Publication detail

Transition from plug-flow to linear speed profile near a dent in a rolling–sliding EHL contact

ŠPERKA, P. KŘUPKA, I. HARTL, M.

Original Title

Transition from plug-flow to linear speed profile near a dent in a rolling–sliding EHL contact

Type

journal article in Web of Science

Language

English

Original Abstract

The paper presents measurements of perturbed film variations during the passage across an EHL rolling–sliding contact. Perturbed film was produced by indentation on a ball. The data for increasing entrainment speed showed the change from steady to variable profile. A simple simulation of a film profile has provided an estimate of the through-film speed profile. The measured data can be explained by a transition from the plug-flow to the linear speed profile. It was found that the transition is occurring at different speed for two sliding cases. Two possible effects connected with an indentation impact on in-contact conditions were discussed.

Keywords

Lubricant rheology; Shear rate; Shear localization; In-contact behavior

Authors

ŠPERKA, P.; KŘUPKA, I.; HARTL, M.

Released

31. 8. 2016

Publisher

Elsevier

ISBN

0301-679X

Periodical

Tribology International

Year of study

100

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

344

Pages to

350

Pages count

7

URL

http://www.sciencedirect.com/science/article/pii/S0301679X16300354

BibTex

@article{BUT134781,
  author="Petr {Šperka} and Ivan {Křupka} and Martin {Hartl}",
  title="Transition from plug-flow to linear speed profile near a dent in a rolling–sliding EHL contact",
  journal="Tribology International",
  year="2016",
  volume="100",
  number="1",
  pages="344--350",
  doi="10.1016/j.triboint.2016.03.027",
  issn="0301-679X",
  url="http://www.sciencedirect.com/science/article/pii/S0301679X16300354"
}