中文摘要：

设计了一种用于风洞实验的风力机模型叶片，为了使模型叶片的结构设计达到试验要求，基于传统Wilson方法．考虑叶尖损失和失速状态下动量理论的失效修正，采用改进后的Wilson优化设计方法，利用MATLAB优化工具箱计算出各截面的参数，然后针对叶片的受力情况，根据各截面几何参数利用材料力学理论知识对叶片的强度和刚度进行校核．计算得到叶片的总应力、转角和挠度沿叶高的分布曲线。分析表明，叶片的最大总应力、最大转角和最大挠度都远小于叶片材料的许用值。因此，该风力机模型叶片在结构设计、强度和刚度上是满足要求的，为风力机模型的进一步试验研究奠定了基础。

英文摘要：

A kind of wind turbine model blade which is used for wind tunnel test is designed in the paper.The structure design of the blade model has achieved the requirements of experiment by steps bellow, tip loss is considered and failure of momentum theory under stall condition is corrected based on the traditional Wilson method. After using the improved Wilson optimization design method, the parameters of each section are calculated by MATLAB optimization toolbox. Then aiming at the stress of the blade and according to each section geometry parameters, material mechanics theory is used to check the blade strength and stiffness. Finally the distribution curves of the total stress, the blade relative angle and deflection calculated along the blade height are got. The results show that the maximum total stress, maximum relative angle and maximum deflection are far less than the blade material allowable values. Therefore, the blade structure design ,the blade strength and rigidity meet the requirements, and lay foundation for subsequent experimental analysis research.