Multi-field coupling analysis and experiments of ground reflector antennas under clear-day solar radiation

被引：0

作者：

Li P. ^{[1
]}

Wang W. ^{[1
]}

Zheng F. ^{[1
]}

Zhou S.-H. ^{[2
]}

Yuan B. ^{[1
]}

机构：

[1] Dept. Electromechanical Engineering, Xidian University

[2] The Northwest China Research Institute of Electronic Equipment

来源：

Yuhang Xuebao/Journal of Astronautics | 2010年 / 31卷 / 07期

关键词：

Clear-day solar radiation; Multi-field coupling; Reflector antennas; Temperature experiment;

D O I：

10.3873/j.issn.1000-1328.2010.07.026

中图分类号：

学科分类号：

摘要：

Thermal-structural deformation caused by clear-day solar radiation will effect the electrical parameters of ground reflector antennas. For this problem, temperature field analysis model is proposed firstly. The temperature and the structure deformation of antenna could be obtained with ANSYS software. Secondly, a temperature experiment has been designed via a 7.3 m reflector antenna. Results of the experiment indicate that, the temperature model is valid. Thirdly, electrical parameters of antenna are calculated by far field patterns formula. With other two formulas of temperature field and structure, the multi-field coupling model of ground reflector antennas is proposed. The model proposed in this paper is applied to a 40 m reflect antenna and the result is meaningful for practical engineering.

引用

页码：1864 / 1869

页数：5

共 15 条

[1]

William T.S., Richard J.B., An approximation of the radiation integral for distorted reflector antennas using surface-error decomposition, IEEE Trans on Antennas and Propagation, 45, 1, pp. 5-10, (1997)

[2]

Sinton S., Rahmat-Samii Y., Random surface error effects on offset cylindrical reflector antennas, IEEE Trans on Antennas Propagation, 51, 6, pp. 1331-1337, (2003)

[3]

Zhang J.-Y., Shi H.-L., Chen Z.-P., Et al., Time domain wind buffeting response of large-diameter antenna electric performances, Chinese Journal of Applied Mechanics, 25, 1, pp. 84-88, (2008)

[4]

Bahadori K., Rahmat-Samii Y., Characterization of effects of periodic and aperiodic surface distortions on membrane reflector antennas, Journal of Electromagnetic Waves and Applications, 53, 9, pp. 2782-2791, (2005)

[5]

Zhu M.-B., Liu M.-Z., Xu H.-Q., The precision of adjustment technique for deployable truss antenna reflector based on orbit thermal environment, Journal of Astronautics, 28, 3, pp. 727-730, (2007)

[6]

Wang C.-S., Duan B.-Y., Qiu Y.-Y., Et al., Large reflector antenna structures oriented integrated mechatronic design and analysis system platform, Journal of Astronautics, 29, 6, pp. 2041-2049, (2008)

[7]

Imbriale W.A., Gama E., Smith K.S., Et al., Thermal considerations for hydroformed reflectors, IEEE Aerospace Conference, (2006)

[8]

(2005)

[9]

(2003)

[10]

(2005)

← 1 2 →