结构参数对15 MW级风力机叶片气弹稳定性的影响  

Effects of structural parameters on aeroelastic stabilityof 15 MW wind turbine blades

作　　者：孙振业 孙子萱 夏煜盛 朱卫军 沈文忠 SUN Zhenye;SUN Zixuan;XIA Yusheng;ZHU Weijun;SHEN Wenzhong(College of Electrical,Energy and Power Engineering,Yangzhou University,Yangzhou 225127,China;Beijing Goldwind Science and Creation Wind Power Equipment Co.,Ltd.,Beijing 100176,China)

机构地区：[1]扬州大学电气与能源动力工程学院,江苏扬州225127 [2]北京金风科创风电设备有限公司,北京100176

出　　处：《扬州大学学报(自然科学版)》2025年第2期21-28,共8页Journal of Yangzhou University:Natural Science Edition

基　　金：国家自然科学基金项目资助项目(51905469);2024年度江苏省碳达峰碳中和科技创新专项基金资助项目(BT2024003);扬州大学研究生科研与实践创新计划资助项目(SJCX24_2256)。

摘　　要：为研究风轮叶片参数对大型风力机叶片气弹稳定性的影响,以国际能源署(International Energy Agency, IEA)公开的15 MW级风力机为研究对象,采用基于叶素动量理论、几何精确梁理论的气动弹性耦合动力学模型,研究风力机的叶片弹性中心、剪切中心、质量中心的分布以及叶片挥舞刚度、摆振刚度、扭转刚度的大小对气弹稳定性的影响。结果表明:叶片质心位置是影响气弹稳定性的关键因素,质心向翼型的前缘移动可大幅提高气弹稳定性,扭转刚度与临界颤振转速呈近似线性的正相关关系,剪心位置、挥舞刚度对叶片临界颤振转速有小幅影响,而弹心位置和摆振刚度对气弹稳定性几乎没有影响。To study the impact of blade parameters on the aeroelastic stability of large wind turbine blades,a 15 MW wind turbine by the International Energy Agency(IEA)is selected as the research object.An aeroelastic coupled dynamic model based on Blade Element Momentum theory and geometrically exact beam theory is employed to investigate the influences of elastic center,shear center,and mass center distributions of the wind turbine blade,as well as flapwise stiffness,edgewise stiffness,and torsional stiffness on aeroelastic stability.The results indicate that the position of the blade's mass center is a critical factor affecting aeroelastic stability.Moving the center of mass towards the leading edge of the airfoil significantly improves aeroelastic stability.There is an approximately linear positive correlation between torsional stiffness and critical flutter rotor speed.Meanwhile,the shear center position and flapwise stiffness have only a slight impact on the rotor's critical flutter speed,whereas the elastic center position and edgewise stiffness have almost no effect on aeroelastic stability.

关 键 词：风力机叶片 气弹稳定性 结构参数 颤振 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]