沉船打捞多体系统耦合动力响应特性计算研究  

Computational Research on the Coupling Dynamic Response of Multi-Body System for Wreck Salvage

作　　者：高定全 刘雨[1] 寇雨丰[2] GAO Dingquan;LIU Yu;KOU Yufeng(Shanghai Salvage Company,Shanghai 200090,China;State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200030,China)

机构地区：[1]交通运输部上海打捞局,上海200090 [2]上海交通大学海洋工程国家重点实验室,上海200030

出　　处：《船舶工程》2022年第5期59-64,117,共7页Ship Engineering

基　　金：科技部“大吨位沉船整体打捞关键技术研究与装备研制”(2018YFC0309700)。

摘　　要：为研究双船抬吊法在深水区域大吨位沉船整体起浮打捞作业中的应用,以采用双船抬吊法整体打捞300 m水深处的12000 t沉船这一案例中用到的多体打捞系统为研究对象,开展多体耦合水动力性能和提升吊缆动力载荷特性研究。采用三维频域格林函数法计算多浮体的耦合水动力特性,对提升吊锚链在不同沉船提升高度和不同环境载荷方向下的动载受力特性进行分析。计算结果与水池模型试验结果的对比显示二者吻合较好,表明该方法有效,可为实际工程中打捞方案的设计提供参考。In order to study the application of the double vessel lifting method in the overall lifting and fishing operation of large tonnage sunken ships in deep water,the multi-body fishing system used in the case of the overall fishing of 12000 t sunken ships in 300 m water depth by the double vessel lifting method is taken as the research object,and the multi-body coupling hydrodynamic performance and the dynamic load characteristics of lifting cables are studied.The coupled hydrodynamic characteristics of multi-body are calculated by using three-dimensional frequency domain Green’s function method.The dynamic load characteristics of the lifting cable are analysed and discussed under different lifting heights of the sunken ship and different environmental load directions.The comparison between the calculation results and the tank model test results shows that the two are in good agreement,which shows that the method is effective and can provide a reference for the design of fishing schemes in practical projects.

关 键 词：打捞 多浮体 耦合分析 时域 模型试验 液压缓冲 

分 类 号：U676.62[交通运输工程—船舶及航道工程] U661.1[交通运输工程—船舶与海洋工程]