模块尺度效应对多浮体结构连接器载荷的影响特征分析  

Analysis of module scale effect on connectors loads characteristics of multi-floating structure

作　　者：王朝阳 李延巍 任年鑫 WANG Zhaoyang;LI Yanwei;REN Nianxin(School of Marine Science and Engineering,Hainan University,Haikou 570228,China;State Key Laboratory of Coast and Offshore Engineering,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]海南大学海洋科学与工程学院,海南海口570228 [2]大连理工大学海岸及近海工程国家重点实验室,辽宁大连116024

出　　处：《舰船科学技术》2024年第13期71-76,共6页Ship Science and Technology

基　　金：国家自然科学基金资助项目(52161041);海南省自然科学基金资助项目(520RC552)。

摘　　要：连接器是模块化多浮体结构至关重要且最易受损的关键构件。结合模块化多浮体结构的尺度选择和连接器安全稳定的需求,基于三维非线性势流理论,考虑多体水动力耦合效应及连接器机械耦合效应,构建代表性三模块浮体结构耦合时域分析模型,重点研究典型海况下模块化多浮体结构尺度效应对连接器载荷的影响特征,揭示模块尺度效应对连接器载荷及各模块动力响应的影响机理。结果表明,大波浪周期的海况下,相同吃水下,模块连接器荷载的增大比例与模块尺度改变近似线性关系,为对应尺度模块的排水量之比;小波浪周期的海况下,相同排水下,大尺度小吃水模块的纵荡运动和连接器纵向受力更优。考虑目前船坞建造能力和各尺度模块水动力响应特征,建议尽量选用尺度较大的模块(如40 m×40 m),为模块化多浮体结构的优化设计提供借鉴。Connectors are crucial and the most vulnerable component of modular multi-floating structure.,Based on the requirements of scale selection and connector safety and stability of modular multi-floating structure,considering both multi-body hydrodynamic coupling effect and mechanical coupling effect of connectors,a coupled time-domain analysis model of a representative three-module floating structure system is constructed based on the three-dimensional nonlinear potential flow theory.The module scale effect on the dynamic characteristic of connectors has been focused and investigated under typical sea conditions.The results show that there is an approximate linear relationship between the increase of module connector load and the change of module scale under the same draft,which is the ratio of the displacement of the corresponding scale module.the surge of the large-scale and small-draft module and the longitudinal force on the connector are better.Considering the current construction capacity of the dock and the actual hydrodynamic response characteristics of various scale modules,it is suggested to choose a large-scale module(such as 40 m×40 m)as much as possible,which can provide reference for the structural optimization design of the modular multi-floating structure.

关 键 词：模块化多浮体 模块尺度效应 水动力耦合 连接器机械耦合 连接器载荷 

分 类 号：U661.3[交通运输工程—船舶及航道工程]