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ISSN 0254-0096 CN 11-2082/K

太阳能学报 ›› 2022, Vol. 43 ›› Issue (8): 463-471.DOI: 10.19912/j.0254-0096.tynxb.2021-0786

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半潜式波浪能养殖平台与系泊系统的耦合动力分析

黄硕1,2, 梁诗琪1,2, 盛松伟3, 马山4, 陈纪康4, 李建东4   

  1. 1.中山大学海洋工程与技术学院,珠海 519000;
    2.南方海洋科学与工程广东省实验室(珠海),珠海 519000;
    3.中国科学院广州能源研究所,广州 510640;
    4.哈尔滨工程大学船舶工程学院,哈尔滨 150001
  • 收稿日期:2021-07-07 出版日期:2022-08-28 发布日期:2023-02-28
  • 通讯作者: 盛松伟(1972—),男,博士、研究员,主要从事海洋可再生能源利用方面的研究。shengsw@ms.giec.ac.cn
  • 基金资助:
    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(2022A1515011285); 广东省促进经济高质量发展专项(GDNRC[2020]015)

DYNAMIC ANALYSIS OF COUPLED SEMI-SUBMERSIBLE WAVE ENERGY AQUACULTURE PLATFORM AND MOORING SYSTEM

Huang Shuo1,2, Liang Shiqi1,2, Sheng Songwei3, Ma Shan4, Chen Jikang4, Li Jiandong4   

  1. 1. School of Marine Engineering and Technology, Sun Yat-Sen University, Zhuhai 519000, China;
    2. Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai), Zhuhai 519000, China;
    3. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;
    4. Harbin Engineering University, Harbin 150001, China
  • Received:2021-07-07 Online:2022-08-28 Published:2023-02-28

摘要: 以“澎湖号”半潜式波浪能养殖平台为研究对象,开展养殖平台及其系泊系统在浪、流联合作用下水动力性能的研究。基于三维势流理论,应用一阶泰勒展开边界元方法对其频域水动力进行计算,研究不同浪向下平台的运动响应和二阶波浪漂移力。采用间接时域分析方法和异步耦合方法实现平台和系泊系统的时域耦合动力求解,对不同浪流组合工况下平台的时域运动与锚链张力进行分析。研究表明,在南海常规海况中平台稳定性较好,立柱间水动力干扰尤为明显,顺浪时平台所受的二阶波浪漂移力最小。在与系泊系统的耦合作用下,平台的横摇与纵摇运动受入射波浪向的影响较大,入射波波高对顺浪下的平台横摇运动和横浪与斜浪下平台纵摇运动影响明显。

关键词: 波浪能, 频域分析, 时域分析, 养殖平台, 系泊系统

Abstract: The semi-submersible wave energy aquaculture platform "Penghu" is located in the open sea area, with large waves and rapid currents. Therefore, it is required that the platform not only meets the needs of aquaculture, but also has the ability of efficient power generation as well as wind and wave resistance. It is of great significance for the engineering safety and design to study the hydrodynamics characteristics of the aquaculture platform and its mooring system under the combined action of waves and currents. Based on the three-dimensional potential flow theory, the first-order Taylor expansion boundary element method is used to calculate the hydrodynamics characteristics in the frequency domain, and the first-order wave force and second-order wave drift force of the platform under waves from different directions are studied. Indirect time-domain analysis method and asynchronous coupling method are used to solve the time-domain coupling dynamic solution of the platform and its mooring system. The time-domain motion of the platform and the tension of mooring lines under different wave-current conditions are analyzed. The results show that under conventional sea conditions in the South China Sea the platform has great hydrodynamic performance with obvious hydrodynamic interference between columns, and the second-order wave drift force are the least when the platform stays in following seas. Under the coupling action with the mooring system, the pitch and roll motion responses of the platform are most affected by the incident wave angle, the roll motion response of the platform is most affected by the significant wave height when it performs in following sea, while the pitch motion response is most affected by significant wave height when it performs in beam sea or under oblique waves.

Key words: wave energy, frequency domain analysis, time domain analysis, aquaculture platform, mooring system

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