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RESEARCH PAPERS

Experimental Stability Studies of the Herringbone-Grooved Gas-Lubricated Journal Bearing

[+] Author and Article Information
Robert E. Cunningham, David P. Fleming, William J. Anderson

NASA, Lewis Research Center, Cleveland, Ohio

J. of Lubrication Tech 91(1), 52-57 (Jan 01, 1969) (6 pages) doi:10.1115/1.3554896 History: Received March 22, 1968; Online August 23, 2011

Abstract

Experimental studies were conducted on six rotors, 1 1/2 in. dia by 12 1/4 in. long operating in ambient air to high compressibility numbers. Herringbone-groove geometries and clearances were varied to determine their effect on half-frequency whirl (HFW). All rotors were operated vertically and without any applied radial load. Results show that half-frequency-whirl onset is very sensitive to radial clearance. Limited test results indicate that a fully grooved bearing is more stable than a partially grooved one, other parameters being equal. Generally fair agreement between theory and experiment was achieved for predicting HFW onset speeds.

Copyright © 1969 by ASME
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