天津科技

天津科技 ›› 2025, Vol. 52 ›› Issue (07): 32-35+39.

• 基础研究 • 上一篇    下一篇

风电叶片叶根建模方式对比及有限元分析验证

杨延鹏, 王伟伟, 焦浩恩   

  1. 东方电气（天津）风电叶片工程有限公司 天津 300480
  • 收稿日期:2025-06-04 出版日期:2025-07-25 发布日期:2026-01-06

Comparison of modeling methods for wind turbine blade roots and verification by finite element analysis

YANG Yanpeng, WANG Weiwei, JIAO Haoen   

  1. Dongfang Electric <Tianjin> Wind Turbine Blade Engineering Co.,Ltd.,Tianjin 300480,China
  • Received:2025-06-04 Online:2025-07-25 Published:2026-01-06

摘要： 叶根作为风电叶片和轮毂连接的关键部件,承受着复杂的拉伸、扭转、剪切等不同类型的载荷作用。当前,叶根建模方式主要分为两种,一种是螺栓和变桨轴承球采用实体单元的1/2N（1/N）模型;另一种是螺栓采用梁单元,变桨轴承球采用具有一定面积的仅承压用连接杆单元全模型（半模型）。利用有限元分析软件分析验证不同建模方式对叶根校核结果的影响,为叶片设计与仿真、叶根拉拔测试等提供理论参考。

关键词: 风力发电, 叶根螺栓, 有限元仿真, 叶根全模型, 叶根1/2N模型

Abstract: As a key component of the connection between wind turbine blade and hub,the blade root bears complex tensile,torsion,shear and other different types of loads. Currently,there are two modeling methods of blade root,one of them is 1/2N or 1/N model that the bolts and the balls of pitch bearing are solid elements,the other is full model that the bolts and the balls of pitch bearing are rod elements. The influence of two kinds of modeling methods on the root verification results is analyzed and verified using finite element analysis software,which is aimed to provide theoretical reference for blade design and simulation,blade root pulling test and so on.

Key words: wind turbine, blade root bolt, finite element simulation, full model of blade root, 1/2N model of blade root

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