Stability of a rigid rotor in turbulent hybrid porous journal bearings

Anjani Kumar, N. S. Rao

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Stability characteristics of hybrid porous journal bearings with a turbulent fluid film have been investigated theoretically following Constantinescu's turbulent lubrication theory. The stability curves have been drawn for different Re, eccentricity ratios, slenderness ratios and bearing speed parameters. In the absence of any experimental data, laminar flow results obtained by this analysis have been compared and found to be in excellent agreement with the previous results. It is observed that turbulence deteriorates the stability of the rotor and for better performance the value of the bearing feeding parameter, β, should be kept small.

Original languageEnglish
Pages (from-to)299-305
Number of pages7
JournalTribology International
Volume27
Issue number5
DOIs
StatePublished - Oct 1994
Externally publishedYes

Keywords

  • hybrid bearings
  • journal bearings
  • porous bearings
  • turbulent regime, stability

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