G - Physics
01
N
354/24
G01N 29/04 (2006.01) G01M 15/00 (2006.01)
Patent
CA 1117658
ABSTRACT OF THE DISCLOSURE A method and apparatus is disclosed for determining whether certain rotor stress values are exceeded during the thermal cycle of a turbomachine. The invention takes into account the rotor material and the behavioral characteristics of the rotor material above and below the Fracture Appearance Transition Temperature (FATT). The acquired data is stored to develop a rotor history useful in determining a rotor condition for maintenance and longevity purposes and further useful in determining the operating pattern of the turbomachine.
311802
Gonyea David C.
Johnson Lloyd H.
Kure-Jensen Jens
Placek Ronald J.
Timo Dominic P.
Company General Electric
Eckersley Raymond A.
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