Multi-objective Optimization of a New Bilateral Halbach Magnetic Coupler
ZHU Lifang
CHENG Gang
SONG Donghua
Abstract：A new type of bilateral Halbach magnetic coupler was introduced to address the issue of insufficient torque performance in conventional bilateral Halbach magnetic couplers.Using finite element method to model and analyze the parameters of the magnetic coupler,exploring the influence of the main parameters such as magnetization angle and copper disk thickness of the new bilateral Halbach array on the torque and torque density of the coupler.Considering that it is difficult to achieve optimal torque and torque density simultaneously,parameter optimization was carried out for the new bilateral Halbach magnetic coupling.Using response surface methodology is to establish response surface models for torque and torque density,and combining response surface models with particle swarm optimization algorithm for multi-objective optimization is to improve the performance of magnetic couplers.After optimization,compared with conventional couplers,the torque of the new bilateral Halbach magnetic coupler increased by 21.9％and the torque density increased by 11％.The reliability of the particle swarm algorithm was verified through finite element simulation results,and finally an experimental platform was built for testing to verify the accuracy of the finite element simulation.
Keywords：new bilateral Halbach magnetic couplersfinite element methodmulti-objective optimizationparticle swarm algorithm
Publication Date：2025-02-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 13-18 )