强激光与粒子束, 2012, 24 (1): 46, 网络出版: 2012-02-14  

可折叠展开式伞状龙骨聚光器的聚光性能

Concentration performance analysis of deployable umbrella-shaped keel concentrator
作者单位
1 兰州理工大学 有色金属新材料省部共建国家重点实验室, 兰州 730050
2 兰州理工大学 凝聚态物理研究所, 兰州 730050
3 西安航天精密机电研究所, 西安 710100
4 中国空间技术研究院 兰州分院, 兰州 730000
摘要
针对可折叠展开式伞状龙骨聚光器具有自重低、功率高、比冲高、推力适中的特点, 利用ANSYS和ZEMAX软件对功率为100 kW的可折叠展开式伞状龙骨聚光器在太空环境中的聚光性能进行模拟分析。在太阳风及衬底薄膜表面张力的影响下, 伞面最大应力为1.66 MPa, 远小于Kevlar材料及Ti-6Al-4V龙骨材料的阈值强度, 伞面最大形变仅为0.941 mm, 焦斑半径为6.37 cm, 几何聚光比可达5 917, 比标准抛物面仅减小了1.25%。结果表明:将材质轻、抗拉伸强度高的伞状龙骨结构引入可折叠展开式聚光器的设计方案, 在很大程度上抵消了衬底薄膜材料表面张力及太阳风对聚光器工作形态的影响, 可消除褶皱, 提高可折叠展开式伞状龙骨聚光器的结构稳定性及可展开度, 同时证明了伞状龙骨结构及Kevlar材料的选择是合理的。
Abstract
In order to improve the concentration efficiency and eliminate the optical aberration, the umbrella-shaped keel structure has been introduced into the deployable concentrator. The concentration performance of deployable solar paraboloid concentrator with concentration power of 100 kW working in the space environment has been investigated with the software ANSYS and ZEMAX. Under the influence of film tension and solar wind, the maximum stress of umbrella fabric is 1.66 MPa, which is much smaller than the threshold intensity of Kevlar and Ti-6Al-4V keel materials. The maximum deformation of umbrella fabric is 0.941 mm, the radius of the spot size is 6.37 cm, and the geometric concentration ratio can achieve 5 917, only 1.25% lower than the ratio of the standard parabolic concentrator. The results reveal that the influence of film tension and solar wind on the working shape of concentrator can be offset to a large extent by the introduction of the umbrella-shaped keel structure, which could eliminate wrinkles and enhance the deployability and stability of umbrella-shaped keel concentrator. The selected umbrella-shaped keel structure and Kevlar materials are proved to be appropriate.
参考文献

[1] 沈自才.充气展开式结构在航天器中的应用[J].航天器环境工程, 2008, 25(4): 323-329.(Sheng Zicai. Applications for inflatable deployment structures in spacecraft. Spacecraft Environment Engineering, 2008, 25(4): 323-329)

[2] 戴剑锋, 赵沛, 毛根旺, 等.用于太阳能热推进的可折叠展开式伞状龙骨聚光器[J].强激光与粒子束, 2010, 22(10): 2296-2298.(Dai Jianfeng, Zhao Pei, Mao Genwang, et al. Deployable umbrella-shaped keel concentrator used in solar thermal propulsion system. High Power Laser and Particle Beams, 2010, 22(10): 2296-2298)

[3] 姚涛涛, 张玉珠.可展开航天器的充气系统分析[J].国际太空, 2008, 15(1): 32-35.(Yao Taotao, Zhang Yuzhu. Analysis on the inflatable system of deployable circraft. Space International, 2008, 15(1): 32-35)

[4] Dai Jianfeng, Li Xing, Zhao Pei, et al. Flow analysis of solar thermal propulsion system[C]//Proc of 2010 International Conference on Computing, Control and Industrial Engineering. 2010, 1: 243-246.

[5] 王建华, 吴季平, 徐伟.太阳能应用研究进展[J].水电能源科学, 2007, 25(4): 155-158.(Wang Jianhua, Wu Jiping, Xu Wei. Research progress of the application of solar energy. Water Resources and Power, 2007, 25(4): 155-158)

[6] 马宝珊.世界太阳能风能生物能的发展现状和前景[J].黑龙江电力, 1997, 19(6): 380-384.(Ma Baoshan. Development status and propects of world solar wind biomass. Heilongjiang Electric Power, 1997, 19(6): 380-384)

[7] 张纯良, 张振鹏, 魏志明.太阳能火箭发动机聚光器设计方法[J].航空动力学报, 2004, 19(4): 557-561.(Zhang Chunliang, Zhang Zhen-peng, Wei Zhiming. Design of concentrator for solar thermal propulsion. Journal of Aerospace Power, 2004, 19(4): 557-561)

[8] Meinel A B, Meinel M P. Applied solar energy: an introduction[M]. United States: Addison and Wesley Press, 1976: 214-218.

[9] 刘晓峰, 杜星文, 谭惠丰.薄膜充气管展开模拟实验[J].上海航天, 2008, 4(5): 62-64.(Liu Xiaofeng, Du Xingwen, Tan Huifeng. Deployment simulation of inflatable membrane tube. Aerospace Shanghai, 2008, 4(5): 62-64)

[10] 李臻, 史月艳, 王毓琰, 等.具有镜面反射和漫反射的CPC光学分析[J].太阳能学报, 2003, 24(1): 59-63.(Li Zhen, Shi Yueyan, Wang Yuyan, et al. Optical analysis of compound parabolic concentrator. Acta Energlae Solaris Sinica, 2003, 24(1): 59-63)

[11] 戴景民, 刘颖.抛物柱面聚光器焦面能流分布特性研究[J].太阳能学报, 2008, 29(9): 1097-1100.(Dai Jingmin, Liu Ying. The study of flux distribution on focal plane in parabolic-trough concentrators. Acta Energlae Solaris Sinica, 2008, 29(9): 1097-1100)

[12] Jaworke D A, Skowronski T J. Optical efficiency of a refractive secondary concentrator[R]. ALAA- 200-2994, 2000.

[13] 张纯良, 高芳, 张振鹏, 等.太阳能热推进技术的研究进展[J].推进技术, 2004, 25(2): 188-192.(Zhang Chunliang, Gao Fang, Zhang Zhenpeng, et al. Investigation and development on solar thermal propulsion. Journal of Propulsion Technology, 2004, 25(2): 188-192)

[14] 叶占银, 魏奉思, 冯学尚, 等.无震荡、无自由参数格式在三维太阳风流动数值模拟中的应用[J].空间科学学报, 2000, 20(3): 209-215.(Ye Zhanyin, Wei Fengsi, Feng Xueshang, et al. Applications of a non-oscillatory, non-free parameter scheme in three dimensional solar wind flow simulations. Chinese Journal of Space Science, 2000, 20(3): 209-215)

戴剑锋, 付比, 姚晓菊, 戴怡乐, 赵沛, 何成旦. 可折叠展开式伞状龙骨聚光器的聚光性能[J]. 强激光与粒子束, 2012, 24(1): 46. Dai Jianfeng, Fu Bi, Yao Xiaoju, Dai Yile, Zhao Pei, He Chengdan. Concentration performance analysis of deployable umbrella-shaped keel concentrator[J]. High Power Laser and Particle Beams, 2012, 24(1): 46.

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