| 抛物面槽式聚光器的风致响应分析与优化 |
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| 引用本文： | 邹琼,李正农,吴邦本,吴红华,邹锋.抛物面槽式聚光器的风致响应分析与优化[J].太阳能学报,2021(2):43-48. |
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| 作者姓名： | 邹琼 李正农 吴邦本 吴红华 邹锋 |
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| 作者单位： | 湘潭大学土木工程与力学学院;建筑安全与节能教育部重点实验室（湖南大学）;湖南绿碳建筑科技有限公司;中国建筑第四工程局有限公司 |
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| 基金项目： | 国家自然科学基金(51708478,51278190)。 |
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| 摘 要： | 该文首先通过在湖南大学HD-3大气边界层风洞中对聚光器模型进行测压试验,获得聚光器各测点在不同工况下的风压时程;然后通过有限元软件对聚光器的风致响应进行分析,获得反射镜的峰值位移响应和风振系数,并给出最不利工况下的位移响应分布云图;最后对聚光器构件截面尺寸进行优化。分析结果表明:在各工况下峰值位移响应最大值均出现在反射镜长边中点附近的边缘部位;优化后的单个聚光器的总体重量比原结构降低约6%。
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| 关 键 词： | 太阳能聚光器 风洞 数值模拟 结构优化 风致响应 风振系数 |
WIND-INDUCED RESPONSE ANALYSIS AND OPTIMIZATION OF PARABOLIC TROUGH CONCENTRATOR |
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| Zou Qiong,Li Zhengnong,Wu Bangben,Wu Honghua,Zou Feng.WIND-INDUCED RESPONSE ANALYSIS AND OPTIMIZATION OF PARABOLIC TROUGH CONCENTRATOR[J].Acta Energiae Solaris Sinica,2021(2):43-48. |
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| Authors: | Zou Qiong Li Zhengnong Wu Bangben Wu Honghua Zou Feng |
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| Affiliation: | (College of Civil Engineering and Mechanics,Xiangtan University,Xiangtan 411105,China;Key Laboratory of Building Safety and Energy Efficiency(Hunan University),Changsha 410082,China;Hunan Green Carbon Building Technology Corp.Ltd.,Changsha 410082,China;China Construction Fourth Engineering Division Corp.Ltd.,Guangzhou 510665,China) |
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| Abstract: | Firstly,in this paper,a wind tunnel test is carried out in the atmospheric boundary layer wind tunnel of the HD-3 in Hunan University.The time history of wind pressure of trough concentrator under different working conditions are obtained.Then,the windinduced dynamic response of the trough concentrator is analyzed through finite element model,so that the peak displacement response and wind-induced vibration coefficient of the mirror are obtained.In addition,the nephogram of displacement response distribution under the most unfavorable working conditions is given.Finally,the section size of the supporting structure of trough concentrator are optimized.The results show that,the maximum peak displacement response appears near the midpoint of the span wise of the concentrator under various working conditions.The overall weight of the optimized structure is reduced by about 6%compared to the original structure. |
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| Keywords: | solar concentrators wind tunnels numerical simulation structural optimization wind-induced response wind-induced vibration coefficient |
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