玻璃钢/复合材料 ›› 2017, Vol. 0 ›› Issue (9): 93-96.

• 应用研究 • 上一篇    下一篇

风电叶片叶根连接陶瓷垫圈对螺栓疲劳性能的影响研究

季乐,李成良,鲁晓峰,唐金钱   

  1. 中材科技风电叶片股份有限公司,北京102101
  • 收稿日期:2016-11-11 出版日期:2017-09-28 发布日期:2017-09-28
  • 作者简介:季乐(1990-),男,工程师,硕士,主要从事复合材料产品结构设计方面的研究。

STUDY OF THE IMPACT ON WIND POWER BLADE ROOT BOLT FATIGUE PROPERTY OF CERAMIC GASKET

JI Le, LI Cheng-liang, LU Xiao-feng, Tang Jin-qian   

  1. Sinoma Wind Power Blade Co., Ltd., Beijing 102101, China
  • Received:2016-11-11 Online:2017-09-28 Published:2017-09-28

摘要: 首先利用Catia软件建立了风电叶片叶根模型,在专业网格划分工具中划分网格,采用商用有限元软件进行分析,结合有限元分析结果和载荷Markov矩阵,通过Matlab软件编写的疲劳损伤程序进行损伤分析,最终得到螺栓的损伤数值。比较了螺母下陶瓷垫圈存在与不存在时的螺栓应力,并分析了垫圈的存在对螺栓疲劳性能的影响。仿真结果表明采用螺母下放置陶瓷垫圈的方法可使螺栓损伤显著降低,疲劳性能有效提高。

关键词: 风电叶片, 陶瓷垫圈, 疲劳, 螺栓

Abstract: Wind power blade root model was built up using Catia, meshed by professional mesh tool, analyzed by commercial FEM software, based on which the FEA result is eventually got. Using the FEA result and load Markov matrix, the root bolt′s damage can be obtained by fatigue code in Matlab. In this article, bolt stress are compared between with and without ceramic gasket, and the impact on bolt fatigue property of gasket is explored. It is indicated that bolt damage is obviously reduced by putting ceramic gasket under the nut from the result of simulation, while fatigue life is effectively elongated.

Key words: wind power blade, ceramic gasket, fatigue, bolt

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