摘要
风力机叶片是整个风力发电机组的核心部件,其结构需保证风力机可以有足够的刚度、强度和稳定性。风力机叶片所受载荷是强度分析的关键。运用CATIA对风力机叶片进行三维建模,得到叶片的外型参数。基于叶素-动量理论(BEM)对风力机在正常工况下所受到的载荷进行分析和计算,并利用有限元软件(ANSYS)对其进行应力分析,得到了叶片上的应力分布规律,并对其进行了强度校核。分析结果可为风力机叶片载荷研究做参考。
Blade is one of the key components in wind turbine,which is needed to be enough stiffness,strength and stability.Loading calculation is significant for the blade strength analysis.A three-di-mension model of wind turbine blade is set up by CATIA software and the blade shape parameters are obtained.Based on blade element momentum（BEM）theory,the loading acted on the blade in normal operation is analyzed and calculated.Moreover,stress analysis of blade is carried out by finite element software （ANSYS）and stress distribution is obtained.At last,Strength checking for wind turbine blade is also carried out.The results of the analysis is a reference for wind turbine blade loads research.
出处
《机械设计与制造》
北大核心
2010年第8期42-44,共3页
Machinery Design & Manufacture
基金
河北省自然科学基金资助项目(E2009001395)
关键词
风力机叶片
有限元
叶素—动量定理
强度
载荷
Wind turbine blades
Finite element
Blade element momentum （BEM）theory
Strength
Load
