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J. Ocean Eng. Technol. 2004;18(4):52-58.    

A Study on the Results of the Pressure Vessel Design, Structural Analysis, and Pressure Test of the Semi-Autonomous Underwater Vehicle (SAUV)
JOUNG TAE-HWAN;LEE CHONG-MOO;HONG SEOK-WON;KIM JIN-BONG;AN CHIN-WOO;
Korea Research Institute of Ships and Ocean Engineering;Korea Research Institute of Ships and Ocean Engineering;Korea Research Institute of Ships and Ocean Engineering;Korea Institute of Machinery and Materials;Agency for Defense Development;
복합재 반자율 무인잠수정(SAUV)의 내압선체 설계, 구조해석 및 내압시험 결과에 관한 검토
정태환;이종무;홍석원;김진봉;안진우;
한국해양연구원 해양개발시스템연구본부;한국해양연구원 해양개발시스템연구본부;한국해양연구원 해양개발시스템연구본부;한국기계연구원 재료공정연구부;국방과학연구소 제2체계개발본부;
© 2004 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Keywords: ASUV, FRP, FEA, Buckling, Pressure Test
핵심용어: 반자율 무인잠수정, 섬유강화 플라스틱, 유한요소해석, 좌굴, 압력시험
Abstract
A Semi-Autonomous Underwater Vehicle (SAUV), capable of simple work on the seabed, is under development in KRISO-KORDI. This SAUV pressure vessel is composed of fiberglass reinforced plastic (FRP), and is also manufactured to carry electronic equipment. The objective of this paper is to describe the safety check for the pressure vessel. This is achieved fly conducting structural analysis and testing in a pressure tank. Strain and stress test results, under unit load, are obtained fly using ANSYS in linear structural analysis. Local buckling analysis are performed with NASTRAN at the middle oj the cylindrical hull. The first test, using linear structural analysis, is unsuccessful, as buckling occurred. During the second test, linear structural analysis, combined with local buckling analysis, is conducted. There is no buckling up to 250 m when both ANSYS and NASTRAN are used.


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