Low cycle fatigue damage counter

Details Low cycle fatigue damage counter Low cycle fatigue damage counter

G - Physics

01

V

354/23

G01V 1/28 (2006.01) F01D 21/00 (2006.01) G01M 7/00 (2006.01) G07C 3/00 (2006.01)

Patent

CA 1068004

ABSTRACT OF THE DISCLOSURE An electrical input signal representative of the existing operating state of a rotating bladed disk is classi- fied into one of a plurality of predetermined operating states and a sequence detector is employed for detecting the occurrence of one of a plurality of possible predetermined sequences of such operating states. Predetermined fixed damage coefficients are then correlated with respectively corresponding detected predetermined sequences of operating states and accumulated with other similarly selected damage coefficients so as to provide a cumulative indication of low cycle fatigue damage done to the rotating bladed disk over its past history of experienced operating state sequences. -- 1 -- - 1 -

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