船舶电力系统永磁同步电机的振动噪声与测试分析

here is so much noise in electronic propulsion of the ship.Mostly, the vibration noise has important effect.In this paper, we proposed a modeling method that is used to analyze the origin of vibration-radial magnetic force.Then,we analyze the radial and tangenitial force of motor in ANSOFT.After this procedure,we analyzed the modal shape of motor in ANSYS. According to the data, we made a form. Finally, the motor's modal, motor vibration and noise were tested. The value of the modal test and the numerical error of the simulation are within 5%, within the allowable range of error. In the test of motor vibration and noise characteristics, the three different conditions of the motor noise and vibration characteristics of the acquisition and spectrum analysis, the high decibel and acceleration peak frequency range statistics, the frequency below 1000HZ, to avoid the resonance, at the same time, the noise and vibration characteristics and torque characteristics of the motor connected together to provide better observation method for vibration characteristics.