摘要
Abstract
Based on research of existing methods for calculating mooring line damping, in this paper, we introduce an improved quasi⁃static method. First, we calculate the mooring line damping for several series of load cases using the Huse quasi⁃static method, Liu quasi⁃static method, and the fully dynamic finite element method. Then, in the calculation of the two quasi⁃static methods, we take into account the horizontal displacement of the mooring line ele⁃ment, and again calculate the mooring line damping, since it is significant in the fairlead position. Finally, we ana⁃lyze the results and compare them to better understand the features and disadvantages of the various methods. After verification, we introduce a improved quasi⁃static method. This new method demonstrates acceptable accuracy and reliability. The results obtained are similar to those generated by the finite element method. This method can be re⁃garded as an effective auxiliary means for calculating mooring line damping.关键词
海洋浮动式平台/锚泊阻尼/慢漂运动/准静态法/全动态有限元法Key words
offshore floating platforms/mooring line damping/slow drift motion/quasi-static method/fully dynamic finite element method分类
能源科技
