玻璃钢/复合材料 ›› 2016, Vol. 0 ›› Issue (8): 50-52.

• 基础研究 • 上一篇    下一篇

风电叶片螺栓安装预紧力研究

吴胜军, 冯威, 苑斐琦, 韩涛   

  1. 中国船舶重工集团公司第七二五研究所,洛阳双瑞风电叶片有限公司,洛阳471039
  • 收稿日期:2016-02-18 出版日期:2016-08-28 发布日期:2016-08-28
  • 作者简介:吴胜军(1979-),男,工程师,硕士,主要从事复合材料产品结构设计工作。

A STUDY ON ASSEMBLY PRE-TENSIONING FORCE OF WIND TURBINE BLADE

WU Sheng-jun, FENG Wei, YUAN Fei-qi, HAN Tao   

  1. Luoyang Ship Material Research Institute, Luoyang Sunrui Wind Turbine Blade Co., Ltd., Luoyang 471039, China
  • Received:2016-02-18 Online:2016-08-28 Published:2016-08-28

摘要: 风力发电叶片叶根连接螺栓是复合材料叶片与风轮轮毂连接的唯一的也是最关键的部件,通常在安装过程中会施加螺栓预紧力,保证叶片与轮毂连接的紧密性。预紧力大小的设定对螺栓是否能够正常使用,乃至叶片能否正常运行都有重大的影响,在螺栓连接的有限元分析中准确模拟螺栓的预紧力是一项复杂而困难的工作。论述了螺栓预紧力的理论计算过程及利用有限元技术在ANSYS中模拟螺栓预紧力的方法,为叶片根部连接施加预紧力提供可靠的依据和指导。

关键词: 预紧力, 风电叶片, 叶根连接方式, 预紧力系数

Abstract: The root joint of wind turbine blade is the only and critical component to connect blade and hub. Therefore, the bolt pre-tensioning force should be applied when installation to keep blade and hub closely. The value of pre-tensioning force applied influences not only the bolt functions, but also the normal operation of blade. However, simulating the bolt pre-tensioning force with high accuracy is very difficult and complicated in FEA of bolt connection. This paper illuminates the theoretical calculation process and uses FEA method to simulate the bolt pre-tensioning force in ANSYS WORKBENCH. The results provide basis and direction for applying the pre-tensioning force.

Key words: pre-tensioning force, wind turbine blade, blade root connection, pre-tensioning force factor

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