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Monitoring Engine Vibrations And Spectrum Of ExhaustReal-time computation of intensities of peaks in visible-light emission spectrum of exhaust combined with real-time spectrum analysis of vibrations into developmental monitoring technique providing up-to-the-second information on conditions of critical bearings in engine. Conceived to monitor conditions of bearings in turbopump suppling oxygen to Space Shuttle main engine, based on observations that both vibrations in bearings and intensities of visible light emitted at specific wavelengths by exhaust plume of engine indicate wear and incipient failure of bearings. Applicable to monitoring "health" of other machinery via spectra of vibrations and electromagnetic emissions from exhausts. Concept related to one described in "Monitoring Bearing Vibrations For Signs Of Damage", (MFS-29734).
Document ID
19910000679
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Martinez, Carol L.
(Rockwell International Corp.)
Randall, Michael R.
(Rockwell International Corp.)
Reinert, John W.
(Rockwell International Corp.)
Date Acquired
August 14, 2013
Publication Date
December 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 12
ISSN: 0145-319X
Subject Category
Machinery
Report/Patent Number
MFS-29733
Accession Number
91B10679
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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