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POGO Instabilities Suppression EvaluationA dynamic (frequency response) analysis was made of a liquid oxygen feed system consisting of a low-speed inducer, a high-speed main pump and a positive displacement pulser utilized for simulating pogo induced pressure oscillations. Based on the results of the analysis, an active control system for suppression of pulser generated pressure oscillations was designed, fabricated and tested. The test results verified that the suppressor was effective in attenuating the generated pressure oscillations over the frequency range from 10 to 30 Hz.
Document ID
19740002600
Acquisition Source
Headquarters
Document Type
Contractor Report (CR)
Authors
Farrel, E. C. (Rockwell International Corp. Canoga Park, CA, United States)
Fenwick, J. R. (Rockwell International Corp. Canoga Park, CA, United States)
Date Acquired
September 3, 2013
Publication Date
November 1, 1973
Subject Category
Propellants
Report/Patent Number
R-9125
NASA-CR-134500
Report Number: R-9125
Report Number: NASA-CR-134500
Accession Number
74N10713
Funding Number(s)
CONTRACT_GRANT: NAS3-14382
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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