슬로싱 충격 압력의 분포 형상에 따른 LNG CCS의 구조응답연구

초록

Generally, the sloshing pressure has complex shape and various patterns. Also, the structural response induced by the sloshing pressure is affected by the pattern of sloshing pressure. In order to understand the structural response by the perspective view of pressure shape, it is more efficient to make sloshing pressure pattern than to reflect the complex pressure history. In this study, the sloshing pressures obtained by the small scale model test are categorized to different spatial distributions such as Triangular pyramid, Rhombic shape and Gaussian distribution types. Dynamic analyses of Mark-III LNG CCS are then parametrically performed with the consideration of various types of sloshing impact. Thereafter, efficient method to prevent structural redundancy are investigated after dynamic finite element analyses and comparisons of the structural response.