| Title |
Topology Optimization of Electromagnetic Systems Using Material Sensitivity Analysis |
| Authors |
변진규(Byun Jin-Kyu) ; 최홍순(Choi Hong-Soon) ; 한송엽(Hahn Song-Yop) ; 박일한(Park Il-Han) |
| Keywords |
위상 최적설계 ; 민감도해석 ; 유한요소법 ; 전기기기 ; |
| Abstract |
The conventional optimization study for electromagnetic systems has been mostly on the shape or size optimization. The goal for these optimization methods is to improve performance of electromagnetic systems by optimizing the interface shape of two different materials while their given layout or initial topology are held. The feasible topology can be diverse and an appropriate topology will give much better design results. In this paper we propose a theory and an algorithm for topology optimization of electromagnetic systems, which are based on the finite element method. The topology optimization technique employes a direct searching method of sensitivity analysis in which the information of material sensitivity is used. Two numerical examples of a switched reluctance motor and an electrostatic actuator of MEMS are tested and their design results show that the optimization method is valid and useful for the topology and basic layout design of electromagnetic systems. |