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Structural investigation of composite wind turbine blade considering structural collapse in full-scale static tests

机译：全面静态试验中考虑结构倒塌的复合材料风力涡轮机叶片的结构研究

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摘要

This study is concerned with an actual collapse testing under the flap-wise loading for a large full-scale composite wind turbine blade, and a discussion is conducted to assess and evaluate the structural response of the blade during loading and after collapse by correlating experimental findings with numerical model predictions. A videometrics technique is adopted to measure the integral deformation and the local deformation of the wind turbine blade under the flap-wise loading. The measured results show that the displacement of the blade tip is up to 11 m at the ultimate load which is 160% of the extreme design load for the tested blade. A simple method is proposed to identify the exact failure location of the blade based on the deformation data. The thorough analysis results indicate that the aerodynamic shells deb-onding from the adhesive joints is the initial failure mechanism causing a progressive collapse of the blade structure.
机译：这项研究与大型全尺寸复合风力涡轮机叶片在襟翼方向载荷下的实际坍塌测试有关，并通过相关实验结果进行讨论，以评估和评估叶片在载荷期间和坍塌后的结构响应。数值模型预测。采用视频技术测量风门叶片在襟翼方向载荷下的整体变形和局部变形。测量结果表明，在极限载荷下，叶片尖端的位移最大为11 m，这是被测叶片极限设计载荷的160％。提出了一种基于变形数据识别叶片确切失效位置的简单方法。全面的分析结果表明，与胶粘剂连接的空气动力学壳体是导致叶片结构逐渐塌陷的初始破坏机制。

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  • 来源
    《Composite Structures》 |2013年第3期|15-29|共15页
  • 作者

    Jinshui Yang; Chaoyi Peng; Jiayu Xiao; Jingcheng Zeng; Suli Xing; Jiaotong Jin; Hang Deng;

  • 作者单位

    College of Aerospace and Materials Engineering, National University of Defense Technology, Changsha 410073, China;

    College of Aerospace and Materials Engineering, National University of Defense Technology, Changsha 410073, China;

    College of Aerospace and Materials Engineering, National University of Defense Technology, Changsha 410073, China;

    College of Aerospace and Materials Engineering, National University of Defense Technology, Changsha 410073, China;

    College of Aerospace and Materials Engineering, National University of Defense Technology, Changsha 410073, China;

    Zhuzhou Times New Material Technology Co., Ltd., Zhuzhou 412007, China;

    Zhuzhou Times New Material Technology Co., Ltd., Zhuzhou 412007, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    polymer-matrix composites; structural investigation; wind turbine blade; videometrics;

    机译：聚合物基复合材料;结构调查;风力涡轮机叶片视频指标;

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