文章题目：Experimental Investigation of the Torsional Aeroelastic Instability of Single-Axis Solar Trackers

文章作者：Xiaobin Zhang²，Wenyong Ma^*1,2,3,4，Haiyun Li²，Qijun Shao⁵， Xiaohan Kang²

作者单位：

1. State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang, 050043, China

2. School of Civil Engineering, Shijiazhuang Tiedao University, Hebei, 050043, China

3. Key Laboratory of Roads and Railway Engineering Safety Control (Shijiazhuang Tiedao University), Ministry of Education, Hebei, Shijiazhuang, 050043, China

4. Innovation Center for Wind Engineering and Wind Energy Technology of Hebei Province, Hebei, 050043, China

5. AKCOME Metals Technology (Suzhou) Co., Ltd, Zhangjiagang City, Jiangsu Province, P.R.China

* Corresponding author

文章全文：Doi: 10.1142/s021945542450007x

摘要：强风作用下平单轴光伏支架的扭转气动失稳严重影响着光伏支架的安全，其大幅度扭转振动机理尚不明确。本文通过气弹模型风洞试验，对平单轴光伏支架气动力和位移进行同步测试，分析了气动失稳的倾角范围和临界风速，结果表明：在-10°~15°的倾角范围内光伏支架发生大幅扭转振动，临界风速随着倾角的增加而降低；动态扭矩系数的标准差远大于静止状态，动态扭矩系数表现出明显的卓越频率特征这是由于光伏支架扭转振动引起的而不是风荷载；迎风区的风荷载促进光伏支架振动，而背风区的风荷载在光伏组件倾角较小时促进振动，倾斜角较大时抑制振动。（译）

期刊信息：《International Journal of Structural Stability and Dynamics》，ISSN：0219-4554，影响因子：2.957，中科院SCI期刊分区：工程技术3区