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Three-Wave Gas Journal Bearing Behavior With Shaft RunoutExperimental orbits of a free-mounted, three-wave gas journal bearing housing were recorded and compared to transient predicted orbits. The shaft was mounted eccentric with a fixed runout. Experimental observations for both the absolute bearing housing center orbits and the relative bearing housing center to shaft center orbits are in good agreement with the predictions. The sub-synchronous whirl motion generated by the fluid film was found experimentally and predicted theoretically for certain speeds. A three-wave journal bearing can run stably under dynamic loads with orbits well inside the bearing clearance. Moreover, the orbits are almost circular free of the influence of bearing wave shape.
Document ID
19970024769
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Dimofte, Florin
(Toledo Univ. OH United States)
Hendricks, Robert C.
(NASA Lewis Research Center Cleveland, OH United States)
Date Acquired
August 17, 2013
Publication Date
May 1, 1997
Publication Information
Publication: Rotordynamic Instability Problems in High-Performance Turbomachinery 1996
Subject Category
Mechanical Engineering
Accession Number
97N24526
Funding Number(s)
CONTRACT_GRANT: NCC3-436
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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