华南理工大学学报（自然科学版）2025，Vol.53Issue(2)：92-106,15.DOI:10.12141/j.issn.1000-565X.240165
基于长、短期设计波的浮式风机平台结构强度研究
Research on the Structural Strength of Floating Offshore Wind Turbine Platform Based on Long and Short Term Design Waves
摘要
Abstract
Stability and safety of floating wind turbine platforms in deep and distant sea environments are the core issues of floating offshore wind turbine systems.This paper analyzed the effects of multiple load control parameters on the design wave parameters under extreme wave loads by numerical simulation based on two design wave methods of long and short-term,and evaluated the structural strength of the floating offshore wind turbine platform using different design wave methods.The results show that:the traditional load control parameters of mid-longitudinal profile,mid-transverse profile and waterline plane cannot accurately capture the most dangerous load-ing conditions suffered by the floating offshore wind turbine platform,and the structural strength analysis of the floating offshore wind turbine platform also needs to take into account the stress concentration phenomenon at differ-ent structural connection locations,and thus needs to consider the influence of more load control parameters on the structural strength;the long term statistical design wave method can reflect the complexity of the marine environ-ment more comprehensively,and can obtain the structural strength of the floating offshore wind turbine platform us-ing different design wave methods.The long-term statistical design wave method can more comprehensively reflect the complexity of the marine environment and obtain the design wave parameters of the floating offshore wind tur-bine platform in the most dangerous state,while the short-term design wave method has the advantage of quickly as-sessing the structural strength of extreme wave conditions.The two can be used in conjunction with each other in accordance with the different design stages of the floating offshore wind turbine platform.The search for the most dangerous working conditions through the design wave method can not be compared with only the height of the wave parameters in the design.Calculation results show that the maximum stress obtained from two different design wave methods does not necessarily correspond to the highest wave height.This indicates that the wave height alone can-not determine the most critical condition.A comprehensive analysis of factors such as wave height,wave period,wave direction,and phase is required to assess their impact on structural strength.These findings are of significant importance for the structural design and safety evaluation of floating wind turbine platforms.关键词
浮式风机/结构强度/长期设计波/短期设计波Key words
floating offshore wind turbine/structural strength/long-term design wave/short-term design wave分类
交通工程引用本文复制引用
李平,王红博,陈超核..基于长、短期设计波的浮式风机平台结构强度研究[J].华南理工大学学报（自然科学版）,2025,53(2):92-106,15.基金项目
国家自然科学基金项目(51979111) （51979111）
南方电网新能源联合实验室开放课题项目(GDXNY2022KF03) （GDXNY2022KF03）
广东省重点领域研发计划项目(2020B1111010001) Supported by the National Natural Science Foundation of China(51979111)and the Key-Area Research and De-velopment Program of Guangdong Province(2020B1111010001) （2020B1111010001）
