漂浮式风电基础疲劳计算方法比较研究

李强; 安帅; 刘兆; 杨朋磊

doi:doi:10.19912/j.0254-0096.tynxb.2024-2050

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漂浮式风电基础疲劳计算方法比较研究

更新时间：2026-04-08

- 漂浮式风电基础疲劳计算方法比较研究
- Vol. 47, Issue 3, Pages: 412-419(2026)
- 作者机构：
- 作者简介：
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- DOI：doi:10.19912/j.0254-0096.tynxb.2024-2050
  CLC： P751
- Online First：07 April 2026，
  
  Published：2026
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李强, 安帅, 刘兆, et al. 漂浮式风电基础疲劳计算方法比较研究[J]. 2026, 47(3): 412-419.
DOI：

李强, 安帅, 刘兆, et al. 漂浮式风电基础疲劳计算方法比较研究[J]. 2026, 47(3): 412-419. DOI： doi:10.19912/j.0254-0096.tynxb.2024-2050.

摘要

以美国可再生能源实验室的OC5半潜式海上漂浮式风电机组为研究对象

对漂浮式基础和风电机组进行一体化仿真建模

分别运用时域和频域谱分析方法

对该漂浮式基础进行结构疲劳计算。对风电机组载荷产生的疲劳损伤和波浪载荷产生的疲劳损伤用多种方法进行组合

并和时域方法得到的风浪联合作用下结构的疲劳损伤进行比较研究。结果表明：损伤组合法、等效应力90 °异向叠加法和挪威船级社（DNV）规范法得出的疲劳损伤与时域计算的结果最为相近

可用于漂浮式风电机组的初步设计。

Abstract

Taking the OC5 semi-submersible offshore floating wind turbine developed by NREL as the research object

an integrated simulation model was established for both the floating foundation and the wind turbine. Time domain and frequency domain spectral analysis methods were used to perform structural fatigue calculations on the floating foundation. Various approaches were employed to combine the fatigue damage induced by wind turbine loads and wave loads

and the results were compared with the fatigue damage of the structure under combined wind-waves loading conditions obtained through time-domain method. The research results indicate that the fatigue damage estimates derived from the damage combination method

equivalent stress 90° out-of-phase superposition method

and DNV specification method show the closest agreement with the time domain calculation results

making them suitable for the preliminary design of floating wind turbines.

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references

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