Fuzzy regularization method for ill-posed problems on ECT with Laplace transform BEM

Fuzzy regularization method for ill-posed problems on ECT with Laplace transform BEM
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拉普拉斯变换边界元法求解ECT不适定问题的模糊正则化方法

DOI:
10.1109/20.877646
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发表时间:
2000
影响因子:
2.1
通讯作者:
M. Enokizono
M. Enokizono
中科院分区:
工程技术4区
文献类型:
--
作者:
Y. Tsuchida;M. Enokizono

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提出了一种涡流检测中裂纹形状的识别方法。为了利用脉冲激励,采用拉普拉斯变换的边界元法进行数值分析。裂纹的形状直接由边界元的积分方程确定。对未知变量的系数矩阵采用奇异值分解和模糊推理的正则化方法,得到合适的裂纹形状。
This paper presents an identification method of crack shapes on eddy current testing. In order to use the impulse excitation, numerical analysis is performed by the boundary element method with Laplace transform. The shapes of cracks are identified directly from the integral equation of BEM. The singular value decomposition and regularization method by means of fuzzy inference are applied in the coefficient matrix for the unknown variables to obtain proper crack shapes.