Analysis of Multiple Bearing Failures Caused by Frequency Vibration of Blades
A fan is a machine that uses the mechanical energy of an electric motor to transfer gas ener-gy.In response to the frequency vibration of the blades during the operation of the fan unit,it is pointed out that the pressure pulsation of the fluid is the source of excitation,and the exacerbation of the blade frequency vibration fault can lead to bearing failure of the fan and motor.Using engineering examples,this article provides a reference for handling similar vibration faults and proposes prevention and con-trol measures.