Noise and Vibration Performance in Fractional Slot Permanent Magnet Synchronous Machines Using Stator Bridge

This research analyzes the use of stator bridges to reduce noise and vibration (NV) in fractional slot surface mounted permanent magnet synchronous machines (PMSM) having 12-stator slots and 10-rotor poles (12s/10p). Several stator bridge designs in the stator geometry are proposed and investigated for NV reduction. Then structural-harmonic and acoustic analysis were used to quantify the comparative vibration and acoustic noise performance of the investigated design features.

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