Method and apparatus for analyzing and detecting faults in beari

Details Method and apparatus for analyzing and detecting faults in beari Method and apparatus for analyzing and detecting faults in beari

1993-04-09

1996-04-30

Williams, Hezron E.

Measuring and testing

Vibration

By mechanical waves

73659, 73660, 364508, 364576, G01M 1302, G01M 1304, G01N 2912

Patent

active

055114229

ABSTRACT:
The present invention provides a method and system for analyzing signals from rotating machines containing rotating components that slip and, thereby, to detect faults in those components. The signals are processed by a series of steps to generate coherently averaged spectra and derived features that indicate defects in, or certain other features of, machine components that slip or rotate asynchronously.

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"Low Frequency Vibration Generaged By Gear Tooth Impacts" by P. D. McFadden, NDT International, vol. 18 No. 5, Oct. 1985.
"How to Track Rolling Element Bearing Health with Vibration Signature Analysis" by James E. Berry, Sounds and Vibrations, 1993.

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