Publication detail

Experimental study of the behaviour of real asperities within lubricated contacts

KŘUPKA, I. HARTL, M. LIŠKA, M.

Czech title

Experimentální studium chování reálných nerovností v mazaných kontaktech

English title

Experimental study of the behaviour of real asperities within lubricated contacts

Type

journal article - other

Language

en

Original abstract

Thin film colorimetric interferometry was used in combination with phase shifting interferometry for the detailed experimental investigation of changes in real surface microgeometry within the elastohydrodynamic conjunction formed between a real, random, rough surface, a steel ball and a smooth glass disc. Three real roughness features were studied in detail – the transverse ridge, transverse groove and longitudinal groove. The ridge was found to be heavily deformed within lubricated contact and its height increased with increasing rolling speed. For the transverse groove, a local reduction in film thickness at the leading edge was observed, while the longitudinal groove maintained its undeformed shape.

Czech abstract

Kolorimetrická interferometrie a interferometrie s řízenou změnou fáze byly použity ke studiu chování povrchových nerovností v mazaném kontaktu. To umožnilo podrobně mapovat lokální změny v tloušťce mazacího filmu způsobené těmito nerovnostmi.

English abstract

Thin film colorimetric interferometry was used in combination with phase shifting interferometry for the detailed experimental investigation of changes in real surface microgeometry within the elastohydrodynamic conjunction formed between a real, random, rough surface, a steel ball and a smooth glass disc. Three real roughness features were studied in detail – the transverse ridge, transverse groove and longitudinal groove. The ridge was found to be heavily deformed within lubricated contact and its height increased with increasing rolling speed. For the transverse groove, a local reduction in film thickness at the leading edge was observed, while the longitudinal groove maintained its undeformed shape.

Keywords in English

lubricarion; roughness; film thickness

RIV year

2006

Released

03.05.2006

Publisher

John Wiley & Sons

Location

UK

ISSN

0954-0075

Journal

Lubrication Science

Volume

18

Number

2

Pages from–to

129–139

Pages count

11

BIBTEX


@article{BUT43719,
  author="Ivan {Křupka} and Martin {Hartl} and Miroslav {Liška},
  title="Experimental study of the behaviour of real asperities within lubricated contacts",
  journal="Lubrication Science",
  year="2006",
  volume="18",
  number="2",
  month="May",
  pages="129--139",
  publisher="John Wiley & Sons",
  address="UK",
  issn="0954-0075"
}