作　　者： ; ; ; ; ;

机构地区： 汕头大学工学院能源研究所

出　　处： 《太阳能学报》 2011年第9期1294-1302,共9页

摘　　要： 通过对风力机叶片翼型截面进行稳态气动力分析,同时结合整个叶片的结构动力学模态分析,创建风力机叶片稳态气动阻尼分析模型。从而在准确计算单翼型和单叶片气动阻尼的基础上,建立有效的气动阻尼分析方法,探究影响气动阻尼变化的关键参数。并以容易引发叶片失速振动的负气动阻尼为研究重点,采用典型的叶片模型进行实例计算,进而应用建立的气动阻尼分析方法进行叶片模型参数修正,旨在改善失速工况下的负气动阻尼,从而为风力机叶片的气动优化和抑振设计提供较准确的现实依据。 By analyzing on steady aerodynamic forces on an airfoil section of the wind turbine blade, combining with the blade modal analysis of the structural dynamics, a model for analyzing steady aerodynamic damping of wind turbine blade was established. Then, based on the accurate calculation on the aerodynamic damping of an airfoil section and a single blade, an effective analysis method of aerodynamic damping was established, and the key parameters which influence aerodynamic damping change were researched. Taking the negative aerodynamic damping which can easily initiate stall vibration of blade as the key point of the research, using a typical blade model as a sample, calculating analysis method of aerodynamic these can offer a more accurate turbine blade. on it, this paper modifies the parameters of blade model according to the established damping. So that the negative aerodynamic damping in stall situation is improved, realistic basis for aerodynamic optimization and vibration restraining design of wind turbine blade.

关 键 词： 水平轴风力机 叶片 稳态失速 气动阻尼

领　　域： [动力工程及工程热物理]