Effect of Fluid Inertia on Stability of Oil Journal Bearings
Author:
Kakoty S. K.1, Majumdar B. C.1
Affiliation:
1. Department of Mechanical Engineering, Indian Institute of Technology, Kharagpur-721 302, India
Abstract
In the analysis of hydrodynamic journal bearings the effect of fluid inertia is generally neglected in view of its negligible contribution compared to viscous forces. However, the fluid inertia effect is to be taken in the analysis when modified Reynolds number is around one. Though there are a few attempts to analyze steady-state and dynamic characteristics of finite journal bearings, stability of the journal under the effect of fluid inertia is yet to be investigated. An attempt has been made to evaluate the mass parameter (a measure of stability) besides finding out the steady-state characteristics of finite journal bearings considering the effects of fluid inertia. The analysis is carried out for modified Reynolds number ∼O(1.), which is assumed to be laminar. A nonlinear time transient analysis is carried out for the stability analysis. [S0742-4787(00)00204-6]
Publisher
ASME International
Subject
Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials
Reference10 articles.
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