대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2000년도 하계학술대회 논문집 B
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- Pages.831-833
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- 2000
열교환기 전열관의 결함에 대한 와전류 탐상 수치해석방법
Numerical Analysis Methods for Eddy Current Testing for Heat Exchanger Tube with Axi-symmetric Defects
- 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) ;
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Lee, Hyang-Beom
(Department of Electrical Engineering, Soongsil University)
- 발행 : 2000.07.17
초록
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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