Magnetostriction Vibration and Acoustic Noise in Motor Stator Cores
Yifei Cai,
Fares S. El-Faouri,
Naoki Saikawa
et al.
Abstract:This study focuses on the impact of magnetostriction on vibration and acoustic noise emitted from motor stator cores. Typically, motor vibration and acoustic noise are attributed to radial electromagnetic forces, torque ripple, and pulse-width modulation switching. However, it is important to consider the influence of magnetostriction in iron core materials with high magnetostriction. In this study, an analytical model was developed to derive the equivalent magnetostrictive force in a global cylindrical coordi… Show more
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