Volume 37 Issue 5
Dec.  2017
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Article Navigation >  Journal of University of Electronic Science and Technology of China  > 2008  >  37(5): 797-800

LI Xun-bo, LI Xiang, CHEN Liang, WANG Hai-dong, YUAN Tai-wen, HUANG Zuo-ying. Effect Analysis of Nearby Defect on MFL in Steel Pipeline[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(5): 797-800.
Citation: LI Xun-bo, LI Xiang, CHEN Liang, WANG Hai-dong, YUAN Tai-wen, HUANG Zuo-ying. Effect Analysis of Nearby Defect on MFL in Steel Pipeline[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(5): 797-800.
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Effect Analysis of Nearby Defect on MFL in Steel Pipeline

  • 1.

    School of Mechatronics Engineering,University of Electronic Science and Technology of China Chengdu 610054;

  • 2.

    School of Electronic and Electric Engineering,Shanghai Jiaotong University Minxing Shanghai 200240

  • Received Date: 2007-09-15
  • Rev Recd Date: 2008-03-19
  • Publish Date: 2008-10-15
  • The magnetic flux leakage (MFL) method is widely used in-line inspection technique for the evaluation of gas and oil pipelines. The actual status of the defects in the pipeline is very complex. It is very difficult to research the changing rule of magnetic flux leakage field by using physics experiment method. In this paper, the MFL signals obtained during the inspection of steel pipelines has been simulated using 3D finite element analysis. The interaction of the adjacent defects has been studied. The numerical simulations imply that the adjacent defects have significant effects on the character of the MFL signals. The results show that the effect is minimal with the parallel alignment defect, and the effect is maximal with the group defect.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Effect Analysis of Nearby Defect on MFL in Steel Pipeline

  • 1. School of Mechatronics Engineering,University of Electronic Science and Technology of China Chengdu 610054;
  • 2. School of Electronic and Electric Engineering,Shanghai Jiaotong University Minxing Shanghai 200240
  • Received Date: 2007-09-15
  • Rev Recd Date: 2008-03-19
  • Publish Date: 2008-10-15

Abstract: The magnetic flux leakage (MFL) method is widely used in-line inspection technique for the evaluation of gas and oil pipelines. The actual status of the defects in the pipeline is very complex. It is very difficult to research the changing rule of magnetic flux leakage field by using physics experiment method. In this paper, the MFL signals obtained during the inspection of steel pipelines has been simulated using 3D finite element analysis. The interaction of the adjacent defects has been studied. The numerical simulations imply that the adjacent defects have significant effects on the character of the MFL signals. The results show that the effect is minimal with the parallel alignment defect, and the effect is maximal with the group defect.

LI Xun-bo, LI Xiang, CHEN Liang, WANG Hai-dong, YUAN Tai-wen, HUANG Zuo-ying. Effect Analysis of Nearby Defect on MFL in Steel Pipeline[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(5): 797-800.
Citation: LI Xun-bo, LI Xiang, CHEN Liang, WANG Hai-dong, YUAN Tai-wen, HUANG Zuo-ying. Effect Analysis of Nearby Defect on MFL in Steel Pipeline[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(5): 797-800.
shu

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