关键词: 阻尼板结构, 目标设计载荷, Morison法

Abstract: The damping box is the key device to improve the added water mass and the viscous damping effect for the cylindrical Floating Production Storage and Offloading (FPSO), which can effectively reduce heave and roll motion. The damping box is usually the cantilever box-like structure connected with the cylinder. The structural design and strength check of the damping box and its connection with the cylinder are critical to the structural design of the cylindrical FPSO. The maximum pressure and maximum damping force of the damping box are taken as the objective design load. It carries out the check and analysis of the structural strength of the damping box by using the sub-model method to check the structural strength of the damping box, taking the deformation obtained from the total strength analysis as the boundary condition, and the Morison method to simulate the viscous damping effect. It can provide reference for the structural design of the damping box.

Key words: damping box structure, objective design load, Morison method