Influence of high‐order electromagnetic force on vibration characteristics of induction motor

The exploration of electromagnetic vibration sources is very important for the vibroacoustic reduction a squirrel-cage induction motor. However, influence high-order force on motor has not been studied before. investigated in detail. Firstly, Maxwell stress tensor method applied to calculate force. Next, transfer function introduced describe phenomenon that induces low-mode vibration. Then, forces air gap are analysed detail and their effects simulated. Finally, an experiment conducted verify correctness analytical scheme.