Large-scale analysis of eddy-current problems by the hybrid finite element-boundary element method combined with the fast multipole method
Large-scale analysis of eddy-current problems by the hybrid finite element-boundary element method combined with the fast multipole method
复制标题
混合有限元-边界元法结合快速多极子法对涡流问题进行大规模分析
DOI：
10.1109/tmag.2006.871630
复制
发表时间：
2006
影响因子：
2.1
通讯作者：
S. Wakao
中科院分区：
文献类型：
--
作者：
Y. Takahashi;S. Wakao
本文用有限元和边界元混合方法(FE-BE)对大尺度涡流进行了分析。我们将快速多极子方法(FMM)引入到我们发展的两种混合FE-BE格式中。为了进一步减少计算时间，我们提出了一种新的适用于混合FE-BE方法和FMM的预条件技术。此外，我们还改进了利用磁场强度的混合方法中的FMM计算过程。文中还给出了一些数值结果，证明了这些方法的有效性。
This paper shows large-scale eddy-current analysis by a hybrid finite-element and boundary-element (FE-BE) method. We introduce the fast multipole method (FMM) into the two kinds of hybrid FE-BE formulations developed by ourselves. To achieve more reduction of CPU time, we propose a novel preconditioning technique suitable for the hybrid FE-BE methods with the FMM. Furthermore, we improve the FMM calculation process in the hybrid method using magnetic field intensity. Some numerical results that demonstrate the effectiveness of these approaches are also presented