Application of Stresswave Analysis Technology in Turbine Generator Condition Monitoring and Fault Diagnosis

this paper applied StressWave analysis in steam turbine generator condition monitoring and fault diagnosis, especially for measuring friction, shock and dynamic load transfer between moving parts in sliding bearings. Taking the ultra-high pressure 135MW unit of a power plat as the engineering background, through comprehensive analysis of StressWave system and vibration system monitoring data, it was pointed out the rotor mechanical abnormal vibration fault caused by oil film whirl, and the results reveal that low-pressure cylinder and the generator were in the opposite direction in the unbalanced direction, and the 2# bearing had a left-right displacement on the axis.