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基于数字图像相关技术的风电叶片静态特性试验研究

汪小平 胡雪兵 周华飞 秦良忠 朱沛东 吴洪贵

汪小平, 胡雪兵, 周华飞, 秦良忠, 朱沛东, 吴洪贵. 基于数字图像相关技术的风电叶片静态特性试验研究[J]. 应用光学, 2015, 36(5): 811-817. doi: 10.5768/JAO201536.0505004
引用本文: 汪小平, 胡雪兵, 周华飞, 秦良忠, 朱沛东, 吴洪贵. 基于数字图像相关技术的风电叶片静态特性试验研究[J]. 应用光学, 2015, 36(5): 811-817. doi: 10.5768/JAO201536.0505004
Wang Xiao-ping, Hu Xue-bing, Zhou Hua-fei, Qin Liang-zhong, Zhu Pei-dong, Wu Hong-gui. Experimental study on static characteristics of wind turbine blade withdigital image correlation method[J]. Journal of Applied Optics, 2015, 36(5): 811-817. doi: 10.5768/JAO201536.0505004
Citation: Wang Xiao-ping, Hu Xue-bing, Zhou Hua-fei, Qin Liang-zhong, Zhu Pei-dong, Wu Hong-gui. Experimental study on static characteristics of wind turbine blade withdigital image correlation method[J]. Journal of Applied Optics, 2015, 36(5): 811-817. doi: 10.5768/JAO201536.0505004

基于数字图像相关技术的风电叶片静态特性试验研究

doi: 10.5768/JAO201536.0505004
基金项目: 

国家自然科学基金(51208384);浙江省自然科学基金(LY12E08009);浙江省钱江人才计划(2012R10071)

详细信息
    作者简介:

    汪小平(1973-),男,江西修水人,硕士,副教授,主要从事复合材料性能测试。Email: 29019100@qq.com

    通讯作者:

    周华飞(1978-),男,浙江衢州人,博士,教授,主要从事结构健康监测方面的研究。 Email: mailtofei@wzu.edu.cn

  • 中图分类号: TN202;TK83

Experimental study on static characteristics of wind turbine blade withdigital image correlation method

  • 摘要: 进行了风电叶片双轴静载试验,全程采用数字图像相关技术监测其全场三维变形。结果表明,在各工况荷载作用下,风电叶片的三维位移分布具有良好规律,而应变分布则无明显规律。3个方向位移中,平面外位移远大于平面内位移。双轴荷载作用下,风电叶片挥舞方向位移与摆振方向位移均随加载等级增大而增大。在风电叶片全场范围内,挥舞方向位移沿叶片展向逐渐增大,直至叶尖达到最大值。叶片各点的摆振方向位移均为负位移,负位移最大值出现在叶片中部。在叶根至41%叶长(55 cm)区域内,叶片各工况下的展向位移几乎接近于0;而在41%叶长至叶尖区域,当荷载较小时,叶片迎风面纤维的受拉伸长量大于平面外弯曲的展向位移分量而产生正位移;随着荷载增大,叶片平面外弯曲变形的展向位移分量大于迎风面纤维的受拉伸长量而产生负位移。
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