Numerical approach for ECT by using boundary element method with Laplace transform
Numerical approach for ECT by using boundary element method with Laplace transform
复制标题
使用拉普拉斯变换边界元法进行 ECT 的数值方法
DOI：
10.1109/20.582753
复制
发表时间：
1997
影响因子：
2.1
通讯作者：
K. Shibao
中科院分区：
文献类型：
--
作者：
M. Enokizono;T. Todaka;K. Shibao
本文利用边界元法和拉普拉斯变换进行了反分析。将该方法应用于电涡流检测中的一个简单问题。根据导电试件敏感表面上的瞬时涡流分布和提离空间中的磁通密度估计了导电试件中的某些裂纹形状。由于暂态行为包含了各种频率分量的信息，因此该方法适用于相对较小的裂纹的形状估计。
This paper presents an inverse analysis by using BEM with Laplace transform. The method is applied to a simple problem in the eddy current testing (ECT). Some crack shapes in a conductive specimen are estimated from distributions of the transient eddy current on its sensing surface and magnetic flux density in the lift-off space. Because the transient behavior includes information on various frequency components, the method is applicable to the shape estimation of a comparatively small crack.