浏览全部资源
扫码关注微信
中国科学院 国家天文台 北京 100012
收稿日期:2010-06-25,
修回日期:2010-11-10,
网络出版日期:2011-05-26,
纸质出版日期:2011-05-26
移动端阅览
宋立强, 王启明, 郭永卫. 太阳辐照500 m口径球面射电望远镜的温度分布[J]. 光学精密工程, 2011,19(5): 951-958
Song Li-qiang, Wang Qi-ming, Guo Yong-wei. Temperature distribution of FAST under solar radiation[J]. Editorial Office of Optics and Precision Engineering, 2011,19(5): 951-958
宋立强, 王启明, 郭永卫. 太阳辐照500 m口径球面射电望远镜的温度分布[J]. 光学精密工程, 2011,19(5): 951-958 DOI: 10.3788/OPE.20111905.0951.
Song Li-qiang, Wang Qi-ming, Guo Yong-wei. Temperature distribution of FAST under solar radiation[J]. Editorial Office of Optics and Precision Engineering, 2011,19(5): 951-958 DOI: 10.3788/OPE.20111905.0951.
为了掌握500 m口径球面射电望远镜(FAST)在太阳辐照下的温度分布
弱化它的"太阳灶"问题
保护馈源舱内相关仪器
对太阳辐照FAST温度场进行了研究
包括太阳相关参数研究、"太阳灶"问题解析及热流计算、台址地貌对FAST的阳光遮挡及不同工况下的FAST温度分布等。结果表明
FAST馈源舱温度分布不仅与反射面反射率、孔隙率和辐照时间有关
而且与馈源舱防护罩的反射率、材料、焦舱位置、微波入口直径等因素有关。当反射面反射率为0.2、孔隙率为0.4时
馈源舱最高温度为47.56 ℃
时间约在T12:00;反射面最高温度为68.34 ℃时
时间是在T14:00
此时与反射面最低温度为35.03 ℃时的温差为33.31 ℃;文章还计算了形成太阳灶的时间域
最后为FAST的相关设计及使用提出了意见和建议。
To master the temperature distribution and "Solar cooker" of a Five-hundred-meter Aperture Spherical Radio Telescope(FAST) and to protect instruments in a feed cabin under the solar radiation
the temperature distributions of the FAST are studied in detail
which includes sun parameters
"Solar cooker" calculation
heat flows and the temperature distribution of the FAST under different work conditions. The results indicate that the feed cabin temperature distribution is not only relevant to the reflector reflectivity
porosity rate
and the radiation time
but also to the reflectivity of the shield
materials
the diameter of microwave inlet and other factors. The analysis results of work conditions show that the reflector reflectivity is 0.2
porosity rate is 0.4 and the maximum temperature of the feed cabin is 47.56 ℃ at 12∶00.Furthermore
the temperature of reflector surface reaches maximum 68.34℃ at 14∶00
in which the minimum temperature is 35.03 ℃
and the temperature difference of reflector is 33.31 ℃. Moreover
the time domain of solar cookers is simulated.Finally
it gives the comments and suggestions for the design and use of FAST. The research in this paper not only obtains the temperature distribution of the FAST
but also provides references for the design and use of the FAST.
吴明长, 杨世模, 陈志远. 与白光望远镜的光机热一体化分析[J]. 红外与激光工程, 2009, 38(6):1072-1078. WU M CH, YANG S M, CHEN ZH Y. Integrated optical-structural-thermal analysis of the Ha and white light telescope [J]. Infrared and Laser Engineering, 2009,38(6):1072-1078. (in Chinese)[2] 吴明长, 杨世模, 陈志远. 和白光望远镜的热光学试验[J]. 光学 精密工程, 2009,17(7):1520-1527. WU M CH, YANG S M, CHEN ZH Y. Thermo-optical testing of Ha and white telescope [J]. Opt. Precision Eng., 2009,17(7):1520-1527. (in Chinese)[3] 吴清文, 卢泽生, 卢锷, 等. 空间光学遥感器热分析[J]. 光学 精密工程, 2002,10(2):205-208. WU Q W, LU Z S, LU E, et al.. Thermal analysis far a space optical remote sensor [J]. Opt. Precision Eng., 2002,10(2):205-208. (in Chinese)[4] 南仁东. FAST500米口径球面射电望远镜[J]. 中国国家天文, 2009,11:16-23. NAN R D. 500 meter aperture spherical telescope [J]. Chinese National Astronomy, 2009,11:16-23. (in Chinese)[5] 路英杰, 任革学. 大射电望远镜FAST整体变形索网反射面仿真研究[J]. 工程力学, 2007,24(10):165-170. LU Y J, REN G X. Simulation of the cable mesh reflector for the large radio telescope fast[J]. Engineering Mechanics, 2007,24(10):165-170. (in Chinese)[6] 朱丽春. FAST主反射面自动控制系统[J]. 科学技术与工程, 2006,6(13):1890-1895. ZHU L C. The arithmetic control system of active reflector for FAST [J]. Science Technology and Engineering, 2006,6(13):1890-1895. (in Chinese)[7] 金晓飞, 范峰, 沈世钊. 巨型射电望远镜(FAST)反射面支承结构日照温度场效应分析[J]. 土木工程学报, 2008,41(11):71-77. JIN X F, FAN F, SHEN SH Z. Effect of non-uniform temperature field under sunshine on the structure supporting the reflector of a large radio telescope-FAST [J]. China Civil Engineering Journal, 2008,41(11):71-77. (in Chinese)[8] 王绍武. 太阳常数[J]. 气候变化研究进展, 2009,5(1):61-62. WANG S W. SUN Constant [J]. Advances in Clim ate Change Research, 2009,5(1):61-62. (in Chinese)[9] 陈仁升, 康尔泗, 李新. 任意地形实际天气条件下小时入射短波辐射模型[J]. 中国沙漠, 2006,6(5):773-779. CHEN R SH, KANG E S, LI X. Hourly incident solar radiation model under actual weather and terrain conditions: a case study in heihe river basin [J]. Journal of Desert Research, 2006,6(5):773-779. (in Chinese)[10] 王步,华毅杰, 黄鼎业. 大吨位梁太阳辐射温度效应瞬态分析[J]. 结构工程师, 2002,(4):29-33. WANG B, HUA Y J, HUANG D Y. Transient analysis for solar radiation temperature effect on large-tonnage beam [J]. Structural Engineers, 2002,(4):29-33. (in Chinese)
0
浏览量
308
下载量
3
CSCD
关联资源
相关文章
相关作者
相关机构