Stability of submerged four-lobe oil journal bearings under dynamic load

R. Pai, B. C. Majumdar

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A non-linear transient method was used to predict the journal centre trajectory for a submerged four-lobe oil journal bearing under (1) unidirectional constant load, (2) unidirectional periodic load, and (3) variable rotating load. The Reynolds equation was integrated using the Jakobsson-Floberg-Olsson cavitation zone model, and oil film prehistory effects were taken into account. The journal centre trajectories obtained were compared with those obtained for submerged plain cylindrical bearings under similar loading conditions. It was observed that the excursions of the journal centre were subdued, unlike for the plain cylindrical bearings, where the journal centre had a large excursion before it became stable or ended in a limit cycle. Interesting trajectories were observed for the periodic load. A three-dimensional plot of the pressure distribution in the bearing clearance was obtained using computer graphics.

Original languageEnglish
Pages (from-to)95-108
Number of pages14
JournalWear
Volume154
Issue number1
DOIs
Publication statusPublished - 15-04-1992

Fingerprint

Bearings (structural)
journal bearings
dynamic loads
Journal bearings
Dynamic loads
lobes
Oils
oils
Trajectories
trajectories
plains
Reynolds equation
Computer graphics
Cavitation
Pressure distribution
computer graphics
clearances
cavitation flow
pressure distribution
plots

All Science Journal Classification (ASJC) codes

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

Cite this

Pai, R. ; Majumdar, B. C. / Stability of submerged four-lobe oil journal bearings under dynamic load. In: Wear. 1992 ; Vol. 154, No. 1. pp. 95-108.
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Stability of submerged four-lobe oil journal bearings under dynamic load. / Pai, R.; Majumdar, B. C.

In: Wear, Vol. 154, No. 1, 15.04.1992, p. 95-108.

Research output: Contribution to journalArticle

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