Experimental Study on the Electric Centrifugal Pump's Vibration Characteristic

Aim at one marine centrifugal pump driven by AC electronic motor,the vibration of which on the variable condition we have tested.According to such testing,the pump's vibration rules at both variable flow rate and run speed are summarized.Meanwhile,the caused reasons due to vibration and the difference between the two conditions are also analyzed.It provides important guidance for controlling vibration of the centrifugal pumps used in variable conditions.And some useful advices are offered about the running method of such marine pumps used in the lower vibration conditions.