大型碟式光热太阳能聚光器风致振动响应分析

颜健; 彭佑多; 龙东平; 何轶; 马俊; 曾俊

doi:10.13433/j.cnki.1003-8728.2014.1112

大型碟式光热太阳能聚光器风致振动响应分析

doi: 10.13433/j.cnki.1003-8728.2014.1112

颜健¹,
彭佑多^1,2, ,,
龙东平²,
何轶¹,
马俊¹,
曾俊¹

1.
湖南科技大学机械设备健康维护省重点实验室, 湘潭 411201;
2.
湖南科技大学机电工程学院, 湘潭 411201

基金项目:

国家自然科学基金项目(51275166)

湖南省省市联合基金项目(11JJ8006)

湖南省战略性新型产业重大科技攻关项目(2011GK4058)资助

详细信息

作者简介:
颜健(1988- ),硕士研究生,研究方向为碟式光热太阳能系统抗风,yanjiancaoyue@163.com。

通讯作者:
彭佑多,教授,博士,ydpeng1964@163.com。

计量
- 文章访问数: 139
- HTML全文浏览量: 27
- PDF下载量: 7
- 被引次数: 0
出版历程
- 收稿日期: 2013-05-04

Analysis on Wind-induced Vibration Response of Large Dish Photo-thermal Solar Energy Concentrator

Yan Jian¹,
Peng Youduo^{1,2
, ,},
Long Dongping²,
He Yi¹,
Ma Jun¹,
Zeng Jun¹

1.
Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology, Xiangtan 411201;
2.
Shool of Electromechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201

摘要

摘要: 以25 kW碟式光热太阳能发电系统聚光器为对象,建立其有限元模型,基于谐波叠加理论编制Matlab程序得到的脉动风载荷时程开展聚光器风振响应研究.得到了聚光器不同工况下关键节点的统计特征和位移风振系数,给出了部分节点的响应时程数据且对位移时程进行了功率谱分析.结果表明:聚光器在极限风载荷的作用下以强迫振动为主,且在基频处有轻微的共振;聚光器最不利的工况为90°-60°,安全避风工况为-90°-90°,最不利工况下各关键节点的整体位移风振系数为2.4;聚光器结构在极限风载荷作用下处于弹性变形阶段,但曲面固镜壳振动强烈,对于反射镜面的安全性有待于进一步的研究.
- 碟式聚光器 /
- 太阳能 /
- 风振响应 /
- 位移风振系数 /
- 功率谱
Abstract: Having the concentrator of 25 kW dish photo-thermal solar system as the research object. This paper establishes the finite element model,programms Matlab programs based on superposition of harmonic theory to obtain the fluctuating wind load time-history research about wind-induced vibration response of concentrator. The statistical characteristics and wind vibration coefficient of displacement at key nodes are obtained; the response time-history data and the power spectrum analysis are carried out for some nodes. Results show that concentrator structure happened mainly forced vibration of low frequency parts and slight resonance on the fundamental frequency in extreme wind load;the most unfavorable condition is 90�60�the safe sheltered condition is-90�90�the wind vibration coefficient of overall displacement is 2. 4 in the most unfavorable condition; concentrator structure is in elastic deformation stage under extreme wind load,but solid mirror shell vibrates strongly; finally the security of the mirror remains to be further studied.
- damping /
- dish concentrator /
- elastic deformation /
- finite element method /
- mathematical models

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参考文献(15)

