Convergence Acceleration of Time-Periodic Electromagnetic Field Analysis by the Singularity Decomposition-Explicit Error Correction Method
Convergence Acceleration of Time-Periodic Electromagnetic Field Analysis by the Singularity Decomposition-Explicit Error Correction Method
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DOI：
10.1109/tmag.2010.2043721
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发表时间：
2010-08-01
影响因子：
2.1
通讯作者：
Wakao, Shinji
中科院分区：
文献类型：
--
作者：
Takahashi, Yasuhito;Tokumasu, Tadashi;Wakao, Shinji
本文提出了一种在时间周期暂态非线性涡流分析中提高收敛到稳态的新方法。该方法基于时间周期有限元方法和奇点分解-显式误差校正方法，能够提取与被分析系统的大时间常数对应的收敛较差的误差分量。对提取的误差分量的校正有效地加速了收敛到稳态。数值结果验证了该方法的有效性。
This paper proposes a novel method for the improvement of the convergence to a steady state in time-periodic transient nonlinear eddy-current analyses. The proposed method, which is based on the time-periodic finite element method and the singularity decomposition-explicit error correction method, can extract poorly converged error components corresponding to the large time constants of an analyzed system. The correction of the extracted error components efficiently accelerates the convergence to a steady state. Numerical results verify the effectiveness of the proposed method.