Detection of a fatigue crack in a UH-60A planet gear carrier using vibration analysis

Details Detection of a fatigue crack in a UH-60A planet gear carrier using vibration analysis Detection of a fatigue crack in a UH-60A planet gear carrier using vibration analysis

Nov 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006mssp...20.2095b&link_type=abstract

Mechanical Systems and Signal Processing, Volume 20, Issue 8, p. 2095-2111.

Physics

5

Scientific paper

Two new methods of detecting a fatigue crack in a planet carrier of an epicyclic transmission are developed. These are tested using vibration data from a number of US Army UH-60A Black Hawk helicopter main transmissions. Vibration measurements of faulted and un-faulted transmissions over a range of torque levels in controlled test-cell and on-aircraft conditions are used. The results show that new methods are reliable under test-cell conditions, but less effective under low-torque on-aircraft conditions.

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