大型浮体浮筒纵横置方案的载荷和结构响应研究

Load and Structure Response Study on Single Module Structure of VLFS with Transverse and Longitudinal Pontoon

文中基于三维势流理论的边界元法和线性有限元的数值仿真方法进行浮筒横置与纵置的VLFS的载荷和结构响应研究.采用Hydrostar软件对两型平台进行波浪载荷计算,得到两型平台结构的波浪弯矩RAO.根据确定性设计波法确定设计波的波浪参数,使用Homer软件联合调用水动力计算模块和结构计算模块,对浮筒横置式和纵置式的VLFS的结构响应进行比较.结果表明:浮筒纵置平台的纵向波浪弯矩和结构响应水平均小于横置平台.

In this paper,based on the boundary element method of three-dimensional potential flow theory and the numerical simulation method of linear finite element,the load and structural response of VLFS with horizontal and vertical pontoons were studied.The wave loads of the two platforms were calculated by Hydrostar software,and the wave bending moments RAO of the two platforms were obtained.According to the deterministic design wave method,the wave parameters of the design wave were determined,and the hydrodynamic calculation module and the structural calculation module were jointly called by Homer software to compare the structural responses of VLFS with horizontal and vertical pontoons.The results show that the longitudinal wave bending moment and structural response level of the longitudinal pontoon platform are smaller than those of the transverse platform.