遺伝的アルゴリズム及び非定常逆解法を用いた管路内の漏れの探索 Leak Detection in Pipe Using Genetic Algorithm and Inverse Transient Method

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流体輸送管路内の漏れの探索法を提示している。An Inverse transient method by genetic algorithm(GA) was applied to leak detection in pipe line.Transient flow caused by valve oreration was calculated using the charasteristics method. Measured pressure waves at one or two points and calculated pressure waves at those points are evaluated to minimize the difference between measured and calculated values.The location and discharge of leak were selected as calibration parameters of GA.The unsteady pipe friction was approximated to be quasi-steady for the calculation of unsteady pressure.Moreover,the effect of the errors in the pipe friction factors on leak detection was discussed.As the result of thepresent study,leak detection was found to be possible at the node as well as any point in the pipeline.Furthermore,the pressure data at multi-points for GA method was found to be effective to improve the leak detection accuracy.

An inverse transient method by genetic algorithm (GA) was applied to leak detection in pipe line. Transient flow caused by valve operation was calculated using the characteristics method. Measured pressure waves at one or two points and calculated pressure waves at those points are evaluated to minimize the difference between measured and calculated values. The location and discharge of leak were selected as calibration parameters of GA. The unsteady pipe friction was approximated to be quasi-steady for the calculation of unsteady pressure. Moreover, the effect of the errors in the pipe friction factors on leak detection was discussed. As the result of the present study, leak detection was found to be possible at the node as well as any point in the pipeline. Furthermore, the pressure data at multi-points for GA method was found to be effective to improve the leak detection accuracy.

収録刊行物

  • ターボ機械 = Turbomachinery  

    ターボ機械 = Turbomachinery 36(3), 173-181, 2008-03-10 

    ターボ機械協会

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各種コード

  • NII論文ID(NAID)
    10021103655
  • NII書誌ID(NCID)
    AN00004836
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03858839
  • NDL 記事登録ID
    9391179
  • NDL 雑誌分類
    ZN15(科学技術--機械工学・工業--流体機械)
  • NDL 請求記号
    Z16-978
  • データ提供元
    CJP書誌  CJP引用  NDL  IR  J-STAGE 
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