中文摘要：

当前弹性变形对风力机性能的影响是叶片气弹耦合机理研究重点,忽略了气弹变形对翼型气动特性的影响,而风力机性能很大程度上取决于变形后翼型气动性能。基于叶素动量理论及有限元法,采用MATLAB与APDL语言编制气动载荷插值程序,建立复合材料风力机叶片翼段气弹耦合模型。针对某2 MW实际叶片变形较大的叶尖附近翼段,选取厚度相同的3种不同翼型,通过不断迭代收敛研究翼段气弹变形对翼型气动特性的影响。研究表明,3种翼型气弹变形对其气动性能均有不同程度影响,而对WT180翼型影响较小。该研究对于设计抗气弹变形的新型翼型具有重要的理论指导作用。

英文摘要：

In recent years, the study of the wind turbine blade aeroelastic coupling is focused on the effect of elastic deflection to the wind turbine performance instead of the airfoil aerodynamic characteristic which decided the wind turbine performance largely. The areoelastic coupled model of composite wind turbine blade section is established based on bladed element momentum theory and finite element method. The aerodynamic interpolated code is programmed by using MATLAB and APDL software. The influence between the blade section aeroelastic deflection and the airfoil aerodynamic performance is studied by choosing three airfoils with the same thickness which is located to a 2 MW wind turbine blade tip section. The results indicated that the aerodynamic performances of the deflected airfoil is influenced by the aeroelasticity and the WT180 airfoil is influenced litter. The study is important for designing new airfoil with anti-aeroelastic deflection.