CAJ | 학술논문

为提高风力机叶片气动结构性能，基于风力机风轮空气动力学及叶片结构动力学原理，选取叶片所处位置及扭转变形为自由度，在研究叶片摆振、摆振方向各阶振动模态的基础上，提出风力机叶片气动弹性耦合振动变形计算模型。基于风力机整机部件构成及输出功率特征，提出风力机叶片优化设计模型，对某5 MW风力机叶片的进行形状优化设计，通过对比分析优化叶片和原始叶片的输出功率及气弹载荷特性，验证优化叶片气动及结构性能的优越性。
위제고풍력궤협편기동결구성능，기우풍력궤풍륜공기동역학급협편결구동역학원리，선취협편소처위치급뉴전변형위자유도，재연구협편파진、파진방향각계진동모태적기출상，제출풍력궤협편기동탄성우합진동변형계산모형。기우풍력궤정궤부건구성급수출공솔특정，제출풍력궤협편우화설계모형，대모5 MW풍력궤협편적진행형상우화설계，통과대비분석우화협편화원시협편적수출공솔급기탄재하특성，험증우화협편기동급결구성능적우월성。
In order to improve aerodynamic and structural performance of wind turbine baldes, the flapwise and edgewise vi-bration mode of blades is obtained based on aerodynamic and dynamic structural model of wind turbine rotor.The coupling aeroelastic model including displacement and vibration is presented through choosing the basic degrees of freedom correspond-ing to elastic structural model.The optimization model of wind turbine blades is presented based on the output power and com-ponent of wind turbine rotor.With the model presented in this paper, one 5MW wind turbine rotor is applied and optimized. The output powers, axial and tangential forces of original and optimized blades are simulated and compared to validate the reli-ability of the design method.