流体机械Issue(12)：33-36,4.DOI:10.3969/j.issn.1005-0329.2015.12.007
大功率风力机叶片模态及气动特性分析
Analysis of Modal and Aerodynamic of High-power Wind Turbine Blade
摘要
Abstract
This work attempts to study the modal and aerodynamic of a high-power wind turbine blade.The motion differential e-quation with bending and twisting coupling vibration of the blade airfoil is established,a 3D model of wind turbine blade is presen-ted based on the UG software through coordinate transformation,the first 6 natural modals of the blade are obtained based on the MSC /Patran.The flow field model of blade is built by using Ansys/Workbench,the effects of wind speed and pneumatic angle of attack on the blade vibration are analyzed.The results show that the vibration modes in the tip of the blade are more obvious,and the greater the wind speed and angle of attack,the greater the deformation of blade vibration at the same cross section position.关键词
大功率风力机/叶片/模态/有限元法/气动特性Key words
high-power wind turbine/blade/modal/finite element method/aerodynamic分类
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周丹..大功率风力机叶片模态及气动特性分析[J].流体机械,2015,(12):33-36,4.基金项目
国家自然科学基金项目 （）
