Detail publikace

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.

Anglický název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

en

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova anglicky

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

Vydáno

07.08.2017

Nakladatel

ELSEVIER

Místo

OXFORD, GB

ISSN

0301-679X

Ročník

100

Číslo

1

Strany od–do

84–98

Počet stran

15

BIBTEX


@article{BUT143482,
  author="Motohiro {Kaneta} and Petr {Svoboda} and Ivan {Křupka} and Martin {Hartl},
  title="Influence of thermal conductivity of contact bodies on perturbed film caused by a ridge and groove in point EHL contacts",
  year="2017",
  volume="100",
  number="1",
  month="August",
  pages="84--98",
  publisher="ELSEVIER",
  address="OXFORD, GB",
  issn="0301-679X"
}