Measuring and testing – Vehicle chassis – Steering
Patent
1977-10-20
1978-08-08
Myracle, Jerry W.
Measuring and testing
Vehicle chassis
Steering
73 156, G01M 1500
Patent
active
041049080
ABSTRACT:
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.
REFERENCES:
patent: 3237448 (1966-03-01), Howell et al.
patent: 3832893 (1974-09-01), Dlugos et al.
patent: 3950985 (1976-04-01), Buchwald et al.
patent: 4031366 (1977-06-01), Hartung
patent: 4046002 (1977-09-01), Murphy et al.
patent: 4051720 (1977-10-01), Barrington
Gonyea David C.
Johnson Lloyd H.
Kure-Jensen Jens
Placek Ronald J.
Timo Dominic P.
Ahern John F.
General Electric Company
Mitchell James W.
Myracle Jerry W.
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