文章题目:Experimental study of the torsional aeroelastic instability of single-axis solar trackers under different turbulence intensities
文章作者:Xiaobin Zhang2,Wenyong Ma*1,2,3,Xiaohan Kang2,Qijun Shao4,Ziqi Tang5
作者单位:
1. State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Hebei Province, Shijiazhuang, China
2. School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, China
3. Innovation Center for Wind Engineering and Wind Energy Technology of Hebei Province, Shijiazhuang, China
4. AKCOME Metals Technology (Suzhou) Co., Ltd, Zhangjiagang City, Jiangsu Province, China
5. Shijiazhuang No.2 High School, Shijiazhuang City, Hebei, China
* Corresponding author
文章全文:https://doi.org/10.1016/j.jweia.2023.105486
主要内容:针对平单轴光伏支架的扭转气动失稳问题,本文在两种湍流度下进行节段模型气弹风洞试验,在风洞中重现了大幅扭转振动并同步测试了模型表面风压,通过对临界风速和气动耦合效应的分析明确了平单轴光伏支架气动失稳的基本特征。结果表明,不同倾角的风致扭转振动特征不同,高湍流度下发生大幅扭转振动的倾角范围大于低湍流度的对应值;在部分倾角下,外部激励可以诱发组件发生大幅的风致扭转振动,这可能是引起不同湍流度下扭转振动倾角范围不同的主要原因。不同倾角的组件大幅扭转振动分别表现出强耦合和弱耦合两种耦合特征,其中迎风端的流动状态对强耦合有明显的贡献。
期刊信息:《Journal of Wind Engineering and Industrial Aerodynamics》,ISSN:0167-6105,影响因子:4.437,中科院SCI期刊分区:工程技术2区