수심 2000m 용 두꺼운 내압용기의 설계와 구조해석

Abstract

In this paper, an aluminium pressure vessel (cylinder) for 2000 m water depth is designed and analyzed. In ASME pressure vessel design rule, the first level is up to 2000 m depth and then more strict design condition is required for more depth usage. Up to now very few papers about pressure vessel subject to external pressure have been published, due to lack of usage in deep sea. Yet, recently necessity is arising for the development of domestic products for deep sea usage. Herein, a pressure cylinder is designed using ASME Division 1 (first level) rule and finite element analysis for several water pressures is performed. Strain and stress values at three locations on the cylinder surface are obtained. Maximum stress occurs at the internal surface of cylinder at middle point. Meanwhile an aluminium cylinder, which is made based on this design, is being tested in KRISO. The results of strain obtained by this finite element analysis and chamber test will be compared and analyzed for the future research of pressure vessels.pth usage. Up to now very few papers about pressure vessel subject to external pressure have been published, due to lack of usage in deep sea. Yet, recently necessity is arising for the development of domestic products for deep sea usage. Herein, a pressure cylinder is designed using ASME Division 1 (first level) rule and finite element analysis for several water pressures is performed. Strain and stress values at three locations on the cylinder surface are obtained. Maximum stress occurs at the internal surface of cylinder at middle point. Meanwhile an aluminium cylinder, which is made based on this design, is being tested in KRISO. The results of strain obtained by this finite element analysis and chamber test will be compared and analyzed for the future research of pressure vessels.