电机定子系统振动模态的研究分析

针对电机定子系统的振动与噪声特性,利用Ansys有限元仿真软件对电机定子系统三维模型进行模态仿真,得到电机定子系统的固有频率与振形,并通过试验对仿真结果进行验证。同时,对电机进行电磁仿真,分析其气隙磁密与电磁力谐波,得到电机内部电磁力各次谐波频率。将电磁力谐波频率与电机固有频率进行对比,确保电磁力谐波不会引起电机定子系统共振。验证了电机结构的合理性,为同类产品的设计优化提供了一定的参考价值。

Analysis of Vibration Mode of Motor Stator System

Aiming at the vibration and noise of motor stator system, the ANSYS finite element simulation software was used to simulate the threedimensional model of the motor stator system. The natural frequency and vibration shape of the stator system were obtained. And the simulation results were verified by experiments. At the same time, the electromagnetic simulation of the motor was carried out, and the air gap flux density and the harmonic frequency of electromagnetic force harmonic were obtained. The frequency of electric magnetic harmonic frequency was compared with the natural frequency of the motor to determine that the electromagnetic force harmonic does not cause the resonance of the motor stator system. The rationality of the motor structure was verified. A certain reference value for the design optimization of the same kind of products was provided.