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In this paper. a novel MS-LMFM motor has been proposed and several varied geometric parameters have been optimized for maximum thrust force. Furthermore. a comparison between the proposed and existing motor has been carried out under fixed copper loss by FE method. Compared with the existing motor. it is confirmed that the irreversible demagnetization risk of the proposed motor is reduced. Also. the proposed motor can exhibit both greatly enhanced force performances and relatively small losses without extra cost. which is more suitable for high thrust force and long stroke applications. Finally. a 3D modeling MS-LMFM motor has been built and simulated. verifying the effectiveness of 2D FE analysis.
