一种考虑海上风电支撑结构非零初始条件的动力响应计算方法  

A RESPONSE ESTIMATION METHOD OF OFFSHORE WIND TURBINE SUPPORT STRUCTURES WITH NON-ZERO INITIAL CONDITIONS

作　　者：李颖 卢洪超[3] 王滨[4] 秦俊飞 Li Ying;Lu Hongchao;Wang Bin;Qin Junfei(Chinese-German Institute of Engineering,Zhejiang University of Science and Technology,Hangzhou 310023,China;State Key Lab of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China;College of Engineering,Ocean University of China,Qingdao 266100,China;Power China Huadong Engineering Corporation Limited,Hangzhou 311122,China;Luoyang Ship Material Research Institute,Luoyang Sunrui Rubber&Plastic Science Technology Corporation Limited,Luoyang 471003,China)

机构地区：[1]浙江科技学院中德工程师学院,杭州310023 [2]大连理工大学海岸和近海工程国家重点实验室,大连116024 [3]中国海洋大学工程学院,青岛266100 [4]中国电建集团华东勘测设计研究院有限公司,杭州311122 [5]中国船舶重工集团公司第七二五所洛阳双瑞科技有限公司,洛阳471003

出　　处：《太阳能学报》2020年第3期59-64,共6页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51909238,51609219,51739001);国家自然科学基金重点项目(51939002)。

摘　　要：提出一种能够考虑海上风电支撑结构非零初始条件的动力响应计算方法。该方法创新之处在于将波浪等环境荷载用一系列极值及留数替代,从而可在Laplace域与非零初始条件影响项进行合并。分别采用海上风电单桩式和导管架式支撑结构进行验证。结果表明:除起始短暂时刻外,所提出新方法与传统时域方法计算结果基本一致。The dynamic response analysis is an important part of structure design and security evaluation in the running process of offshore wind turbines. This paper proposes a dynamic response estimation method of offshore wind turbine support structure,which can take non-zero initial condition into the consideration. The innovation of this method is that the wave load of environment is replaced by a series of poles and residue,so that is can be combined with non-zero initial condition in Laplace domain. Taking monopole and jacket support structure of offshore wind turbines to verify proposed method,the results indicate that the dynamic response calculated by proposed method and traditional time domain method match well except for the initial short time.

关 键 词：海上风电 支撑结构 动力响应 频域分析 LAPLACE变换 非零初始条件 

分 类 号：O327[理学—一般力学与力学基础] TK83[理学—力学]