二阶波浪力对半潜浮式风力机动力响应的影响研究

曹淑刚; 李红有; 王雨; 祝亮; 卢洪超

doi:10.19912/j.0254-0096.tynxb.2025-0117

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二阶波浪力对半潜浮式风力机动力响应的影响研究

更新时间：2026-07-22

- 二阶波浪力对半潜浮式风力机动力响应的影响研究
- Vol. 47, Issue 6, Pages: 344-353(2026)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.19912/j.0254-0096.tynxb.2025-0117
  CLC： TK83
- Online First：08 July 2026，
  
  Published：2026
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曹淑刚, 李红有, 王雨, et al. 二阶波浪力对半潜浮式风力机动力响应的影响研究[J]. 2026, 47(6): 344-353.
DOI：

曹淑刚, 李红有, 王雨, et al. 二阶波浪力对半潜浮式风力机动力响应的影响研究[J]. 2026, 47(6): 344-353. DOI： 10.19912/j.0254-0096.tynxb.2025-0117.

摘要

以“国能共享号”为例

研究二阶波浪力对半潜浮式风力机动力响应的影响

对比远场法和近场法计算二阶平均波浪力传递函数（QTFs）的差异

建立气动-水动-结构-伺服耦合时域模型

分析不考虑二阶波浪力、考虑二阶平均波浪力、考虑二阶差频波浪力、考虑二阶差频+和频波浪力4种情况下浮式风力机动力响应的结果。研究表明：当圆频率小于1.1 rad/s时远场法和近场法计算的QTFs曲线几乎一致

而随着圆频率的增大

远场法的计算结果在大部分频率下将大于近场法。二阶波浪力对半潜平台运动响应有重要影响

其中影响成分主要为二阶平均波浪力或二阶差频波浪力

而二阶和频波浪力几乎无影响。二阶差频波浪力和二阶和频波浪力对半潜平台加速度和塔筒顶部荷载影响显著

而二阶平均波浪力对两者无影响。二阶差频、二阶和频波浪力作用下塔筒顶部荷载的高频响应被激发

在计算时应予以考虑。二阶波浪力对锚链系泊张力和疲劳寿命影响显著

不仅会增大锚链的疲劳损伤

还会对最大疲劳损伤的发生位置产生影响。

Abstract

This study investigates the influence of second-order wave forces on the dynamic response of a semi-submersible floating wind turbines

using the "Guoneng Sharing" as a case study. A comparative analysis of the differences between far-field and near-field methods for calculating the second-order mean wave force transfer functions （QTFs） is presented. A coupled time-domain model of aerodynamic

hydrodynamic

structural

and servo dynamics was established to analyze the dynamic responses of the floating wind turbine under four scenarios： neglecting second-order wave forces

considering second-order mean wave forces

considering second-order difference wave forces

and considering both second-order difference and sum wave forces. The results indicate that the QTFs calculated by the far-field and near-field methods are nearly identical when the angular frequency is less than 1.1 rad/s. However

as the angular frequency increases

the far-field method generally yields larger values than that of the near-field method. The second-order wave forces significantly impact the motion response of the semi-submersible platform

with the primary contributing components being the second-order mean wave forces or second-order difference wave forces

while the second-order sum wave forces exhibit negligible influence. Notably

the second-order difference frequency and sum frequency wave forces significantly affect the acceleration of the semi-submersible platform and the load at the top of the tower

whereas the second-order mean wave forces have no discernible effect on either. The high-frequency response of the tower top load is excited under the influence of second-order difference and sum frequency wave forces and must be taken into account in calculations. Furthermore

second-order wave forces markedly affect the tension and fatigue life of the mooring anchor chains

not only increasing the fatigue damage but also influencing the location of maximum fatigue damage occurrence.

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