The Research on the Size Determination of Electromagnetic Suction Force According to the Air Gap Eccentricity in a Vibration Motor

In the paper, the dimension of the air gap eccentricity and the effect of the harmonic field considered. Also, based on this problem, the electromagnetic suction force acting on the rotor was accurately determined. Thus, it is possible to increase the structural reliability of the motor shaft and rotor at the design calculation stage.