Abstract
This paper investigates the effect of stator laminations on the acoustic noise field around the interior permanent magnet synchronous motor. The procedure involves filling the design space of a 4 pole 12 slot interior permanent magnet synchronous motor with multiple motor samples that are partitioned into two sets: the first set represents electric motors with laminated stator cores, while the other set comprises electric motors with non-laminated stator cores. Then, the sound pressure levels for both sets of designs are studied using finite element simulations and statistical analysis to better understand the effect of modeling the electrical steel laminations from the acoustic noise perspective.
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