摘要
为实现大型风力发电机长展型叶片阻尼抑颤，从调节阻尼叶片的结构阻尼和结构刚度出发，提出穿孔型阻尼抑颤结构叶片（简称穿孔阻尼叶片）。通过建立弯扭耦合振动模型分析穿孔阻尼叶片的结构稳定性，并基于约束阻尼结构理论研究其结构参数对抑颤性能的影响。结合某1500kW风力机叶片相关参数，分别建立无阻尼、阻尼和穿孔型阻尼抑颤叶片结构，并对其抑颤性能和结构性能进行仿真分析。对比结果表明，穿孔阻尼叶片既有较高的结构阻尼，又有良好的结构刚度。
To achieve damping flutter-suppressing on the long spanwise blade of large wind turbine, pertorated damping and flutter-suppressing blade （perforated damping blade） was proposed in the consideration of structural damping and stiffness. The structural stability of perforated damping blade was analyzed by establishing the bending-torsion coupling vibration model, and the effect of structural parameters on flutter-suppressing abilities was studied based on the constrained damping structure theory. The blades with the structure of undamped, damped and perforated damping defibrillation were set up, respectively according to the relevant parameters of 1500 kW wind turbine blade, to simulate and analyze flutter-suppressing ability and structural property. The comparison results show that the perforated damping blade has both higher structural damping and better stiffness.
作者
孙大刚
郭进军
李占龙
燕碧娟
张洪宁
Sun Dagang, Guo Jinjun, Li Zhanlong, Yan Bijuan, Zhang Hongning(School of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2018年第10期2962-2969,共8页
Acta Energiae Solaris Sinica
基金
国家青年科学基金(51405323)
关键词
风力机
叶片
穿孔结构
阻尼抑颤
wind turbine
blade
perforated structure
damping flutter-suppressing
