パルスパワーにより発生する水中衝撃波を利用した破砕技術に関する研究 Study on Using Underwater Shock Wave Generated by Electric Pulsed Power for Destruction of Structures

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Pulsed power is a short pulse, high energy generated by an explosive charge or high current which can be utilized for various applications. Explosive is a kind of pulsed power source, but the legal restrictions imposed on the usage of explosives are very severe and also it is necessary to strive for the handling, maintenance and safety of explosives. Rather than using explosive, electric pulsed power can be used to generate shock waves, as the technique is simple and safe. The aim of this study is to effectively use the underwater shock wave generated by the electric pulsed power for the destruction of structure and rocks. In this study, the underwater shock wave generated by gap discharge (GD method) or metal wire explosion (WE method) using the electric pulsed power was evaluated by optical observation using a high-speed camera, pressure measurement, and deformation of aluminum pipe.<BR>The energy of an underwater shock wave can be improved by increasing the charge energy of a capacitor. The underwater shock wave generated by GD method showed the existence of many shock waves. The duration of the pressure pulse is long in this phenomenon, but a peak pressure of underwater shock wave by the WE method is higher than the GD method. In the deformation experiments of aluminum pipe, the bulging produced by the WE method has about 2 times that of the GD method.

収録刊行物

  • Journal of MMIJ : journal of the Mining and Materials Processing Institute of Japan  

    Journal of MMIJ : journal of the Mining and Materials Processing Institute of Japan 123(2), 82-86, 2007-02-25 

    The Mining and Materials Processing Institute of Japan

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各種コード

  • NII論文ID(NAID)
    10018576857
  • NII書誌ID(NCID)
    AA12188381
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    18816118
  • NDL 記事登録ID
    8727711
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-315
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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