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考虑几何非线性的风力机叶片气弹模型

吕品 廖明夫 尹尧杰

吕品, 廖明夫, 尹尧杰. 考虑几何非线性的风力机叶片气弹模型[J]. 机械科学与技术, 2015, 34(12): 1805-1812. doi: 10.13433/j.cnki.1003-8728.2015.1201
引用本文: 吕品, 廖明夫, 尹尧杰. 考虑几何非线性的风力机叶片气弹模型[J]. 机械科学与技术, 2015, 34(12): 1805-1812. doi: 10.13433/j.cnki.1003-8728.2015.1201
Liao Mingfu, Yin Yaojie, . An Aero-elastic Analysis Method for Wind Turbine Blades with Geometrically Nonlinear Effect[J]. Mechanical Science and Technology for Aerospace Engineering, 2015, 34(12): 1805-1812. doi: 10.13433/j.cnki.1003-8728.2015.1201
Citation: Liao Mingfu, Yin Yaojie, . An Aero-elastic Analysis Method for Wind Turbine Blades with Geometrically Nonlinear Effect[J]. Mechanical Science and Technology for Aerospace Engineering, 2015, 34(12): 1805-1812. doi: 10.13433/j.cnki.1003-8728.2015.1201

考虑几何非线性的风力机叶片气弹模型

doi: 10.13433/j.cnki.1003-8728.2015.1201
基金项目: 

中央高校基本科研业务费专项基金项目(3102015BJ(Ⅱ)CG015)资助

详细信息
    作者简介:

    吕品(1987-),博士研究生,研究方向为航空发动机结构动力学和风力发电技术,lyu.pin@outlook.com

    通讯作者:

    廖明夫(联系人),教授,博士,博士生导师,mfliao@nwpu.edu.cn

An Aero-elastic Analysis Method for Wind Turbine Blades with Geometrically Nonlinear Effect

  • 摘要: 针对大型轻型柔性叶片存在的几何非线性变形情况,基于几何精确梁理论建立了非线性叶片梁单元,考虑了叶片预弯预扭、各向异性、变形耦合以及截面偏心的特点。对非线性结构方程的数值求解方法进行了探讨。结合动量叶素理论建立了可用于分析叶片大变形动态响应问题的几何非线性气弹模型。通过两个算例验证了结构模型的正确性。以NREL 5MW风力机叶片为研究对象,分析了叶片静态变形、固有频率、以及在阵风、偏航错误条件下的动态响应,并与FAST计算结果进行了对比,结果表明,在静态变形范围内几何非线性气弹模型与FAST非常好的吻合,进一步验证了该模型计算正确性。通过降低叶片截面弯曲刚度,发现在叶片大变形时,几何非线性气弹模型可以获得更准确的结果。
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出版历程
  • 收稿日期:  2015-02-04
  • 刊出日期:  2015-12-05

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