Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Numerical Analysis Methods for Eddy Current Testing for Heat Exchanger Tube with Axi-symmetric Defects

열교환기 전열관의 결함에 대한 와전류 탐상 수치해석방법

  • Kim, Chang-Wook (Department of Electrical Engineering, Soongsil University) ;
  • Seo, Jang-Won (Department of Electrical Engineering, Soongsil University) ;
  • Kim, Shin (Department of Electrical Engineering, Soongsil University) ;
  • Lee, Hyang-Beom (Department of Electrical Engineering, Soongsil University)
  • 김창욱 (숭실대학교 전기공학과) ;
  • 서장원 (숭실대학교 전기공학과) ;
  • 김신 (숭실대학교 전기공학과) ;
  • 이향범 (숭실대학교 전기공학과)
  • Published : 2000.07.17
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Abstract

In this paper, a numerical analysis algorithm of eddy current testing(ECT) for heat exchanger tube with axi-symmetric defects using finite element method(FEM) is presented. In the ECT FEM analysis, we used trianglular and rectangular elements for exact signal of ECT for variable shape of defects. This paper presents a systematic and efficient numerical analysis algorithm for ECT. We employ the LU decomposition and Cholesky method for solving the system matrix. This numerical analysis algorithm is effectively applied to heat exchanger tube with defects.

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