复合材料科学与工程 ›› 2020, Vol. 0 ›› Issue (5): 100-104.

• 应用研究 • 上一篇    下一篇

风电叶片后缘建模方法对屈曲稳定性的影响

赵春妮, 刘清, 陈文光, 李军向   

  1. 明阳智慧能源集团股份公司,中山528437
  • 收稿日期:2019-12-24 出版日期:2020-05-25 发布日期:2020-05-28
  • 作者简介:赵春妮(1986-),女,学士,主要从事风电叶片结构设计和分析方面的工作,zhaochunni@mywind.com.cn。

THE EFFECTS OF WIND TURBINE BLADE TRAILING EDGE MODELING WAY ON BUCKLING

ZHAO Chun-ni, LIU Qing, CHEN Wen-guang, LI Jun-xiang   

  1. Ming Yang Smart Energy Group Limited, Zhongshan 528437, China
  • Received:2019-12-24 Online:2020-05-25 Published:2020-05-28

摘要: 后缘失稳是风电叶片常见的失效模式之一,本文主要通过有限元方法研究了后缘芯材斜角、密集的后缘UD(即铺放在后缘的单向布)错层等情况的不同处理方式对屈曲稳定性的影响。结果表明:计算风电叶片屈曲稳定性时,后缘粘接胶可定义为实体单元或壳体单元(等效为小腹板);可用不少于三个厚度台阶模拟后缘芯材斜角;对逐层错层的后缘UD建模时可进行一定程度的合并简化。

关键词: 风电叶片, 有限元建模, 屈曲稳定性, 芯材斜角, 后缘UD, 粘接胶, 复合材料

Abstract: Buckling of trailing edge is one of the main failure modes of wind turbine blades. In this paper, the finite element method is used to study the difference of buckling in different modeling methods, including, the slope of trailing edge core, trailing edge UD staggered layer, and adhesive modeling method. The results indicate that the trailing edge adhesive may be defined as a solid or shell element (equivalent to a small web). The slope of trailing edge core can be simulated by no less than 3 steps, and the trailing edge UD of each staggered layer can be appropriately simplified.

Key words: wind turbine blade, finite element modeling, buckling, the core slope in the trailing edge, trailing edge UD, adhesive, composites

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