非晶合金永磁电机的电磁振动噪声计算与分析.

Aiming at the problem that poor vibration and noise performance of motor can be caused when amorphous alloy is used as motor core material, the electromagnetic noise and vibration characteristics of amorphous permanent magnet motor were studied. Amorphous alloy Metglas2605SAl was used as stator core of a permanent magnet motor, the amorphous and silicon steel motors electromagnetic field distribution , the size of the electromagnetic force, vibration velocity and vibration acceleration, vibration displacement deformation, the noise distribution around the motor and the spectrum analysis were calculated by the finite element method for electromagnetic-mechanical-fluid coupling. The results show that radial electromagnetic force is the main cause of electromagnetic vibration, the vibration deformation and noise level of amorphous motor are obviously higher than that of silicon steel motor, the noise level of amorphous motor is 5 dB higher than that of silicon steel motor. [ABSTRACT FROM AUTHOR]