Fluid Film Lubrication with Nonlinear Four-Element Viscoelastic Fluids (3rd Report, Parallel Circular Bearings in Normal Approach)

Hirotsugu Hayashi, Jun Tomioka, Sanae Wada

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In the first paper, a modified Reynolds equation for nonlinear viscoelastic fluids based on nonlinear four-element model was derived. In the second paper, the effects of viscoelastic behavior on the performance of parallel circular squeeze bearings oscillated sinusoidally was clarified by comparing theoretical results with experimental ones. This paper presents theoretical and experimental studies on fluid film lubrication with nonlinear viscoelastic lubricants between parallel circular plates in normal approach. As the upper plate of the parallel circular bearings falls by its own weight, the film pressure and the film thickness are calculated by solving simultaneously the modified Reynolds equation and the equation of motion of the upper plate. In addition, the experiments using the viscoelastic fluids as lubricants are carried out, and it is found that the experimental results are in good agreement with the theoretical ones.

Original languageEnglish
Pages (from-to)1815-1822
Number of pages8
JournalTransactions of the Japan Society of Mechanical Engineers Series C
Volume53
Issue number492
DOIs
Publication statusPublished - 1987 Jan 1
Externally publishedYes

Keywords

  • Four-Element Model
  • Lubricant
  • Lubrication Theory
  • Normal Approach
  • Parallel Circular Bearing
  • Squeeze Film
  • Viscoelastic Fluid

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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