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Analysis of a two row hydrostatic journal bearing with variable properties, inertia effects and surface roughnessA computer algorithm for simulation of hydrostatic journal bearing pressure-flow behavior has been generated. The effects taken into account are inertia, cavitation, variable properties (isothermal bearing) and roughness. The program has been specifically tailored for simulation of the hybrid bearing of the cryogenic turbopumps of the main shuttle engine. Due to the high pressure (515 psia) of the supply line no cavitation has been found. The influence of the roughness effects have been found to become important only when the surface-roughness order of magnitude is comparable with that of the bearing clearance itself. Pocket edge inertia and variable properties have been found to have quite an important influence upon the pocket pressure, field pressure distribution and lubricant mass flow.
Document ID
19860045861
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Braun, M. J.
(Akron, University OH, United States)
Adams, M. L.
(Akron Univ. Akron, OH, United States)
Mullen, R. L.
(Case Western Reserve University Cleveland, OH, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Publication Information
Publication: Israel Journal of Technology
Volume: 22
Issue: 2-3
ISSN: 0021-2202
Subject Category
Mechanical Engineering
Accession Number
86A30599
Funding Number(s)
CONTRACT_GRANT: NAG3-304
Distribution Limits
Public
Copyright
Other

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