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This paper presents a multidisciplinary design analysis method for permanent magnet (PM) motors with soft magnetic composite (SMC) cores. Firstly, a multidisciplinary design analysis process is investigated to evaluate the performance of these motors, which includes electromagnetic analysis (based on new core loss model), thermal analysis, and mechanical modal analysis. Then a lumped 3-D thermal network...
The finite-element boundary integral method (FEBI) combining with the multilevel fast multipole algorithm (MLFMA) is well known as a powerful tool to solve the complex scattering problems. Unfortunately, because the coefficient matrix arising from the FEBI is badly conditioned, this hybrid method suffers from a very slow convergence rate with iterative solvers, and even disconverges for a very complex...
A domain decomposition method (DDM) combined with edge-based finite-element method, namely the dual-primal finite element tearing and interconnecting (FETI-DP), is formulated to solve the problems of finite periodic metamaterial arrays. In this method, the entire computational domain is partitioned into several non-overlapping subdomains. At the subdomain interfaces, Robin-type transmission condition...
This paper presents the method for calculating the differential inductances of a tubular linear permanent magnet (PM) actuator as a function of armature or mover position by the finite element (FE) method. The magnetic saliencies due to both the machine structure and magnetic saturation and the end effects are included in the inductance profile.
In this paper, we proposed an symmetric successive over-relaxation conjugate gradient (SSOR-CG) iterative method for solving systems resulting from a formulation of hierarchical vector FEM analysis of 3D electromagnetic problems. Numerical results for a cylindrical cavity resonator are conducted to demonstrate the fast convergence rate of this proposed method, when compared with conventional CG method
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