심해 압력용기 내부 프레임 보강구조 최적설계

Abstract

ROV (remotely-operated vehicle) and AUV (autonomous unmmanded vehicle) are equipped with a deep-sea pressure vessel to protect the internal electronic-electrical equipment from the high external water pressure. Thus, the pressure vessel should not only guarantee structural safety but also minimize weight. Cylindrical-type pressure vessel is one of the best design for high pressure in deep-sea. Internal frame is necessary to arrange electronic electrical equipment in the pressure vessel. Internal frame consist of circular reinforcement plates and crossing frame member. Circular reinforcement plates act as a stiffener in the high pressure operation environment and act as guidance for installation. Thus tolerance of circular reinforcement plate should be considered for high water pressure and installation environment. Besides, cylinder thickness can be reduced by support of reinforcement plate. In this study, design optimization of the inner frame structure for deep-sea pressure vessel is conducted to guarantee structural safety and minimize weight.uld not only guarantee structural safety but also minimize weight. Cylindrical-type pressure vessel is one of the best design for high pressure in deep-sea. Internal frame is necessary to arrange electronic electrical equipment in the pressure vessel. Internal frame consist of circular reinforcement plates and crossing frame member. Circular reinforcement plates act as a stiffener in the high pressure operation environment and act as guidance for installation. Thus tolerance of circular reinforcement plate should be considered for high water pressure and installation environment. Besides, cylinder thickness can be reduced by support of reinforcement plate. In this study, design optimization of the inner frame structure for deep-sea pressure vessel is conducted to guarantee structural safety and minimize weight.