半潜式平台完全时域耦合运动分析  

Full Time Domain Coupled Analysis of Semi-submersible Platform

作　　者：元志明[1] 嵇春艳[1] 陈明璐[1] 

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212003

出　　处：《海洋技术》2010年第4期81-87,共7页Ocean Technology

基　　金：国家自然科学基金资助项目(51079065)

摘　　要：采用三维频域GREEN函数法计算浮体的水动力特性,并运用非线性有限元法对系泊缆索进行模拟,通过完全时域耦合方法求解整个系泊系统的时域控制方程,得到半潜式平台系统的运动响应和系泊缆索的张力变化情况,并对这些响应结果的波频和低频成分进行了分离,讨论了各频率响应成分对平台系统运动的贡献。3D Green＇s function in frequency domain is adopted to calculate the hydrodynamic characteristics of the platform.The mooring lines are simulated using non-linear finite element method.After solving the equations of motion of the entire floating system by employing full time domain coupled analysis method,the platform＇s motion response and lines＇ tension are obtained.Furthermore,wave frequency response and the low frequency response are separated before a further discussion of the effect of these compositions to the platform system.

关 键 词：半潜式平台 系泊缆索 非线性有限元 时域方法 耦合分析 

分 类 号：P75[天文地球—海洋科学]