Stability analysis of flexibly supported rough submerged oil journal bearings

R. Jonnadula, B. C. Majumdar, N. S. Rao

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

A theoretical analysis is presented to study the effect of support stiffness and damping on the transient response of flexibly supported rotor-bearing systems, considering surface roughness. The transient response of rotor is plotted in the form of trajectories. The average Reynolds equation, which uses the Patir and Cheng flow simulation model of rough surfaces, is solved by the finite difference method with a successive over-relaxation scheme (Gauss-Seidel), while the equations of motion of both the rotor and bearing are solved by the fourth-order Runge-Kutta method. It has been found that the surface roughness considerably affects the stability of a rotor-bearing system and the stability may be improved greatly by a proper design of bearing supports.

Original languageEnglish
Pages (from-to)437-444
Number of pages8
JournalTribology Transactions
Volume40
Issue number3
DOIs
StatePublished - Jan 1 1997
Externally publishedYes

Keywords

  • Journal Bearings
  • Stability
  • Surface Roughness

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