波浪能装置抗台风恒张力系泊系统的数值模拟  

Numerical simulation on an anti-typhoon constant tension mooring system of wave energy devices

作　　者：黄硕 盛松伟[3] 王凯 张天宇 初岳峰 刘伟琪 HUANG Shuo;SHENG Songwei;WANG Kai;ZHANG Tianyu;CHU Yuefeng;LIU Weiqi(Ocean engineering and technology college,Sun Yat-sen University,Zhuhai 519000,China;Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai 519000,China;Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,China;Xinjiang Goldwind Sci&Tech Co.,Ltd,Beijing 100176,China)

机构地区：[1]中山大学海洋工程与技术学院,广东珠海519000 [2]南方海洋科学与工程广东省实验室(珠海),广东珠海519000 [3]中国科学院广州能源研究所,广东广州510640 [4]新疆金风科技股份有限公司,北京100176

出　　处：《哈尔滨工程大学学报》2022年第8期1096-1101,共6页Journal of Harbin Engineering University

基　　金：广东省重点领域研发计划(2021B0202070002);广东省基础与应用基础研究基金项目(2022A1515011285);国家重点研发计划(2019YFB1504403).

摘　　要：为了在恶劣海况下保持系泊系统的恒定张力,本文提出一种适用浮式波浪能装置的恒张力系泊系统。通过浮体运动距离释放动能,建立有效的系泊收放方案,保证瞬时最大系泊力永不超过系泊线破断力。采用中国南海风浪流环境条件,部署水深28 m,基于时域势流理论研究了260 kW鹰式波浪能装置与恒张力系泊系统的耦合动力响应,分析了锚链尺寸、布局以及安装成本的影响。通过与传统的悬链线系泊系统的比较,发现恒张力系泊系统可有效地减小锚链长度、材料用量和系泊线最大张力。恒张力系泊系统由于保持基本恒定的张力,避免系泊线拉直和结构受力过大而被破坏的可能,因此可有效提高装置在台风中的生存能力。In order to maintain constant tension under bad sea conditions,this paper proposes a constant tension mooring system that releases kinetic energy through the moving distance of the floating body applicable to floating wave energy devices.An effective mooring retraction scheme is created to ensure that the maximum instantaneous mooring force will never exceed the breaking force of the mooring line.On the basis of the time-domain potential flow theory,the coupled dynamic response of a 260 kW eagle wave energy device and a constant tension mooring system deployed at 28 m depth is studied under the condition wind and wave current in the South China Sea.The influences of anchor chain size,layout,and installation cost are analyzed.Compared with the traditional catenary mooring system,the proposed constant tension mooring system can effectively reduce the length of the anchor chain,material consumption,and maximum tension of the mooring line.It also avoids damaging the mooring line and its structure due to excessive forces because it maintains a basically constant tension and can,therefore,effectively improve the survivability of wave energy devices during typhoons.

关 键 词：波浪能 恒张力 系泊系统 抗台风 数值模拟 时域 势流理论 耦合动力响应 

分 类 号：O325[理学—一般力学与力学基础]