Transient eddy-current calculation with the FI-method
Transient eddy-current calculation with the FI-method
复制标题
使用 FI 方法进行瞬态涡流计算
DOI：
10.1109/20.767155
复制
发表时间：
1999
影响因子：
2.1
通讯作者：
T. Weiland
中科院分区：
文献类型：
--
作者：
M. Clemens;T. Weiland
本文介绍了基于麦克斯韦网格方程的一致性有限积分（FI）方法的时域公式，该方法允许使用各种隐式时间步进技术计算缓变电磁场。由此产生的大型稀疏线性方程组必须通过迭代方法求解每个时间步长。预条件共轭梯度法可以有效地计算非增广（准）静力问题。数值结果显示为TEAM车间问题7和SRC高密度磁头问题，可以计算超过一百万自由度。
This paper introduces time-domain formulations based on the Maxwell grid equations of the consistent finite integration (FI) method which allows calculation of slowly-varying electromagnetic fields with various implicit time-stepping techniques. The resultant large sparse linear systems of equations have to be solved by iterative methods for each time step. The preconditioned conjugate gradient methods allow the calculation of nongauged (quasi-)static problems efficiently. Numerical results are shown for the TEAM workshop problem 7 and an SRC high density magnetic head problem, which could be calculated with more than one million degrees of freedom.