Publication result detail

Experimental study of real roughness attenuation in concentrated contacts

ŠPERKA, P.; KŘUPKA, I.; HARTL, M.

Original Title

Experimental study of real roughness attenuation in concentrated contacts

English Title

Experimental study of real roughness attenuation in concentrated contacts

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

The understanding of the processes involved in the in-contact deformation of surface roughness represents one of key factors in increasing lubrication capabilities of highly loaded machine components. Two main approaches have been developed in an effort to understand the changes of initial surface topography within highly loaded contacts to provide detailed information about lubrication film thickness and pressure distribution in the vicinity of roughness features. The first approach considers the real surface topography while the other uses the simplified topography features. Numerical solutions based on measured topography data can provide the film thickness and pressure distribution around asperities of realistic scale; nevertheless, obtained results are typically limited to the specific topography configuration measured from a very small area of rubbing surface. That is why some researchers have considered harmonic features of various wavelength and amplitudes to explain the behaviour of real roughness.

English abstract

The understanding of the processes involved in the in-contact deformation of surface roughness represents one of key factors in increasing lubrication capabilities of highly loaded machine components. Two main approaches have been developed in an effort to understand the changes of initial surface topography within highly loaded contacts to provide detailed information about lubrication film thickness and pressure distribution in the vicinity of roughness features. The first approach considers the real surface topography while the other uses the simplified topography features. Numerical solutions based on measured topography data can provide the film thickness and pressure distribution around asperities of realistic scale; nevertheless, obtained results are typically limited to the specific topography configuration measured from a very small area of rubbing surface. That is why some researchers have considered harmonic features of various wavelength and amplitudes to explain the behaviour of real roughness.

Keywords

elastohydrodynamic lubrication; roughness; amplitude reduction

Key words in English

elastohydrodynamic lubrication; roughness; amplitude reduction

Authors

ŠPERKA, P.; KŘUPKA, I.; HARTL, M.

RIV year

2010

Released

08.12.2009

Publisher

Elsevier

Location

EU

ISBN

0301-679X

Periodical

Tribology International

Volume

42

Number

12

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

9

Pages count

9

BibTex

@article{BUT46830,
  author="Petr {Šperka} and Ivan {Křupka} and Martin {Hartl}",
  title="Experimental study of real roughness attenuation in concentrated contacts",
  journal="Tribology International",
  year="2009",
  volume="42",
  number="12",
  pages="1--9",
  issn="0301-679X"
}