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Detecting Faults In Helicopter Gearboxes By The MVIM MethodMultivalued influence-matrix (MVIM) method potential utility as theoretical basis of proposed automated monitoring systems detecting faults in helicopter gearboxes. Applied to recognize patterns in vibration measurements. Fault-recognition system required to operate continuously while helicopter airborne, analyzing measurements of vibrations for signs of trouble to provide real-time warning of any dangerous or potentially dangerous fault like cracked case or fractured gear tooth. System also required not to give false alarms to prevent unnecessary emergency landings.
Document ID
19960022420
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Chin, Hsinyung
(Massachusetts Univ.)
Danai, Kourosh
(Massachusetts Univ.)
Lewicki, David G.
(Army Research Lab.)
Date Acquired
August 17, 2013
Publication Date
May 1, 1996
Publication Information
Publication: NASA Tech Briefs
Volume: 20
Issue: 5
ISSN: 0145-319X
Subject Category
Mathematics And Information Sciences
Report/Patent Number
LEW-16089
Accession Number
96B10235
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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