Publication detail

Influence of thermal conductivity of contact bodies on perturbed film caused by a ridge and groove in point EHL contacts

KANETA, M. CUI, J. L. YANG, P. R. KŘUPKA, I. HARTL, M.

English title

Influence of thermal conductivity of contact bodies on perturbed film caused by a ridge and groove in point EHL contacts

Type

WoS Article

Language

en

Original abstract

The effects of a transverse ridge and groove in ceramics (Si3N4 and ZrO2) and steel circular contacts on the film thickness, pressure and temperature are discussed through transient non-Newtonian thermal EHL analyzes. The appearance time and the moving velocity of a perturbed film generated by a surface irregularity are mainly affected by the sign of slid-roll ratio, which relates directly to the thermal viscosity wedge effect, and the surface where the irregularity exists. The moving velocity of the perturbed film does not necessarily corresponds to the entrainment velocity. The perturbed film produced by the groove brings about a higher pressure at the ridge position depending on the relative position between the groove and the ridge. (C) 2015 Elsevier Ltd. All rights reserved.

Keywords in English

Thermal elastohydrodynamic lubrication; Ceramic-steel contacts; Thermal viscosity wedge effect; Perturbed film

Released

2017-08-07

Publisher

ELSEVIER

Location

OXFORD, GB

ISSN

0301-679X

Journal

Tribology International

Volume

100

Number

1

Pages from–to

84–98

Pages count

15

BIBTEX


@article{BUT143482,
  author="KANETA, M. and CUI, J. L. and YANG, P. R. and KŘUPKA, I. and HARTL, M.",
  title="Influence of thermal conductivity of contact bodies on perturbed film caused by a ridge and groove in point EHL contacts",
  journal="Tribology International",
  year="2017",
  volume="100",
  number="1",
  pages="84--98",
  doi="10.1016/j.triboint.2015.11.022",
  issn="0301-679X"
}