Ocean and Polar Research

Korea Institute of Ocean Science & Technology (한국해양과학기술원)
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Experimental Study on Compressibility Modulus of Pressure Compensation Oil for Underwater Vehicle

심해 장비용 압력보상유의 압축성 계수 측정을 위한 실험적 연구

  • Kim, Jin-Ho (Korea Research Institute of Ships & Ocean Engineering, KIOST) ;
  • Yoon, Suk-Min (Korea Research Institute of Ships & Ocean Engineering, KIOST) ;
  • Hong, Sup (Korea Research Institute of Ships & Ocean Engineering, KIOST) ;
  • Min, Cheon-Hong (Korea Research Institute of Ships & Ocean Engineering, KIOST) ;
  • Sung, Ki-Young (Korea Research Institute of Ships & Ocean Engineering, KIOST) ;
  • Yeu, Tae-Kyeong (Korea Research Institute of Ships & Ocean Engineering, KIOST) ;
  • Choi, Hyuek-Jin (Korea Research Institute of Ships & Ocean Engineering, KIOST) ;
  • Lee, Seung-Guk (Korea Research Institute of Ships & Ocean Engineering, KIOST)
  • 김진호 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 윤석민 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 홍섭 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 민천홍 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 성기영 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 여태경 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 최혁진 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 이승국 (한국해양과학기술원 부설 선박해양플랜트연구소)
  • Received : 2014.10.01
  • Accepted : 2015.02.02
  • Published : 2015.03.30
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Abstract

In order to determine the appropriate volume of the a pressure compensator of deep seabed mining robots, this paper reports on an experimental test for oil volume change in an oil-filled box. At the design stage of underwater robots, it is crucial to determine the capacity of the hydraulic compensator which is replenished as much as the contracted oil volume of the robots. A pilot mining robot, MienRo was designed to work under 6,000 m in the deep sea. The hydraulic actuating oil and pressure compensating oil of MineRo may be exposed at a hydrostatic pressure environment of 600 bar. Although the oil can be assumed to be incompressible, its volume is actually changed under high pressure conditions due to air contained in the oil and oil contraction. To determine the capacity of the pressure compensator, the oil contraction rate should be verified through an experimental test using a hyperbaric chamber.

Keywords

References

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