A proposal of finite-element analysis considering two-dimensional magnetic properties
A proposal of finite-element analysis considering two-dimensional magnetic properties
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DOI：
10.1109/20.996229
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发表时间：
2002-08
影响因子：
2.1
通讯作者：
K. Fujiwara;T. Adachi;N. Takahashi
中科院分区：
文献类型：
--
作者：
K. Fujiwara;T. Adachi;N. Takahashi
本文研究了用Enokizono提出的有效各向异性介电系数分析各向异性材料中磁场的方法。结果表明，Enokizono模型可以转化为另一种具有常规形式的模型。通过扩展这种传统形式的检查，一个新的有限元公式，考虑到二维（2-D）的磁性提出。由于高磁通密度区域的二维磁特性建模在磁性器件的实际分析中具有重要意义，因此对磁特性的外推方法进行了研究。结果表明，在考虑二维磁特性的非线性磁场分析中，Bezier插值对稳定Newton-Raphson（N-R）迭代的收敛特性是相当有效的。
A technique for analyzing the magnetic field in anisotropic material using the effective anisotropic reluctivity proposed by Enokizono is examined. It is shown that the Enokizono model can be transformed into another model having a conventional form. By expanding the examination of such a conventional form, a new finite element formulation for taking account of the two-dimensional (2-D) magnetic property is proposed. As the modeling of the 2-D magnetic property at the high flux density region is important in the practical analysis of the magnetic device, the extrapolation method of the magnetic property is examined. It is shown that the Bezier interpolation is fairly effective to stabilize the convergence characteristic of the Newton-Raphson (N-R) iteration in the nonlinear magnetic field analysis, taking account of the 2-D magnetic property.