Measuring and testing – Vibration – Resonance – frequency – or amplitude study
Patent
1994-03-22
1996-01-16
Chilcot, Richard
Measuring and testing
Vibration
Resonance, frequency, or amplitude study
738659, G01H 100
Patent
active
054838339
ABSTRACT:
Operability of aircraft mechanical components is monitored by analyzing the voltage output of an electrical generator of the aircraft. Alternative generators, for a turbine-driven rotor aircraft, include the gas producer turbine tachometer generator, the power turbine tachometer generator, and the aircraft systems power producing starter/generator. Changes in the peak amplitudes of the fundamental frequency and its harmonics are correlated to changes in condition of the mechanical components.
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Ayers Curtis W.
Dickens Larry M.
Haynes Howard D.
Adams H. W.
Chilcot Richard
Martin Marietta Energy Systems Inc.
Noori Max
Pennington E. A.
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