Detail publikace

Effects of lubricant rheology and impact speed on EHL film thickness at pure squeeze action

FRÝZA, J. ŠPERKA, P. KANETA, M. KŘUPKA, I. HARTL, M.

Originální název

Effects of lubricant rheology and impact speed on EHL film thickness at pure squeeze action

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

A squeeze film action is an essential phenomenon in elastohydrodynamically lubricated conjunctions subjected to impact loading or sudden halting of motion and affects both film thickness and friction. This study presents experimental results of film thickness behaviour of lubricant entrapment under diverse conditions including initial impact gaps, initial approaching speeds, loading speeds and variety of lubricants during introductory part of impact loading. The results are compared with recent theoretical solution. It is shown that the entrapped film shape directly depends on loading speed and the central film thickness is mainly determined by the approaching speed and lubricant viscosity and can be approximated by power law where the influence of impact times/speeds can be estimated from basic rheological properties of lubricants.

Klíčová slova

Elastohydrodynamic lubrication; Non-steady state film thickness; Squeeze action; Lubricants

Autoři

FRÝZA, J.; ŠPERKA, P.; KANETA, M.; KŘUPKA, I.; HARTL, M.

Vydáno

15. 10. 2016

Nakladatel

Elsevier

ISSN

0301-679X

Periodikum

Tribology International

Ročník

106

Číslo

2

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

9

Strany počet

9

URL

http://www.sciencedirect.com/science/article/pii/S0301679X16303851

BibTex

@article{BUT129364,
  author="Josef {Frýza} and Petr {Šperka} and Motohiro {Kaneta} and Ivan {Křupka} and Martin {Hartl}",
  title="Effects of lubricant rheology and impact speed on EHL film thickness at pure squeeze action",
  journal="Tribology International",
  year="2016",
  volume="106",
  number="2",
  pages="1--9",
  doi="10.1016/j.triboint.2016.10.023",
  issn="0301-679X",
  url="http://www.sciencedirect.com/science/article/pii/S0301679X16303851"
}