Publication detail

Effect of real longitudinal surface roughness on lubrication film formation within line elastohydrodynamic contact

SHEN, XJ. CHEN, XY. ŠPERKA, P. KŘUPKA, I. HARTL, M.

English title

Effect of real longitudinal surface roughness on lubrication film formation within line elastohydrodynamic contact

Type

Peer-reviewed article not indexed in WoS or Scopus

Language

en

Original abstract

The line contact formed between a steel tapered roller and glass disc is observed within an optical test rig and the effects of real surface roughness on lubrication film formation are studied. Experiments carried out under pure rolling conditions have shown that the depth is the key parameter that influences the effect on the film thickness. If the roughness features are shallow, the lubrication film shape within the contact follows the shape of the surface closely. However, the groove having only about 800 nm in depth divided the line contact into two parts that behave as two separate line contacts. Such an effect can increase the risk of the wear of rubbing surfaces as the lubrication film thickness between the real machine components can be significantly lower than expected.

Keywords in English

line contact; Film thickness; Elastohydrodynamic lubrication; Surface roughness

Released

2010-08-31

Publisher

Elsevier

Location

EU

ISSN

0301-679X

Journal

Tribology International

Volume

44

Number

3

Pages from–to

1–6

Pages count

6

BIBTEX


@article{BUT49898,
  author="SHEN, XJ. and CHEN, XY. and ŠPERKA, P. and KŘUPKA, I. and HARTL, M.",
  title="Effect of real longitudinal surface roughness on lubrication film formation within line elastohydrodynamic contact",
  journal="Tribology International",
  year="2010",
  volume="44",
  number="3",
  pages="1--6",
  issn="0301-679X"
}