Inverse analysis for ECT models formulated by Laplace transform BEM with singular value decomposition and fuzzy inference
Inverse analysis for ECT models formulated by Laplace transform BEM with singular value decomposition and fuzzy inference
复制标题
拉普拉斯变换边界元法奇异值分解和模糊推理的 ECT 模型反演分析
DOI：
10.1109/20.717680
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发表时间：
1998
影响因子：
2.1
通讯作者：
M. Enokizono
中科院分区：
文献类型：
--
作者：
Y. Tsuchida;K. Shibao;M. Enokizono
本文提出了用拉普拉斯变换表示的边界元法（BEM）的反分析方法，并用奇异值分解和模糊推理稳定了反分析矩阵。将该方法应用于涡流检测中的裂纹形状识别。在传统方法中，由于存在不适定问题，某些裂纹形状无法确定，而新方法通过稳定矩阵来识别裂纹形状。本文的研究表明，该方法适用于ECT的裂纹形状估计。
This paper presents inverse analysis which is formulated by boundary element method (BEM) with Laplace transform and the matrices for inverse analysis are stabilized with singular value decomposition and fuzzy inference. The proposed method is applied to crack shape identification on an eddy current testing (ECT). In conventional method, some crack shapes can not be obtained because of an ill-posed problem, the new method can identify crack shapes by stabilizing the matrices. In this paper, it is shown that the proposed method is applicable to the crack shape estimation of ECT.