Signature Analysis of Cavitation in Centrifugal Pumps - (PPT)

摘要

Based on the vibration data, it is hard to see a unique signature associated with cavitation. Force seems not to be affected by the cavitation. Pressure seems to be a better indicator of cavitation - more correlated. Motor current and noise do not changed much with cavitation. Cavitation might excite high frequency structural resonances. Vibration appears to increase with the initiation of cavitation. The centrifugal pump has higher vibration amplitude in the axial direction than in the radial direction. More work needs to be done to determine the unique signature of cavitation.