Detail publikace
Kvantitativní predikce tloušťky elastohydrodynamického mazacího filmu u maziv s lineární závislostí viskozity na tlaku
KUMAR, P. BAIR, S. KŘUPKA, I. HARTL, M.
Český název
Kvantitativní predikce tloušťky elastohydrodynamického mazacího filmu u maziv s lineární závislostí viskozity na tlaku
Anglický název
Newtonian quantitative elastohydrodynamic film thickness with linear piezoviscosity
Typ
článek v časopise - ostatní, Jost
Jazyk
en
Originální abstrakt
Examples are provided for linear pressure viscosity response at low pressures, which are said to exist in the concentrated contact inlet, including lubricants at high temperature, low viscosity liquids and water/glycol solutions. Full isothermal, Newtonian simulations of the EHL problem reveal film forming, which is quite similar to that of exponential liquids with the exception of the reduced sensitivity to the Dowson material parameter, G, or the Moes parameter, L. Film thickness formulas are offered, which have been experimentally validated. In a significant departure from most investigations of this kind, the viscosity of the experimental liquids was not adjusted to provide successful comparisons with measurement.
Český abstrakt
Článek shrnuje výsledky studia chování maziv u kterých platí lineární závislost viskozity na tlaku. Experimenty byly realizovány na optickém tribometru a naměřené hodnoty byly porovnány s výsledky teoretického řešení vycházející s hodnot viskozity stanovených pomocí vysokotlakého viskozimetru.
Anglický abstrakt
Examples are provided for linear pressure viscosity response at low pressures, which are said to exist in the concentrated contact inlet, including lubricants at high temperature, low viscosity liquids and water/glycol solutions. Full isothermal, Newtonian simulations of the EHL problem reveal film forming, which is quite similar to that of exponential liquids with the exception of the reduced sensitivity to the Dowson material parameter, G, or the Moes parameter, L. Film thickness formulas are offered, which have been experimentally validated. In a significant departure from most investigations of this kind, the viscosity of the experimental liquids was not adjusted to provide successful comparisons with measurement.
Klíčová slova česky
Viskozita; EHD; tloušťka filmu; reologie; tlak
Klíčová slova anglicky
Pressure viscosity behavior; EHL; Film thickness; Rheology
Rok RIV
2010
Vydáno
01.11.2010
Nakladatel
Elsevier
Místo
EU
ISSN
0301-679X
Časopis
Tribology International
Ročník
43
Číslo
11
Strany od–do
2159–2165
Počet stran
7
BIBTEX
@article{BUT49897,
author="Ivan {Křupka} and Martin {Hartl},
title="Newtonian quantitative elastohydrodynamic film thickness with linear piezoviscosity",
journal="Tribology International",
year="2010",
volume="43",
number="11",
month="November",
pages="2159--2165",
publisher="Elsevier",
address="EU",
issn="0301-679X"
}