摘  要：该文采用解析方法，建立了电机径向电磁力的计算模型，关注了可能出现的电磁力的频率，采用有限元方法验证了解析磁场计算的正确性。实验结果表明，该方法可以方便地求得对电机振动贡献较大的电磁力成分，从而为研究电机其他工况下的电磁振动及噪声建立基础。
关键词：电磁力；气隙磁密；谐波；气隙磁导；径向力

Abstract: An analytical model had been developed for analyzing the radial vibration force in induction motors,it is compared with finite-element analyses. The experimental results indicated that the proposed methods were simple and easy to get the dominant radial force harmonic which can bring vibration, and could be used to analyze the vibration and noise in the motors working in other situations.
Key words: electromagnetic force;flux density;harmonic components;air-gap permance;radial force