安宗文;高兴峰;马强;寇海霞;
AN Zong-wen;GAO Xing-feng;MA Qiang;KOU Hai-xia;College of Mechano-Electronic Engineering,Lanzhou Univ. of Tech.;

• 1:兰州理工大学机电工程学院

摘要(Abstract)：

针对目前风电叶片有限元模型存在铺层不合理的问题,以某1.5 MW风电叶片为研究对象,利用Solidworks软件生成叶片三维模型;再将其导入大型有限元软件Abaqus中,按照叶片铺层理论进行分区域铺层,生成叶片有限元模型,使其更接近叶片的真实铺层状况;在有限元数值计算中,分析了叶片的振动特性以及在50 m/s的极限风速下的应力分布特征.结果表明,叶片模型在模态、强度、刚度三个方面均满足设计要求,叶片的危险截面位于距叶尖约■处,应力主要分布于叶片展向的■处,且主要承载结构为主梁和腹板.
In view of the unreasonable lamination in the finite element model of wind turbine blades at present, taking a 1.5 MW wind turbine blade as the research object, Solidworks software is used to generate three-dimensional model of blades, which is then imported into the large-scale finite element software Abaqus, and the zonal lamination can be generated according to the theory of blade lamination. The finite element model of the blade is used to make it closer to the true lamination condition of the blade. In the finite element numerical calculation, vibration characteristics of the blades and stress distributions in the blades under the limit wind speed of 50 m/s are analyzed. Our predicted results show that the established blade lamination model meets the design requirements in terms of mode, strength and rigidity. The dangerous section of the blade is located at about 1/3 from the tip of the blade, and the stress is mainly distributed at 1/3～2/3 from the tip of a blade, and the main bearing structure is the main beam and web of a blade.

关键词(KeyWords)： 复合材料;风电叶片;铺层;振动特性;静力分析
composite material;wind turbine blade;layup;vibration characteristics;Static analysis

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51665029)

作者(Author): 安宗文;高兴峰;马强;寇海霞;
AN Zong-wen;GAO Xing-feng;MA Qiang;KOU Hai-xia;College of Mechano-Electronic Engineering,Lanzhou Univ. of Tech.;

Email:

DOI:

参考文献(References)：

• [1] MANWELL J F,MCGOWAN J G,ROGERS A L.Wind energy explained:theory,design and application [M].New York:John Wiley & Sons,2010.
• [2] 廖明夫,GASCH R,TWELE J.风力发电技术 [M].西安:西北工业大学出版社,2009.
• [3] 潘艺,周鹏展,王进.风力发电机叶片技术发展概述 [J].湖南工业大学学报,2007,25(3):48-51.
• [4] 中国产业信息网.2017年中国风电装机容量、风电新建设规模及叶片成本分析 [EB/OL].(2017-11-10).http://www.chyxx.com/industry/201711/581209.html.
• [5] 杨瑞,张志勇,王强,等.基于流固耦合的风力机预应力模态分析 [J].兰州理工大学学报,2018,44(3):57-61.
• [6] 王昊,范海哲,李帅斌.风力发电机叶片建模及有限元分析 [J].上海电力学院学报,2016,32(3):257-260.
• [7] 李建华,毛文贵,傅彩明.复合材料风机叶片有限元模态分析 [J].湖南工程学院学报(自然科学版),2011,21(01):28-30.
• [8] 赵娜,李军向,李成良.基于ANSYS建模的风力机叶片模态分析及稳定性分析 [J].玻璃钢/复合材料,2010(6):14-17.
• [9] 李仁年,刘有亮.大型风力机叶片铺层及模态分析 [J].太阳能学报,2015,36(1):49-53.
• [10] 闫景玉.大型风机叶片的疲劳寿命估算 [D].南京:南京航空航天大学,2013.
• [11] International Electrotechnical Commission.Wind turbines-Part 1:design requirements:IEC61400-1 [S].Geneva:IEC,2005.