玻璃钢/复合材料 ›› 2016, Vol. 0 ›› Issue (6): 81-83.

• 应用研究 • 上一篇    下一篇

风电叶片疲劳测试动态应变受温度的影响

梁 颖   

  1. 连云港中复连众复合材料集团有限公司,连云港222006
  • 收稿日期:2016-04-12 出版日期:2016-06-28 发布日期:2016-06-28
  • 作者简介:梁颖(1983-),男,工程硕士,主要从事风机叶片制造,liangy@lzfrp.com。

THE DYNAMIC STRAIN INFLUENCED BY TEMPERATURE IN FATIGUE TEST BLADE

LIANG Ying   

  1. Lianyungang Zhongfu Lianzhong Composites Group Co., Ltd., Lianyungang 222006, China
  • Received:2016-04-12 Online:2016-06-28 Published:2016-06-28

摘要: 在不同的环境温度下,风电机组风轮叶片主要单向布复合材料的模量受温度影响较大,温度的变化导致叶片的刚度变化,从而自振频率也发生变化,最后导致叶片疲劳测试动态应变发生变化。而对于疲劳测试载荷的控制主要依据动态应变。研究了温度如何影响疲劳测试中的叶片,并总结出如何调节变频器以获得较稳定的关键区域动态应变,从而保证施加的疲劳测试载荷的准确性。

关键词: 风力发电机组叶片, 动态应变, 变频器, 温度, 刚度

Abstract: In the environment with different temperature, the modulus of unidirectional fabric composites in wind turbine blade is influenced by temperature at large extent, resulting in the change of the blade nature frequency, finally leading to dynamic strain changing in the fatigue test blade. And the fatigue test load is monitored by the dynamic strain. This paper introduced how temperatures influence fatigue test blade, and summarized how to adjust the frequency change to get relative dynamic strain in the critical area to ensure the accuracy of the applied fatigue test load.

Key words: wind turbine rotor blade, dynamic strain, frequency changer, temperature, stiffness

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