Křupka} and Martin {Hartl},
  title="Calculation of pressure distribution in EHD point contacts from experimentally determinated film thickness",
  journal="Tribology International",
  year="2005",
  volume="38",
  number="4",
  month="August",
  pages="391--401",
  publisher="Elsevier",
  address="Amsterdam",
  issn="0301-679X"
}