Abstract
Purpose
– The purpose of the paper is to show that how a new magnetic circuit, which the paper could not imagined beforehand, may be obtained using a newly developed ON/OFF topology optimization method by applying it to the design of magnetic head and motor.
Design/methodology/approach
– ON/OFF optimization technique combined with finite element method.
Findings
– It is shown that 3-D topology optimization of SPT head, in which the recording head is increased and the leakage flux is decreased, is possible using the proposed method. The optimization of IPM motor with the minimum torque ripple and the maximum toque is also examined.
Originality/value
– 3-D ON/OFF optimization method applied to practical problems considering the nonlinearity and rotation of rotor, etc.
Subject
Applied Mathematics,Electrical and Electronic Engineering,Computational Theory and Mathematics,Computer Science Applications
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