Topology optimization of magnetic actuator based on a level-set and a phase-field approach

This paper aims at the development of a topology optimization method for magnetic actuator design using a levelset model that incorporates a fictitious interface energy model based on concepts in the phase-field method. The optimization problem is formulated for maximizing performance of a magnetic actuator with the ferromagnetic material constraint. The update scheme for implicit moving boundaries is developed based on the time evolutional equations. The proposed method is applied to the structural design of magnetic actuator and confirmed the effectiveness for achieving optimal configurations that deliver enhanced performance. �� 2010 IEEE