In recent years edge finite element method has become quite popular in modeling the three-dimensional rotating electrical machine due to its ability to represent the physical behavior of field along interface correctly. However, modeling becomes complex when significant mesh distortion occurs along a sliding surface due to movement. A remeshing step is needed, which increases computational cost. In order to avoid remeshing, efficient numerical methods have already been developed to model movement in the three-dimensional rotating electrical machine under edge finite element method. Nevertheless, very little research has been carried out on comparing these methods. The main objective of this paper is to compare the edge-based interpolation and mortar edge element method. To improve the accuracy of edge-based interpolation for tetrahedral mesh, we propose an improved strategy. Numerical results illustrate the accuracy, robustness and performance of the methods. A detailed comparison is presented based on the criteria mentioned above.

中文翻译：

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滑动面原理下边缘有限元法在磁矢量势公式中模拟三维旋转电机的方法综述

近年来，边缘有限元方法在三维旋转电机建模中变得非常流行，因为它能够正确表示沿界面的场物理行为。然而，当滑动表面由于移动而发生显着的网格变形时，建模会变得复杂。需要重新网格化步骤，这会增加计算成本。为了避免重新网格划分，已经开发了有效的数值方法来在边缘有限元方法下对三维旋转电机中的运动进行建模。然而，很少有研究比较这些方法。本文的主要目的是比较基于边缘的插值法和砂浆边缘元法。为了提高四面体网格基于边缘的插值精度，我们提出了一个改进的策略。数值结果说明了方法的准确性、鲁棒性和性能。根据上述标准进行详细比较。