摘要
以风力机的通用集成翼型为对象,分析了通用翼型升力系数、升阻比等气动性能。选取了自主设计的相对厚度为18%风力机通用翼型,完成了小型风力机叶片的气动外形设计。以修正的风力机风轮空气动力学模型为基础确定了叶片弦长以及扭角的分布。根据叶片的形状参数,完成了叶片的三维实体以及有限元模型的建立,应用ANSYS软件分析了叶片的结构强度性能。采用玻璃纤维材料,完成了叶片的加工制作。对制作完成叶片进行了风轮的组装,测试分析了组装风轮的输出功率特性。研究结果为风力机叶片的设计制造提供了理论支持。
Taking the general integrated airfoil of the wind turbine as the object,the aerodynamic performances such as the universal wing lift factor and the lift resistance ratio are analyzed in this paper.A self-designed airfoil with 18%relative thickness is selected to complete the aerodynamic shape design of the small wind turbine blades.The distribution of blade string length and twist angle is determined based on the modified aerodynamic model of the wind turbine rotor.According to the shape parameters of blade,the 3D solid model and finite element model are presented to study the structural stress of the wind turbine blade by using the ANSYS software.Using the fiber reinforced polymer,the wind turbine blades are manufactured and the rotor is assembled.The output powers are tested at different wind speeds to verify the reliability of the processing method.The results also provide theoretical support for design and manufacture of the wind turbine blades.
作者
兰平
王旭东
LAN Ping;WANG Xu-dong(Chongqing Key Laboratory of Manufacturing Equipment Mechanism Design and Control,Chongqing Technology and Business University,Chongqing 400067,China)
出处
《机械研究与应用》
2022年第1期20-22,25,共4页
Mechanical Research & Application
基金
重庆市基础与前沿研究计划项目:基于风轮动态失速特性的风力机叶片气弹耦合机理及形状设计研究(编号:cstc2016 jcyjA0448)
重庆市教委科学技术研究项目:海上风力机叶片气动外形与结构性能一体化协同优化设计理论研究(编号:KJ1600628)。
关键词
风力机叶片
通用翼型
气动设计
结构强度
输出功率
wind turbine blade
general integrated airfoil
aerodynamic design
structural stress
output power
