Minimization of detent force of perpendicular PMDLSM using response surface method and finite element method

This paper presents an optimum design of perpendicular PMDLSM (Permanent Magnet Double-sided Linear Synchronous Motor with Perpendicular Arrangement) to minimize the detent force. The optimum method uses response surface method and 3D finite element method. The design variables of the machine are the primary core width and thickness, and magnet width, thickness and length. Object function is to minimize the detent force while maintaining the thrust of the basic model. Our results showed that the thrust force of the optimum design increased by 8.1[N] and the detent force decreased by 12.4[N], which are 9.9% increase and 81.6% decrease, respectively.