摘要
发展了一套快速预测风力机动态响应的分析方法。针对南京航空航天大学设计的兆瓦级大型风力机叶片NH1500,按照工程梁方法对叶片及塔架结构进行简化,生成有限元梁模型。根据动量叶素理论编写气动力程序,为有限元模型提供气动载荷,从而完成时域情况下风力机的响应计算。最后,分析了叶片的几何非线性效应对响应的影响规律。
A fast method to calculate aerodynamic force and response of wind turbine is discussed.The response of blade NH1500 which is designed by Nanjing University of Aeronautics and Astronautics is analyzed.The blades and tower of wind tur-bine are simplified using beam model.The aerodynamic force model based on blade element momentum（BEM） theory is developed.The results of aerodynamic force are applied to the structural model formed using commercial finite element software and the response of wind turbine is simulated in time domain.Finally,the impact of geometry nonlinearity to the blade of wind turbine is discussed.
出处
《空气动力学学报》
EI
CSCD
北大核心
2012年第1期125-129,共5页
Acta Aerodynamica Sinica
基金
973项目(2007CB714603)
