超大型风力机叶片弯扭耦合颤振研究

杨定华; 王速; 张险峰; 马璐; 沈昕; 杜朝辉

doi:10.19912/j.0254-0096.tynxb.2024-2254

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超大型风力机叶片弯扭耦合颤振研究

更新时间：2026-07-22

- 超大型风力机叶片弯扭耦合颤振研究
- Vol. 47, Issue 6, Pages: 214-220(2026)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.19912/j.0254-0096.tynxb.2024-2254
  CLC： TK89
- Online First：08 July 2026，
  
  Published：2026
- 稿件说明：
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杨定华, 王速, 张险峰, et al. 超大型风力机叶片弯扭耦合颤振研究[J]. 2026, 47(6): 214-220.
DOI：

杨定华, 王速, 张险峰, et al. 超大型风力机叶片弯扭耦合颤振研究[J]. 2026, 47(6): 214-220. DOI： 10.19912/j.0254-0096.tynxb.2024-2254.

摘要

以IEA 15 MW风力机叶片为研究对象

建立叶片气弹系统动力学模型

对高尖速比下发生颤振时的气弹响应进行分析

并对其中的多自由度耦合特性开展深入研究。结果显示

在高尖速比下

该风力机长柔叶片发生挥舞-扭转耦合的弯扭耦合颤振

在三自由度上的振动均包含挥舞和扭转固有频率

但颤振的维持由挥舞和扭转自由度上气动力做功维持

挥舞、扭转的瞬时气动功率发展存在明显的耦合现象。摆振方向则基本无能量贡献

在全过程中仅有微弱气动功率

仅由于叶片结构耦合特性

受挥舞和扭转激励发生受迫振动。

Abstract

This paper takes the IEA 15 MW wind turbine blade as the research object

establishes the dynamic model of the aeroelastic system for the blades

analyzes the aeroelastic response during flutter at high tip speed ratio

and conducts in-depth research on the multi-degree-of-freedom coupling characteristics therein. The results show that at high tip speed ratio

the long and flexible blade of this wind turbine undergoes a coupled bending-torsion flutter of pitch-torsion. The vibrations in the three degrees of freedom all contain the natural frequencies of pitch and torsion. However

the maintenance of flutter is sustained by the aerodynamic power work in the pitch and torsion degrees of freedom. There is an obvious coupling phenomenon in the development of the instantaneous aerodynamic power of pitch and torsion. In the direction of yaw

there is basically no energy contribution. There is only weak aerodynamic power throughout the process

and it only undergoes forced vibrations due to the excitation of pitch and torsion because of the coupling characteristics of the blade structure.

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Keywords

references

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