Ultrasonic Cleaner using Two Transducers for Ship Hull Cleaning Robot

DOI 機関リポジトリ HANDLE
  • Nishida Yuya
    Dept. of Human Intelligence Systems, Kyushu Institute of Technology
  • Matsumura Toshihiro
    Dept. of Human Intelligence Systems, Kyushu Institute of Technology
  • Ishii Kazuo
    Dept. of Human Intelligence Systems, Kyushu Institute of Technology

抄録

Fuel consumption of the ship gets worse by barnacles and stains put on its bottom, so that the ship hull should be cleaned regularly. Usual methods such as cleaning by special divers and cleaning after pulling up to the dock are not used frequently due to those high cost and the heavy burden on cleaners. We proposed a cleaning method using underwater vehicle with brushes, however there is a possibility to remove paints on the hull. To improve cleaning performance of the underwater vehicle, the ultrasonic cleaner is developed by using cavitation occurred by sound waves of the acoustic transduces. The cleaner generates sound waves with sound pressure of 0.2MPa or more required to occur cavitation at the point where sound waves from two transducers overlap. In experimental results, the cleaner occurred cavitation enough to make two holes in the aluminum foil located 50mm away from transducers.

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