MSFEM to Simulate Eddy Currents in Laminated Iron

Summary. The simulation of eddy currents in laminated nonlinear iron cores by the finite element method is of great interest in the design of electrical devices. The dimen-sions of the iron core and the thickness of the laminates are very different. Thus, finite element models considering each laminate require many finite elements leading to ex-tremely large systems of equations. A multi-scale finite ele-ment method has been developed to cope with this problem. Numerical simulations in 2D demostrate an excellent accu-racy and very low computational costs.