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RESEARCH PAPERS

Helical-Grooved Journal Bearing Operated in Turbulent Regime

[+] Author and Article Information
C. Y. Chow, J. H. Vohr

Mechanical Technology, Inc., Latham, N. Y.

J. of Lubrication Tech 92(2), 346-357 (Apr 01, 1970) (12 pages) doi:10.1115/1.3451407 History: Received July 11, 1969; Online October 18, 2010

Abstract

An analysis for helical bearings operated in turbulent regime, with negligible inertia in an incompressible fluid film, was performed [10, 11]. The analysis is based on the linearised lubrication theory developed by Ng and Pan [4]. The outlines for this analysis and, in particular, the bearing performance data for various helical groovings are given in this paper. The data presented include the bearing performance at the steady state, the stiffness and damping coefficients, and the critical mass of journal in both laminar and turbulent regimes. To facilitate designs, these data are computed for optimal geometries of helical grooved bearings to provide maximum radial stiffness at various Reynolds numbers. In addition, the effect of external pressurized supply of lubricant are shown in the performance curves.

Copyright © 1970 by ASME
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