volume | PIER Journals

Abstract

Coaxial magnetic gear (CMG) with magnetic field modulation mechanism features high torque density, non-contact transmis-sion, and overload automatic protection, making it an optimal substitute for mechanical gears. Considering the unbalanced mag-netic pull caused by the modulation effect of magnetic field and the component eccentricities, the deformations of the key fer-romagnetic pole-pieces (FPs) are analyzed with and without magnetic-force-structure multi-field coupling. Then, the segmenta-tion and reinforcement ideas based on bionic-bamboo are proposed in order to reduce the deformation of FPs. The functional relationships among FPs structural parameters, the output torque of CMG and the deformation of FPs are established with the orthogonal test method and response surface method. Based on NSGA-Ⅲ, the optimal parameters of FPs are obtained, and the corresponding deformation is greatly reduced. Finally, it is proved that the bionic-bamboo FPs can effectively reduce its defor-mation by the experiment and finite element simulation.

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Dr. Yufeng Zhou

Dr. Heng Yang

Dr. Shuai Luo

Professor Xiuhong Hao