Inverse analysis for ECT models formulated by Laplace transform BEM with singular value decomposition and fuzzy inference

Author

Tsuchida, Y. ; Shibao, K. ; Enokizono, M.

Author_Institution

Fac. of Eng., Oita Univ., Japan

Volume

34

Issue

5

fYear

1998

fDate

9/1/1998 12:00:00 AM

Firstpage

2916

Lastpage

2919

Abstract

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

Keywords

Laplace transforms; boundary-elements methods; crack detection; eddy current testing; inference mechanisms; inverse problems; singular value decomposition; ECT model; Laplace transform; boundary element method; crack shape; eddy current testing; fuzzy inference; inverse analysis; matrix stability; singular value decomposition; Eddy currents; Electrical capacitance tomography; Integral equations; Inverse problems; Laplace equations; Matrix decomposition; Maxwell equations; Shape; Singular value decomposition; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.717680

Filename

717680