摘要
提出并推导了任意表面棱边单元法的基函数 ,其特性和三维棱边单元法一样 ,保持切向分量连续。用一种棱边有限元法—边界元法来离散微分和积分方程 ,用双共轭梯度法求解线性方程组 ,改善解的收敛性能。用该法计算了物体的固有频率和金属物的近场信号 ,模拟了金属军事目标的电磁响应 ,以此推测其材料特性和大小 。
Surface basis function of edge element is derived and implemented to discretize the integral equation in this paper. Edge based finite element method with boundary element method (FEM-BEM) is presented for the electromagnetic induction of metal targets. Bi-conjugate gradient method is used for the improvement of the convergence of solution. The proposed model is used to calculate natural resonant frequencies and electromagnetic response of military targets. The numerical results deciding the material feature and size match the experimental ones.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2004年第9期17-18,21,共3页
High Voltage Engineering
