Detail publikace

Effect of surface texturing on elastohydrodynamically lubricated contact under transient speed conditions

KŘUPKA, I. HARTL, M. ZIMMERMAN, M. HOUŠKA, P. JANG,S.

Originální název

Effect of surface texturing on elastohydrodynamically lubricated contact under transient speed conditions

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

Effect of surface topography modifications on lubrication film thickness within non-conformal lubricated contact operated under transient speed conditions is observed. Optical test rig is used to observe the lubricant film behaviour between the flat surface of a chromium coated glass disc and a steel ball under simplified operational conditions modelling the cam and tappet contact. Numerical simulation was used to be able to choose the operating conditions suitable for experiments. An array of micro-dents was produced on the ball surface to be able to demonstrate the effect of surface topography on lubrication film formation. Experiments were carried out under elastohydrodynamic lubrication conditions. Obtained results have shown that surface texturing could represent the way how to increase lubrication efficiency of rolling/sliding non-conformal contacts under transient operational conditions through the lubricant emitted from micro-dents. It was found that the lubricant emitted from the micro-dents helps to separate rubbing surfaces especially under thin film lubrication conditions where the rubbing surfaces moves in the opposite direction.

Klíčová slova

Elastohydrodynamic; Film thickness; Surface texturing; Transient speed conditions

Autoři

KŘUPKA, I.; HARTL, M.; ZIMMERMAN, M.; HOUŠKA, P.; JANG,S.

Rok RIV

2011

Vydáno

13. 5. 2011

Nakladatel

Elsevier

Místo

Nizozemí

ISSN

0301-679X

Periodikum

Tribology International

Ročník

44

Číslo

10

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1144

Strany do

1150

Strany počet

7

BibTex

@article{BUT74978,
  author="KŘUPKA, I. and HARTL, M. and ZIMMERMAN, M. and HOUŠKA, P. and JANG,S.",
  title="Effect of surface texturing on elastohydrodynamically lubricated contact under transient speed conditions",
  journal="Tribology International",
  year="2011",
  volume="44",
  number="10",
  pages="1144--1150",
  issn="0301-679X"
}