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Vibration exciting mechanisms induced by flow in turbomachine stagesThe quasisteady computer analysis of the perturbated centrifugal impeller passage flow was reviewed. A total of 115 stage calculations were used to define the fluid damping coefficient, delta sub fluid. Results indicate that the average total damping coefficient per stage needed for stability is delta sub total 1.85.
Document ID
19800021221
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Thompson, W. E. (Turbo Research, Inc. Lionville, PA, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1980
Publication Information
Publication: NASA. Lewis Res. Center Rotordyn. Instability Probl. in High-Performance Turbomachinery p285-302 (SEE N80-29706 20-37)
Subject Category
Mechanical Engineering
Accession Number
80N29722
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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