哈尔滨工程大学学报2024，Vol.45Issue(6)：1041-1049,9.DOI:10.11990/jheu.202203033
浅水浮式风电结构非线性波浪荷载及动力响应特性研究
Study on the nonlinear wave load effect and dynamic response characteristics of floating wind turbine structures in shallow water
摘要
Abstract
The wave load and motion response of floating wind turbine structures in shallow water exhibit nonlinear characteristics,which highly demand the safety of floating wind turbines.Herein,the coupling analysis model of the wind turbine-floating foundation-mooring system is established,the hydrodynamic coefficient of the frequency domain and calculation results of the time domain under different water depths and wave load calculation methods are compared,and the influence of water depth and wave load calculation methods on the structural response and mooring tension of floating wind turbine structures are discussed.The results showed that the hydrodynamic per-formance and dynamic response of floating wind turbine structures change with variations in water depth.The low-frequency component of floating platform response and mooring line tension increases with decreasing water depth,and the second-order wave load effect becomes more significant in shallow water.Meanwhile,Newman's approxi-mation underestimates the second-order wave loads compared with the full quadratic transfer function method,which affects the analysis of platform response and mooring tension.关键词
海上风电场/浮式风机/水动力/非线性分析/动力响应/系泊缆/时域分析/频域分析Key words
offshore wind farm/floating wind turbine/hydrodynamics/nonlinear analysis/dynamic response/mooring line/time domain analysis/frequency domain analysis分类
信息技术与安全科学引用本文复制引用
张敏,杨天恩,杨风艳,徐琨..浅水浮式风电结构非线性波浪荷载及动力响应特性研究[J].哈尔滨工程大学学报,2024,45(6):1041-1049,9.基金项目
国家自然科学基金项目(51879247,52171281). （51879247,52171281）
