摘要
双船浮托安装海洋平台时,驳船与平台上部组块、下部结构的连接形式复杂,存在多浮体相互干扰、多体耦合运动和载荷转移。考虑多浮体相互干扰以及甲板支撑单元(DSU)、桩腿对接单元(LMU)、系泊、护舷等影响,提出双驳船与上部组块多体耦合运动算法,推导双驳船与上部组件的耦合刚度矩阵,对载荷转移过程中多体耦合运动及载荷响应进行数值模拟。典型横浪工况下数值模拟结果与水池模型试验吻合较好。
Twin-barge floatover installation of the mega offshore platform is the process of load transfer among the barges.Deck support unit(DSU)and leg mating unit(LMU)will cause hydrodynamic iteration,load transfer and coupling motions due to the complex connections between two barges,substructures and the topsides.Based on derivation of the coupling stiffness matrix,numerical algorithm for simulating load transfer process of twin-barge floatover installation is developed.Multi-body coupling motions and load response during twin-barge floatover installation are simulated.The numerical results of motions and loads during the twin-barge floatover installation in beam waves agree well with the experimental data.The proposed numerical algorithm can be used to the simulation of the twin-barge floatover installation.
作者
骆寒冰
黄俊辉
白晓东
谢芃
LUO Hanbing;HUANG Junhui;BAI Xiaodong;XIE Peng(Department of Naval Architecture and Ocean Engineering,Tianjin University,Tianjin 300350,China)
出处
《中国造船》
EI
CSCD
北大核心
2023年第4期140-152,共13页
Shipbuilding of China
关键词
双船浮托
多浮体
耦合运动
载荷转移
数值模拟
twin-barge floatover
multi floating bodies
coupled motion model
load transfer
numerical simulation
