Detail publikace

Chování velmi tenkých mazacích filmů za velkých kontakních tlaků

KŘUPKA, I. HARTL, M.

Český název

Chování velmi tenkých mazacích filmů za velkých kontakních tlaků

Anglický název

Thin lubricating films behaviour at very high contact pressure

Typ

článek v časopise - ostatní, Jost

Jazyk

en

Originální abstrakt

Thin film colorimetric interferometry has been used to examine the behaviour of thin elastohydrodynamic (EHD) lubricant films under very high contact pressures of the order of 0.5 to 3 GPa. It has been shown that at moderate pressures, the variation of film thickness with speed follows the Hamrock and Dowson prediction down to one nanometer. As the load is increased, however, thin films behave differently from the prediction of the conventional EHD theory. For a certain lubricant and operational conditions, there is a critical rolling speed below which a reduction of film thickness is observed. This behaviour is very similar to that previously predicted computationally by Zhu.

Český abstrakt

Kolorimetrická interferometrie byla použita k měření cetrální tloušťky mazacího filmu za velkých kontakních tlaků. Získané výsledky potvrzují predikci chování numerického řešení, kterou publikoval Zhu Dong.

Anglický abstrakt

Thin film colorimetric interferometry has been used to examine the behaviour of thin elastohydrodynamic (EHD) lubricant films under very high contact pressures of the order of 0.5 to 3 GPa. It has been shown that at moderate pressures, the variation of film thickness with speed follows the Hamrock and Dowson prediction down to one nanometer. As the load is increased, however, thin films behave differently from the prediction of the conventional EHD theory. For a certain lubricant and operational conditions, there is a critical rolling speed below which a reduction of film thickness is observed. This behaviour is very similar to that previously predicted computationally by Zhu.

Klíčová slova anglicky

lubrication; film thickness

Rok RIV

2006

Vydáno

30.11.2006

Nakladatel

Elsevier

Místo

Holandsko

ISSN

0301-679X

Časopis

Tribology International

Ročník

39

Číslo

12

Strany od–do

1726–1731

Počet stran

6

BIBTEX


@article{BUT43718,
  author="Ivan {Křupka} and Martin {Hartl},
  title="Thin lubricating films behaviour at very high contact pressure",
  journal="Tribology International",
  year="2006",
  volume="39",
  number="12",
  month="November",
  pages="1726--1731",
  publisher="Elsevier",
  address="Holandsko",
  issn="0301-679X"
}