A study on wind vibration response of a tower heliostat based on comparison of a rigid model and an aeroelastic model wind tunnel test
LIU Zhenhua1，NIU Huawei1，LI Hongxing2，HE Shaohua2
1.College of Civil Engineering, Hunan University, Changsha 410082, China;
2.Northwest Electric Power Design Institute Co., Ltd.of China Power Engineering Consulting Group, Xi’an 710075, China
Abstract：The tower heliostat is an important concentrating device in the solar power tower plant, and the control load is wind load. A finite element model of the tower heliostat structure was established by ANSYS. The modal analysis shows that the frequency distribution of structure is dense, and the change of the wind attack angle has little effect on the low-order mode of the heliostat structure. Based on the pressure measurement wind tunnel test of the rigid model, the wind-induced vibration response of the tower heliostat was analyzed by ANSYS, and the aeroelastic model vibration test was carried out. The errors between the two are within 10%. The results show that the modes that affect the wind-induced vibration of the structure are mainly the first 3 orders, and the displacement response at the end of the main purlin is the largest. The wind vibration coefficient is recommended to be 1.57.
刘镇华1，牛华伟1，李红星2，何邵华2. 基于刚性模型与气弹模型风洞试验对比的塔式定日镜风振响应研究[J]. 振动与冲击, 2022, 41(8): 134-140.
LIU Zhenhua1，NIU Huawei1，LI Hongxing2，HE Shaohua2. A study on wind vibration response of a tower heliostat based on comparison of a rigid model and an aeroelastic model wind tunnel test. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(8): 134-140.
[1] Brosens, Pierre. Oscillations of a rigid heliostat mirror caused by fluctuating wind[J]. Solar furnace support studies, 1960,2:117-132.
[2] Hoyer, Sigurd. Wind excited rigid-body vibrations of the heliostat mirror for the proposed dept. of defense solar furnace[J]. Solar Energy,1962,6(4):169.
[3] J.M. Terrés-Nícoli, C. Mans, J.P.C. King. Dynamic Effects of a Heliostat to Wind Loading[J]. Energy Procedia, 2014, 49:1728-1736.
[4] Todd Griffith D., Moya Adam C., Ho Clifford K., et al. Structural Dynamics Testing and Analysis for Design Evaluation and Monitoring of Heliostats[J]. Journal of Solar Energy Engineering,2015,137(2).
[5] 王莺歌,李正农,宫博,等.定日镜结构风振响应的时域分析[J].振动工程学报,2008,21(5):458-464.
WANG Ying-ge, LI Zheng-nong, GONG Bo, et al. Time-domain analysis on wind-induced dynamic response of heliostat[J]. Journal of Vibration Engineering,2008,21(5):458-464.
[6] 王莺歌,李正农,李秋胜,等.POD法在定日镜风振响应计算中的应用[J].振动与冲击,2008,27(12):107-111+183.
WANG Ying-ge, LI Zheng-nong, LI Qiu-sheng, et al. Application of POD in calculation of heliostat’s dynamic response to wind induction[J]. Journal of Vibration and Shock, 2008,27(12):107-111+183.
[7] 宫博,李正农,吴红华,等.太阳能定日镜结构基于频域的风振响应分析[J].太阳能学报,2009,30(6):759-763.
GONG Bo, LI Zheng-nong, WU Hong-hua, et al. Delection analysis for reflector plate of heliostat based on this plate flexure theory[J]. ACTA ENERGIAE SOLARIS SINICA,2009,30(6):759-763.
[8] Gong B , Li Z , Wang Z , et al. Wind-induced dynamic response of Heliostat[J]. Renewable Energy, 2012, 38(1):206-213.
[9] 李正农,吴卫祥,梁笑寒,等.基于实测的塔式太阳能定日镜动力特性分析[J].太阳能学报,2014,35(11):2133-2138.
LI Zheng-nong, WU Wei-xiang, LIANG Xiao-han, et al. Dynamic characteristics analysis for a solar power tower heliostat based on the field measurements[J]. ACTA ENERGIAE SOLARIS SINICA, 2014,35(11):2133-2138.
[10] 黄嵩,黄铭枫,叶何凯,等.定日镜结构的动力风效应和风致疲劳损伤研究[J].工程力学,2017,34(12):120-130.
HUANG Song, HUANG Ming-feng, YE He-kai, et al. Dynamic wind-induced vibration and fatigue damage analysis of heliostat structures[J]. ENGINEERING MECHANICS,2017,34(12):120-130.
[11] 黄嵩.太阳能定日镜结构的风致疲劳及镜面破坏研究[D].杭州：浙江大学，2017.
HUANG Song. Research on Wind-Induced Fatigue & Damage of Mirror for Heliostat Structure[D]. Hang zhou: Zhejiang University,2017.
[12] 冯煜,陈小安.三维风场各分量对定日镜动态响应的影响研究[J].振动与冲击,2017,36(8):156-163.
FENG Yu, CHEN Xiao-an. Effect of each direction component in 3D wind field on dynamic response of heliostat[J]. Journal of Vibration and Shock, 2017,36(8):156-163.
[13] 王迎春,徐翔,李正农.定日镜结构风振计算[J].西北水电,2020,(5):89-91.
WANG Ying-chun, XU Xiang, LI Zheng-nong. Wind-Induced Vibration Calculation of Heliostat Structure[J]. Northwest Hydropower,(5):89-91.
[14] JGJ/T 338-2014 建筑工程风洞试验方法标准[S].北京：中国建筑工业出版社，2014：5-6.
JGJ/T 338-2014 Standard for wind tunnel test of buildings and structures[S].Beijing: China Architecture & Building Press, 2014:5-6.
[15] GB 50009-2012 建筑结构荷载规范[S].北京：中国建筑工业出版社，2012.
GB 50009-2012 Load code for the design of building structures[S].Beijing: China Architecture & Building Press, 2012.
[16] 陈政清.桥梁风工程[M].北京：人民交通出版社,2005.125-126.
CHEN Zheng-qing. Bridge wind engineering[M]. Beijing: China Communications Press, 2005.125-126.
[17] 邹云峰.巨型冷却塔群的风效应及其风洞试验方法研究[D].长沙：湖南大学土木工程学院,2013.
ZOU Yun-feng. Study on wind effects and wind-tunnel test method for super large cooling towers group[D]. Changsha: College of Civil Engineering, Hunan University, 2013.
