Considering the asymmetry hole on the shell of the small PMDC motor, a FEA method for the computing of the magnetic vibration force in this type of motor is presented in this paper.

• 摘要针对目前小型永磁直流电机中普遍存在的机壳不对称开孔问题，利用有限元方法计算了在机壳开孔和不开孔两种情况下电机磁振动力的大小，并进行了比较；