An Adaptive FEM Based on Magnetic Field Conservation Applying to Ferromagnetic Problems

作者：Noguchi So^*; Matsutomo Shinya; Cingoski Vlatko

来源：IEEE Transactions on Magnetics, 2018, 54(3): 7204704.

DOI：10.1109/TMAG.2017.2754862

• Adaptive finite-element method (FEM)
• error estimation
• magnetic field conservation
• non-conforming mesh

We have previously been proposed a novel adaptive finite-element method (FEM) based on a magnetic field conservation indicator and a non-conforming mesh-refinement technique. However, we have applied to a very simple model consisting of a single permanent magnet for basic verification of the proposed method. In this paper, we have improved an error indicator, and tried to apply a newly proposed adaptive FEM to more complicated models, where ferromagnetic material is included. The newly proposed method is superior in torque error estimation to the Zienkiewicz-Zhu error estimation method in a 3-D permanent magnet motor model.

• 出版日期2018-3