Journal of South China University of Technology (Natural Science Edition) ›› 2013, Vol. 41 ›› Issue (11): 62-67.doi: 10.3969/j.issn.1000-565X.2013.11.010

• Mechanical Engineering • Previous Articles     Next Articles

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

Liu Wang- yu Luo Yuan- qiang   

  1. School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2013-07-24 Online:2013-11-25 Published:2013-10-11
  • Contact: 刘旺玉(1966-)，女，博士，教授，主要从事现代加工方法与结构优化设计研究． E-mail:mewyliu@scut.edu.cn
  • About author:刘旺玉(1966-)，女，博士，教授，主要从事现代加工方法与结构优化设计研究．
  • Supported by:

    国家自然科学基金资助项目(50975090)

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Abstract:

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 3Dmodel of the whole wind turbine is established with SolidWorks,and a structural static analysis as well as a modalanalysis is performed with the finite element software ANSYS Workbench 14.0.The results indicate that the designedflexible wind turbine is more flexible than the conventional rigid one,and that the flexible connection between theblades and the hub remarkably reduces the natural frequency of the whole wind turbine,so that it helps to avoid thesympathetic vibration between the whole turbine and the blades,the tower or the wind rotor,protect the parts,andimprove the operation stability and life of the wind turbine.

Key words: flexible hinge, flexible wind turbine, ANSYS Workbench 14.0, structural static analysis, modal analysis