Detail publikačního výsledku

Mechanical Degradation of the Liquid in an Operating EHL Contact

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

Originální název

Mechanical Degradation of the Liquid in an Operating EHL Contact

Anglický název

Mechanical Degradation of the Liquid in an Operating EHL Contact

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

Elastohydrodynamic lubrication (EHL) calculations using the real pressure and real shear dependence of viscosity have revealed that the shear and load dependences of film thickness are often greater than the classical prediction. Experimental measurements have confirmed the increased sensitivity to scale and load; however, the sensitivities are even greater than would be expected from shear-thinning. Time-dependent film thickness measurements and stress-history-dependent flow curves are employed to show that molecular degradation may occur at nominal rolling EHL stress levels and that this degradation affects the film thickness.

Anglický abstrakt

Elastohydrodynamic lubrication (EHL) calculations using the real pressure and real shear dependence of viscosity have revealed that the shear and load dependences of film thickness are often greater than the classical prediction. Experimental measurements have confirmed the increased sensitivity to scale and load; however, the sensitivities are even greater than would be expected from shear-thinning. Time-dependent film thickness measurements and stress-history-dependent flow curves are employed to show that molecular degradation may occur at nominal rolling EHL stress levels and that this degradation affects the film thickness.

Klíčová slova

EHL with non Newtonian lubricants; Rheology; Non Newtonian behavior; Lubricant degradation

Klíčová slova v angličtině

EHL with non Newtonian lubricants; Rheology; Non Newtonian behavior; Lubricant degradation

Autoři

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

Rok RIV

2011

Vydáno

05.10.2010

Nakladatel

Springer

Místo

EU

ISSN

1023-8883

Periodikum

TRIBOLOGY LETTERS

Svazek

40

Číslo

3

Stát

Spojené státy americké

Strany od

1

Strany do

7

Strany počet

7

BibTex

@article{BUT49899,
  author="KŘUPKA, I. and HARTL, M. and BAIR, S. and SVOBODA, P. and KUMAR, P.",
  title="Mechanical Degradation of the Liquid in an Operating EHL Contact",
  journal="TRIBOLOGY LETTERS",
  year="2010",
  volume="40",
  number="3",
  pages="1--7",
  issn="1023-8883"
}