东南大学学报（英文版）2004，Vol.20Issue(2)：195-199,5.
无损检测信号快速三维有限元模拟的组合方法
Combined method for fast 3-D finite element modeling of nondestructive testing signal
摘要
Abstract
A combined method for the fast 3-D finite element modeling of defect responses in nondestructive testing of electromagnetics is presented. The method consists of three numerical techniques: zoom-in technique, difference field technique and iterative solution technique. Utilizing the zoom-in technique, the computational zone focuses on a relatively small domain around the defect. Employing the difference field technique, the axisymmetrical field solution corresponding to the case with no defect can be used to simplify the mesh generation and obtain the modeling results quickly. Using the iterative solution technique, the matrix equation system in the 3-D finite element modeling of nondestructive probe signals can easily be solved. The sample calculation shows that the presented method is highly effective and can consequently save significant computer resources.关键词
无损检测/有限元法/模拟/计算技术Key words
nondestructive testing/finite element method/modeling/computational technique分类
信息技术与安全科学引用本文复制引用
林鹤云..无损检测信号快速三维有限元模拟的组合方法[J].东南大学学报（英文版）,2004,20(2):195-199,5.基金项目
The National Natural Science Foundation of China (No. 50277005). （No. 50277005）