[1]	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);458-464Wang Y G,Li Z N, Gong B, et al. Time-domain analysison wind-induced dynamic: response of heliostat[J]Journal of Vibration Engineering, 2008, 21(5);458-464(in Chinese)
[2]	丁阳,赵奕程大跨度空间钢管析架结构的风振响应和风振控制研究[J]湖南大学学报,2006,33(3);17-21Ding Y, Zhao Y C. Study of wind-induced dynamicresponse and wind vibration controlfor large-span spatiallattice structaure[J]. Journal of Hunan University,2006,33(3):17-21(in Chinese)
[3]	陈建军,邹谊,姜培刚随机参数非线性鞭天线结构的随机风振响应分析[J]机械科学与技术,2005,24(10):1141-1144Chen J J, Zou Y, Jiang P G. Random vibration analysesof nonlinearity whip antenna structaures with uncertainparameters[J]Mechanical Seience and Technology,2005,24(10):1141-1144(in Chinese)
[4]	章子华,王振宇,刘国华风电场脉动风模拟及风机塔架动力响应研究[J]太阳能学报,2011,32(7);992-998Zhang Z H,Wang Z Y, Liu G H. Simulation oflluctauating wind in wind farm and dynamic: response ofwind turbine tower[J]Acaa Energiae Solars Sinic:a,2011,32(7);92998(in Chinese)
[5]	甘进,洪灶明,吴卫国脉动风作用下高耸塔结构风振响应研究[J]华中科技大学学报(城市科学版),2009,26(2);76-79Gan J, Hong Z M,WuWGWind-induced response ofhigh-rise tower sturctaure with lluctauating wind load[J]Journal of Huazhong University of Science andTechnology (Urban science Edition),2009,26(2):76-79(in Chinese)
[6]	黄本才结构抗风分析原理及应用[M]上海:同济大学出版社,2001Huang B C. The principle and application of thestructaural wind resistance analysis[M]Shanghai:Tongji University Press,2001(in Chinese)
[7]	阎石,郑伟简谐波叠加法模拟风谱[J]沈阳建筑大学学报,2005,21(1):1-4Yan S, Zheng W Wind load simulation by superpositionof harmonic[J]Journal of Shenyang JianzhuUniversity, 2005, 21(1):1-4(in Chinese)
[8]	汪旭,黄鹏,顾明上海地区近地台风实测分析[J]振动与冲击,2012,31(20);84-89峨;ng X, Huang P, Gu M. Field measurement of typhooncharacteristic、near ground in Shanghai districta[J]Journal of Vibration and Shock, 2012, 31(20):84-89(in Chinese)
[9]	王莺歌,李正农,宫博定日镜的风压分布与脉动特性[J]自然灾害学报,2007,16(6);187-194Wang Y G, Li Z L, Gong. Distribution and lluctauationcharactaeristicsof wind pressure on heliostat]J]. Journalof Natural Disasters,2007,16(6):187-194(in Chinese)
[10]	Shinozuka M,Jan C M. Digital simulation of randomprocesses and its applications] J]. Sound and Vibration,1972,25(1):111-128
[11]	杜强雷达天线风载特性的数值计算方法及应用研究[D]成都:电子科技大学,2011Du Q. Research and application on numerical method forcharactaeristic computation of wind loads on radarantennas[D]Chengdu:University of Elecaronic: Soienc:eand Technology of China,2011(in Chinese)
[12]	Newmark N M. Amethod for structaure dynamic、[J]Journal of Engineering Mechanics,ASCE,1959,85(3):67-94
[13]	张相庭结构风工程[M]北京:中国建筑工业出版社,2006Zhang X T. Structaural wind engineering[M]Beijing;China Arc:hitecaure&Building Press,2006(in Chinese)
[14]	楼文娟,杨毅,庞振钱刚性模型风洞试验确定大跨屋盖结构风振系数的多阶模态力法[J]空气动力学学报,2005,23(2):183-187Lou WJ, Yang Y, Pang Z L. Determination of windload factaors of long-span roof structaures using rigid modelwind tunnel test[J]. Actaa Aerodynamica Sinica, 2005,23(2):183-187(in Chinese)
[15]	陆峰大跨度平屋面结构的风振响应和风振系数研究[D]杭州:浙江大学,2001Lu F. Study on wind-induced dynamic: response and windload factaor for long-span flat roof structaures[D]Hangzhou;Zhejiang University,2011(in Chinese)