...Kou Takenouchi; Shingo Hiruma; Takeshi Mifune; Tetsuji Matsuo Purpose The purpose of this study is to apply the topology and parameter optimization (TPO) to interior permanent magnet (IPM) motors to obtain the optimized shape with higher torque, lower ripple and sufficient mechanical strength...

.../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...