DYNAMIC RESPONSE ANALYSIS OF DDMS PLATFORM SUBJECTED TO ACTIONS OF WAVE GROUPS AND CURRENT FOURCES  

作　　者：SUN Zhao-chen WANG Xing-gang LIANG Shu-xiu LIU Shu-Xue LIU Si 

机构地区：[1]State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024,China

出　　处：《Journal of Hydrodynamics》2011年第6期697-708,共12页水动力学研究与进展B辑（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 50921001);the National High Technology Research and Development Program of China (863 Program, Grant No. 2007AA11Z130)

摘　　要：Coupled dynamic analysis of the Deep Draft Multi-Spar （DDMS） platform and the mooring system under the action of waves and current is carried out in the time domain. Using a geometrically nonlinear finite element method, the mooring-line dynamics is simulated based on the total Lagrangian formulation. Wave groups are obtained by the JONSWAP spectrum and an empirical wave envelope spectrum involving two envelope-based factors Group Height Factor （GFH） and Group Length Factor （GLF）. The results show that the wave groups have a significant effect on the motion responses of the platform and the mooring line tensions.Coupled dynamic analysis of the Deep Draft Multi-Spar （DDMS） platform and the mooring system under the action of waves and current is carried out in the time domain. Using a geometrically nonlinear finite element method, the mooring-line dynamics is simulated based on the total Lagrangian formulation. Wave groups are obtained by the JONSWAP spectrum and an empirical wave envelope spectrum involving two envelope-based factors Group Height Factor （GFH） and Group Length Factor （GLF）. The results show that the wave groups have a significant effect on the motion responses of the platform and the mooring line tensions.

关 键 词：Deep Draft Multi Spar （DDMS） platform dynamic response wave groups current fources 

分 类 号：U238[交通运输工程—道路与铁道工程] TU311.3[建筑科学—结构工程]