Title :
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
fDate :
9/1/1998 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
