Forward and inverse simulations of pipe wall thinning using pulsed eddy current signals

Shejuan Xie, Toshiyuki Takagi, Tetsuya Uchimoto, Zhenmao Chen, Li Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

In this paper, an efficient forward numerical simulation solver for pulsed eddy current testing (PECT) signals has been proposed and developed based on the Fourier series method combined with an interpolation strategy and the database approach. Initially, the PECT signal simulation method based on the Fourier series scheme and an interpolation approach is described. Second, the database type fast numerical solver for single frequency ECT problem is introduced to the Fourier-series-based PECT simulation to enhance its simulation efficiency. In addition, an inversion algorithm of PECT has also been proposed and validated, based on the developed efficient simulator of PECT signals and a deterministic optimization strategy, for the profile reconstruction of wall thinning in pipes of nuclear power plants (NPPs). Through inverse analysis using the simulated PECT signals and signals with random noise, the efficiency and the robustness of the proposed PECT inversion algorithm have been demonstrated.

Original languageEnglish
Title of host publicationSimulation and Modeling Related to Computational Science and Robotics Technology. Proceedings of SiMCRT 2011
EditorsFumio Kojima, Futoshi Kobayashi, Hiroyuki Nakamoto
Pages85-99
Number of pages15
DOIs
Publication statusPublished - 2012

Publication series

NameStudies in Applied Electromagnetics and Mechanics
Volume37
ISSN (Print)1383-7281
ISSN (Electronic)1879-8322

Keywords

  • Local wall thinning
  • forward simulation
  • inverse simulation
  • numerical simulation
  • pulsed ECT
  • quantitative nondestructive testing

ASJC Scopus subject areas

  • Mechanical Engineering
  • Electrical and Electronic Engineering

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