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ISSN 0254-0096 CN 11-2082/K

太阳能学报 ›› 2022, Vol. 43 ›› Issue (10): 281-288.DOI: 10.19912/j.0254-0096.tynxb.2021-0289

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海上风电筒型基础整机运输过程荷载识别研究

江琦1,2, 董霄峰1,2, 翁珮瑶1,2, 周欢1,2, 练继建   

  1. 1. 天津大学水利工程仿真与安全国家重点实验室,天津 300072;
    2. 天津大学建筑工程学院,天津 300072;
    3. 河北工程大学水利水电学院,邯郸 056038
  • 收稿日期:2021-03-17 出版日期:2022-10-28 发布日期:2023-04-28
  • 通讯作者: 练继建(1965——),男,博士、教授,主要从事水利工程及海上风电结构设计与安装方面的研究。jjlian@tju.edu.cn
  • 基金资助:
    国家自然科学基金青年基金(51709202); 科技部创新方法工作专项(2016IM030100); 三峡新能源江苏响水近海风电场复合筒型基础结构设计、监测、数据分析及健康诊断系统研究资助

RESEARCH ON LOAD IDENTIFICATION IN TRANSPORTATION PROCESS OF OVERALL BUCKET FOUND OF OFFSHORE WIND TURBINE

Jiang Qi1,2, Dong Xiaofeng1,2, Weng Peiyao1,2, Zhou Huan1,2, Lian Jijian   

  1. 1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China;
    2. School of Civil Engineering, Tianjin University, Tianjin 300072, China;
    3. School of Water Conservancy and Hydropower, Hebei University of Engineering, Handan 056038, China
  • Received:2021-03-17 Online:2022-10-28 Published:2023-04-28

摘要: 根据某3.3 MW海上风电筒型基础整机运输期原型观测数据,首先采用加速度响应探究环境要素对整机振动影响。其次依据应变-荷载原理计算塔筒底部截面弯矩,并统计全程计算弯矩幅值,分析塔筒承受荷载随环境要素变化规律。结果表明:1)波高从0.2 m增加到2.0 m时,加速度均方根增加98%,波高是引起整机耦联振动的主要因素;2)波高小于1.0 m时,塔筒底部识别弯矩在0~10 MN∙m范围内波动,占设计弯矩的21.5%,波高增加到1.5 m时,识别弯矩幅值基本在10~25 MN∙m范围内波动;3)波高达到2.0 m时,塔筒底部弯矩幅值达32 MN∙m,占设计弯矩的68.9%,整机结构仍在安全范围内;4)运输期根据波浪条件预测制定运输方案,整机应在不超过2.0 m波高条件下运输,保证整机结构有富裕的安全空间。

关键词: 海上风电, 筒型基础, 荷载识别, 运输期, 波高

Abstract: Based on the measurement data of a 3.3 MW offshore wind turbine supported by the wide-shallow bucket foundation, the influence of environmental factors on the structure vibration is firstly explored with acceleration response. Then the bending moment of the bottom section of the tower under different working conditions is calculated using the strain-load relationship. The amplitude of the bending moment in the whole transportation process is investigated and the change rule of the load with environmental factors is analyzed. The results show that, 1) When the wave height increases from 0.2 m to 2 m, the root-mean-square values of acceleration increase by 98%. This means that the wave height is the major cause of the coupled vibration for the integral structure during the transportation; 2) When the wave height is less than 1.0 m, the identified moment at the tower bottom fluctuates between 0 and 10 MN∙m, which is 21.5% of the design moment. When the wave height reaches 1.5 m, the identified moment fluctuates between 10 and 25 MN∙m; 3) When the wave height reaches 2 m, the moment is still within the safe range, arriving at 32 MN∙m, which is 68.9% of the design moment. 4) During the transportation, the transportation strategy should be made according to wave prediction. The overall bucket foundation transportation should be carried out under the wave height less than 2 m to ensure the safety and stability of the integrated structure.

Key words: offshore wind power, bucket foundation, load identification, transportation, wave height

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