Fluid film lubrication with nonlinear four-element viscoelastic fluids (finite-width journal bearings and parallel circular bearings in normal approach)

Hirotsugu Hayashi, Jun Tomioka, Sanae Wada

Research output: Contribution to journalArticle

Abstract

A modified Reynolds equation for nonlinear viscoelastic fluids based on a nonlinear four-element model was derived, and the effects of viscoelastic behavior on the performance of parallel circular squeeze bearings oscillated sinusoidally was clarified by comparing the theoretical results with experimental ones. This paper presents two applications of the modified Reynolds equation to fluid film lubrication problems. By applying the modified Reynolds equation to a finite-width journal bearing which is oscillated sinusoidally, the analytical procedure for viscoelastic lubrication problems under three-dimensional flows of lubricants is clarified, and good agreement is shown between the experimental results and the theoretical predictions based on the four-element model.

Original languageEnglish
Pages (from-to)765-772
Number of pages8
JournalJSME international journal
Volume31
Issue number4
Publication statusPublished - 1988 Dec 1

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ASJC Scopus subject areas

  • Engineering(all)

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