Affiliation:
1. School of Mathematics, University of Leeds, Leeds, England LS2 9JT
Abstract
Dynamically loaded rotor bearings are frequently observed to perform whirling motions, in which the center of the rotor describes some sort of closed orbit. In this paper we demonstrate, by using numerical computations of whirl orbits in a simple π-film model, the role of cavitation of the lubricant in enabling fluid forces alone to drive such stable orbits for certain ranges of parameter values. For other parameter values cavitation may actually enhance the instability always associated with the effects of fluid forces in a full-film bearing.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Cited by
21 articles.
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