波浪及海洋水声环境中的船舶水弹性力学理论与应用  

Three-dimensional hydroelasticity theory of ships in waves and ocean-acoustic environment with applications

作　　者：吴有生[1,2] 邹明松 丁军[1] 倪歆韵 田超[1] 司马灿[1,2] 刘树晓[1,2] WU YouSneng;ZOU MingSong;DING Jun;NI XinYun;TIAN Chao;SIMA Can;LIU ShuXiao(China Ship Scientific Research Center,Wuxi 214082,China,＂ 2.State Key Laboratory of Deep-Sea Manned Vehicles,Wuxi 214082,China)

机构地区：[1]中国船舶科学研究中心,无锡214082 [2]深海载人装备国家重点实验室,无锡214082

出　　处：《中国科学：物理学、力学、天文学》2018年第9期I0002-I0002,1-13,共14页Scientia Sinica Physica,Mechanica & Astronomica

基　　金：国家重点基础研究发展计划(编号:2013CB036100);国家重点研发计划(编号:2017YFB0202703);国家自然科学基金(编号:11772304;51709241)资助项目

摘　　要：1984年诞生的浮体三维水弹性力学理论把海洋波浪环境中水面或水下航行器的耐波性分析、结构外载荷分析、结构强度与疲劳分析及结构振动分析融合在了一个统一的流固耦合理论基础上.经三十多年发展,该理论拓展成了两个主要的研究分支考察波浪激励下结构动响应的船舶三维水弹性理论,和考察水中声学效应的船舶三维水弹性理论,后者也称为船舶三维声弹性理论.中国船舶科学研究中心以工程需求为牵引,较为系统地创新建立了航行船舶三维线性与非线性水弹性理论、复杂海洋地理环境中的浮体水弹性理论、海洋水声波导环境中的船舶三维声弹性理论,开发了相应的数值分析方法和软件.有关理论方法和软件已广泛应用于解决船舶、海洋工程结构物以及水下航行器的性能预报、设计校核与优化等关键技术问题.本文并非综述世界上船舶三维水弹性和声弹性理论的发展情况,而是简述其基本概念及以中国船舶科学研究中心为主建立的理论的内涵,同时介绍了相关理论方法和软件在预报一艘55万吨矿砂船和一座8模块超大型海洋浮体在波浪中的水弹性响应,及一个简化潜艇结构模型在水中的声辐射的应用例子.最后,简要讨论了船舶三维水弹性和声弹性理论进一步发展与应用的某些重要方向.The three-dimensional （3D） hydroelasticity theory of floating structures established in 1984 embodies the predictions of seakeeping behaviors, structural loads, dynamic strength, fatigue, and vibration of a surface ship or an underwater vehicle travelling in the sea in a unified generalized fluid-structure interaction theory. After more than thirty years of development, this theory has been further extended to two main branches： the 3D hydroelasticity theories for examining the wave excited dynamic responses of ships, and the 3D hydroelasticity theories for investigating the machinery or propeller excited vibrations and underwater acoustic radiations of a ship. The latter is also called the 3D sono-elasticity theory of ships. Drawn by the momentum gained from the comprehensive demand of marine applications, China Ship Scientific Research Center （CSSRC） has been devoted to the systematic innovative research in creating the linear and non-linear 3D hydroelasticity theories of ships, the 3D hydroelasticity theory of floating structures deployed in complicated ocean geographical environment near islands and reefs, the 3D sono-elasticity theory of ships in ocean acoustic environment etc. together with developing the numerical methods and corresponding software. These have been extensively employed to solve the key technical problems, such as motion and structural response predictions, behavior and safety assessment, design check and optimization of surface ships, underwater vehicles and other marine structures, This paper is not to present the state of the art of the worldwide development of hydroelasticity theories, but to concisely described the concept and framework of the 3D hydroelasticity and sono-elasticity theories of ships which are mainly developed by the research group of CSSRC. Typical application examples of the hydroelastic analyses of a 500000 DWT ultra large ore carrier and an 8-module very large floating structure, as well as the sono-elastic analysis of a simplified submarine model are also

关 键 词：船舶 水弹性 声弹性 流固耦合 波浪载荷 振动 声辐射 

分 类 号：O343[理学—固体力学] U661[理学—力学]