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Vibration Signature Analysis of a Faulted Gear Transmission SystemA comprehensive procedure in predicting faults in gear transmission systems under normal operating conditions is presented. Experimental data were obtained from a spiral bevel gear fatigue test rig at NASA/Lewis. Time-synchronous-averaged vibration data were recorded throughout the test as the fault progressed from a small single pit to severe pitting over several teeth, and finally tooth fracture. A numerical procedure based on the Wigner-Ville distribution was used to examine the time-averaged vibration data. Results from the Wigner-Ville procedure are compared to results from a variety of signal analysis techniques that include time-domain analysis methods and frequency analysis methods. Using photographs of the gear tooth at various stages of damage, the limitations and accuracy of the various techniques are compared and discussed. Conclusions are drawn from the comparison of the different approaches as well as the applicability of the Wigner-Ville method in predicting gear faults.
Document ID
19980124173
Acquisition Source
Headquarters
Document Type
Reprint (Version printed in journal)
Authors
Choy, F. K.
(Akron, Univ. OH United States)
Huang, S.
(Akron, Univ. OH United States)
Zakrajsek, J. J.
(NASA Lewis Research Center Cleveland, OH United States)
Handschuh, R. F.
(NASA Lewis Research Center Cleveland, OH United States)
Townsend, D. P.
(NASA Lewis Research Center Cleveland, OH United States)
Date Acquired
August 18, 2013
Publication Date
April 1, 1996
Publication Information
Publication: Journal of Propulsion and Power
Volume: 12
Issue: 2
ISSN: 0748-4658
Subject Category
Mechanical Engineering
Report/Patent Number
AIAA Paper 94-2937
E-8914-1
Distribution Limits
Public
Copyright
Other

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