The elastohydrodynamic lubrication of line contacts with pseudoplastic fluids

Lin Tsann-Rong, Jen-Fin Lin

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A new Reynolds equation, obtained by using the pseudoplastic model to express the non-newtonian fluid property, is derived for line contact elastohydrodynanic lubrication problems. The Reynolds equation results in a non-linear equation of high order which is derived by using an approximate method. The Newton-Raphson technique is utilized to solve the simultaneous system of modified Reynolds and elasticity equations. The results in this paper show that on increase in the coefficient of non-linearity, the pressure spike and film thickness decrease, and they approach a hertzian situation. With respect to the various loads and/or velocity values, the behaviours of the pressure spike and film thickness for non-newtonian fluids are almost the same as those of a newtonian fluid.

Original languageEnglish
Pages (from-to)235-249
Number of pages15
JournalWear
Volume140
Issue number2
DOIs
Publication statusPublished - 1990 Jan 1

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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