大型风力机伞形风轮柔性连接机构设计与分析  

Design and Analysis of Flexible Connecting Mechanism for Large-Scale Wind Turbine with Coning Rotor

作　　者：刘旺玉[1] 罗远强[1] 

机构地区：[1]华南理工大学机械与汽车工程学院,广东广州510640

出　　处：《华南理工大学学报（自然科学版）》2013年第11期62-67,共6页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50975090)

摘　　要：通过对比两种传统柔性铰链的结构特点,基于直梁型柔性铰链设计了一种可用于风力机叶片与轮毂之间的柔性连接机构,并用SolidWorks进行整机的三维建模,然后导入通用有限元分析软件ANSYS Workbench 14.0中进行结构静力分析和模态分析.分析结果表明,所设计的柔性风力机比传统刚性风力机具有更好的柔性,在叶片与轮毂之间采用柔性连接,大大降低了风力机整机的固有频率,避免与叶片、塔架和风轮等部件发生共振,保护了各个部件,增强了风力机运行的稳定性,大大提高了其工作寿命.By comparing the structural characteristics of two traditional flexible hinges,a flexible mechanism con-necting the blades with the hub of the wind turbine is designed based on straight-beam flexible hinges.Then,a 3D model of the whole wind turbine is established with SolidWorks,and a structural static analysis as well as a modal analysis is performed with the finite element software ANSYS Workbench 14.0.The results indicate that the designed flexible wind turbine is more flexible than the conventional rigid one,and that the flexible connection between the blades and the hub remarkably reduces the natural frequency of the whole wind turbine,so that it helps to avoid the sympathetic vibration between the whole turbine and the blades,the tower or the wind rotor,protect the parts,and improve the operation stability and life of the wind turbine.

关 键 词：柔性铰链 柔性风力机 ANSYS WORKBENCH 14 0 结构静力分析 模态分析 ANSYS WORKBENCH 14 0 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]