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Optimization of Magnetization Directions in a 3-D Magnetic Structure
Choi, Jae Seok,Yoo, Jeonghoon,Nishiwaki, Shinji,Izui, Kazuhiro IEEE 2010 IEEE transactions on magnetics Vol.46 No.6
<P> This study introduces a design method for determining the optimized magnetization directions in 3-D magnetic systems. Based on a modified topology optimization method, discrete magnetizations are investigated in six directions <TEX>$(\pm{x},\pm{y},\pm{z})$</TEX>. The finite-element method is used for the 3-D magnetostatic field analysis. The proposed method is applied to the design of a magnet pattern having “one-sided flux” and the design results show that the optimized magnet pattern appears as one or two Halbach arrays according to the shape of the design domain. The optimization process is accomplished by using sequential linear programming and the adjoint variable method. </P>