摘要
连接器是超大型多模块浮动平台的关键部件,其刚度特性对多模块浮动平台的动力学响应影响很大,如何合理地安排连接器的各向刚度对连接器的设计至关重要。本文提出了一种通用的优化流程以寻求连接器的最优刚度配比。考虑实际工程需求,基于线性加权和法构建了优化问题的目标函数,并采用遗传算法寻求目标函数的全局最优解。针对不同模块数量的链式浮动机场,开展了不同海况下连接器最优刚度配比研究。结果表明,连接器采用纵向小刚度、横向和垂向大刚度对链式浮动机场的动力学性能最为有利。本文提出的连接器刚度配比优化算法可为不同类型超大型多模块浮体系统的连接器结构设计提供理论指导。
Connectors are the key equipment for very large multi-modular floating structures,the stiffness of which greatly affects the dynamic responses of multi-modular floating structures.It is significant to make a proper layout of the anisotropic stiffness for the design of connectors.A general optimization process is proposed in this paper to determine the optimal stiffness configuration of flexible connectors and an overall objective function is established through weights based on specific engineering requirements while the genetic algorithm(GA)is employed for solving the optimization problem.With consideration of the chain-type floating airport consisting of different number of modules,the optimum stiffness configurations in different sea conditions are investigated by numerical experiments.The results indicate that the combination of small longitudinal stiffness,large transversal and large vertical stiffness is most favorable for the floating systems.The optimization method of stiffness configuration can serve as a theoretical guideline for flexible connector design of various VLFSs.
作者
赵淮
张海成
徐道临
施奇佳
陆晔
ZHAO Huai;ZHANG Hai-cheng;XU Dao-lin;SHI Qi-jia;LU Ye(State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body,Hunan University,Changsha 410082,China;China Ship Scientific Research Center,Wuxi 214082,China)
出处
《船舶力学》
EI
CSCD
北大核心
2021年第4期489-501,共13页
Journal of Ship Mechanics
基金
国家自然科学基金资助项目(11702088)
工信部高技术船舶项目([2016]22)。
关键词
超大型浮动平台
柔性连接器
刚度配比
优化
very large floating structure
flexible connector
stiffness configuration
optimization
