Method and device for monitoring high-cycle fatigue life of steam turbine integral rotor

The present invention provides a method and device for monitoring high-cycle fatigue life of a steam turbine integral rotor. The device for monitoring the high-cycle fatigue life of the steam turbine integral rotor is characterized by comprising an ultrasonic flaw detector and a compute server, wherein the ultrasonic flow detector is connected with the compute server. The invention has the following advantages: the quantitative prediction and the quantitative monitor of the high-cycle fatigue life of the steam turbine integral rotor are realized; if the safety of the high-cycle fatigue life of the steam turbine integral rotor does not meet the requirements, the steam turbine integral rotor is redesigned during the designing step or a crack on the surface of the steam turbine integral rotor is removed during the manufacturing step, so as to satisfy the safety requirement of the high-cycle fatigue life of the steam turbine integral rotor, furthermore the high-cycle fatigue life of the steam turbine integral rotor is quantitatively predicted and monitored.