期刊
IEEE TRANSACTIONS ON MAGNETICS
卷 48, 期 2, 页码 931-934出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMAG.2011.2173922
关键词
Level set method; nonlinear ferromagnetic material; permanent magnet; topology optimization; voice coil motor
In this paper, a voice coil motor is optimized using the single-phase and the multi-phase level set method, and the magnetic saturation effect is considered in the optimization. The normal velocities on the moving boundaries are calculated by a design sensitivity analysis (DSA) using the adjoint variable method (AVM). In the first numerical example using a C-core actuator, the level set based optimization is compared with conventional topology optimization. In the second numerical example of the voice coil motor, optimizations using the single-phase and the multi-phase level set method are performed to maximize the Lorentz force on the moving coil by means of the optimal shapes of the permanent magnet and the ferromagnetic material in a design domain.
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