The Influence of Stator Structure on Natural Frequency of Permanent Magnet Synchronous Motor
The precise calculation and accurate analysis of the natural frequencies of motor modes are crucial for the design of low-noise motor drives.Permanent magnet synchronous motors(PMSM)used in electric vehicles are considered small-scale motors,and the influence of components such as the casing and end caps on vibration noise cannot be overlooked.Therefore,it is of great significance to accurately calculate and analyze the natural frequencies of different motor structural components and coupled systems.Based on a 12-slot 8-pole PMSM,finite element software is utilized to consider the effects of core material anisotropy,elastic modulus,impregnation,and casing-end cap connection methods.A precise computational model of the stator core structure is established,and the accuracy of the finite element simulation model are verified using modal experiments.
permanent magnet synchronous motorfinite element methodshell and coverwhole machine modehammer method experimental mode
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