IEEE Transactions on Magnetics · 2006 · 99 citations · 6 references
Numerical AnalysisEngineeringThree-dimensional Finite-element ModelsMechanical EngineeringStructural OptimizationComputational MechanicsTime DiscretizationLaminated Iron CoresMagnetic MaterialsNumerical SimulationMagnetohydrodynamicsComputational ElectromagneticsHomogenization (Chemistry)Boundary Element MethodElectrical EngineeringLaminated Ring CoreNumerical Method For Partial Differential EquationFinite Element MethodNatural SciencesStructural MechanicsMultiscale Modeling
The authors present a novel nonlinear homogenization technique for laminated iron cores in three-dimensional (3-D) finite-element (FE) models of electromagnetic devices. The technique takes into account the eddy current effects in the stacked core without the need of modeling all laminations separately. A nonlinear constitutive magnetic law is considered. The system of nonlinear algebraic equations obtained after time discretization is solved by means of the Newton-Raphson scheme. By way of validation, the method is applied to a 3-D FE model of a laminated ring core with toroidal coil
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