Publication detail
Experimental Study of Real Asperities Behaviour within Lubricated Contacts
KŘUPKA, I. HARTL, M. LIŠKA, M.
Czech title
Experimentální studium chování povrchových nerovností v mazaných kontaktech
English title
Experimental Study of Real Asperities Behaviour within Lubricated Contacts
Type
conference paper
Language
en
Original abstract
Thin film colorimetric interferometry in the combination with phase shifting interferometry has been used for the detail experimental investigation of changes in real surface micro-geometry within EHD conjunction formed between a real, random, rough surface, steel ball and smooth glass disc. Three real roughness features were studied in detail – transverse ridge and 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 pro podrobné studium změn topografie třecích povrchů v mazaných kontaktech. Tři povrchové nerovnosti byly studovány detailně – příčně a podélně orientovaná rýha a příčný práh. U příčného práhu byla pozorována významná elastická deformace v mazaném kontaktu, která se snižovala s rostoucí rychlostí třecích povrchů.
English abstract
Thin film colorimetric interferometry in the combination with phase shifting interferometry has been used for the detail experimental investigation of changes in real surface micro-geometry within EHD conjunction formed between a real, random, rough surface, steel ball and smooth glass disc. Three real roughness features were studied in detail – transverse ridge and 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
film thickness, real asperities, colorimetric interferometry
RIV year
2004
Released
10.01.2004
Publisher
Technische Akademie Esslingen
Location
Esslingen
ISBN
3-924813-54-X
Book
Tribology and Lubrication Engineering
Pages count
6
BIBTEX
@inproceedings{BUT17076,
author="Ivan {Křupka} and Martin {Hartl} and Miroslav {Liška},
title="Experimental Study of Real Asperities Behaviour within Lubricated Contacts",
booktitle="Tribology and Lubrication Engineering",
year="2004",
month="January",
publisher="Technische Akademie Esslingen",
address="Esslingen",
isbn="3-924813-54-X"
}