Publication result detail

Newtonian quantitative elastohydrodynamic film thickness with linear piezoviscosity

KUMAR, P.; BAIR, S.; KŘUPKA, I.; HARTL, M.

Original Title

Newtonian quantitative elastohydrodynamic film thickness with linear piezoviscosity

English Title

Newtonian quantitative elastohydrodynamic film thickness with linear piezoviscosity

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

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.

English abstract

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.

Keywords

Pressure viscosity behavior; EHL; Film thickness; Rheology

Key words in English

Pressure viscosity behavior; EHL; Film thickness; Rheology

Authors

KUMAR, P.; BAIR, S.; KŘUPKA, I.; HARTL, M.

RIV year

2011

Released

01.11.2010

Publisher

Elsevier

Location

EU

ISBN

0301-679X

Periodical

Tribology International

Volume

43

Number

11

State

United Kingdom of Great Britain and Northern Ireland

Pages from

2159

Pages to

2165

Pages count

7

BibTex

@article{BUT49897,
  author="KUMAR, P. and BAIR, S. and KŘUPKA, I. and HARTL, M.",
  title="Newtonian quantitative elastohydrodynamic film thickness with linear piezoviscosity",
  journal="Tribology International",
  year="2010",
  volume="43",
  number="11",
  pages="2159--2165",
  issn="0301-679X"
}