伞状膜式反射面的型面设计
|
摘要
针对支撑肋、反射膜面及索构成的伞状空间天线反射面,发展了一种新型、高效的型面精度调整以及形态设计的优化分析方法。首先,通过调整索牵引技术调整反射面形状,设计了索的布置方案,并基于支持向量机代理模型和遗传算法优化了调整索的索力值,将反射面型面误差RMS值减小到0. 6 mm以下;其次,充分考虑肋的变形,采用复位平衡法得到了肋的应力分布,通过应力释放获得肋的初始形状,确保肋变形后为反射面形状保持所需形状。
A novel and efficient method for adjusting accuracy and designing shape has been developed for the reflective surface of umbrella-shaped space antenna consisting of supporting rib,reflective membrane surface and cable. Firstly,in order to adjust the shape of the reflector surface by adjusting the cable traction technology,the layout of the cable is designed,and the cable force value is optimized and adjusted based on the support vector machine( SVM) surrogate model and genetic algorithm( GA),then the reflective surface error of root mean square(RMS) is reduced to less than 0.6 mm. Secondly,considering the deformation of the rib,the stress distribution of the rib is obtained by the reposition balance method. The initial shape of the rib is obtained by stress release,and the deformmation shape of the rib is maintained to the desired shape.
A novel and efficient method for adjusting accuracy and designing shape has been developed for the reflective surface of umbrella-shaped space antenna consisting of supporting rib,reflective membrane surface and cable. Firstly,in order to adjust the shape of the reflector surface by adjusting the cable traction technology,the layout of the cable is designed,and the cable force value is optimized and adjusted based on the support vector machine( SVM) surrogate model and genetic algorithm( GA),then the reflective surface error of root mean square(RMS) is reduced to less than 0.6 mm. Secondly,considering the deformation of the rib,the stress distribution of the rib is obtained by the reposition balance method. The initial shape of the rib is obtained by stress release,and the deformmation shape of the rib is maintained to the desired shape.
引文
[1]Kellermeier H,Vorbrugg H,Pontoppidan K.The MBBunfurlable mesh antenna(UMA)design and development[C]//Proceedings of the 11th Communications Satellite Systems Conference.San Diego,CA,USA:AIAA,1986:417-425
[2]Datashvili L,Baier H,Schimitschek J,et al.High precision large deployable space reflector based on pillow-effect-free technology[C]//Proceedings of the48th AIAA/ASME/ASCE/AHS/ASC Structures,Structural Dynamics,and Materials Conference.Honolulu,Hawaii:AIAA,2007:23-26
[3]Prata A,Rusch W V T,Miller R K.Mesh pillow in deployable front-fed umbrella parabolic reflectors[C]//Proceedings of 1989 Digest on Antennas and Propagation Society International Symposium.San Jose,CA,USA:IEEE,1989:254-257
[4]刘明治,那柏.网状天线的反射面形状精度调整[J].宇航学报,2001,22(6):72-77Liu M Z,Na B.Shape accuracy adjustment of a flexible mesh antenna reflector[J].Journal of Astronautics,2001,22(6):72-77(in Chinese)
[5]赵人杰,王峰斌.径向肋天线反射面精度调整方法的研究[C]//中国电子学会空间电子学年会论文集.杭州:中国电子学会,中国宇航学会,2000:232-237Zhao R J,Wang B F.Research on the precision adjustment method of radial ribbed antenna reflector[C]//China Electronics Institute's Annual Conference on Space Electronics.Hangzhou:Chinese Institute of Electronics,Chinese Society of Astronautics,2000:232-237(in Chinese)
[6]Meguro A,Harada S,Watanabe M.Key technologies for high-accuracy large mesh antenna reflectors[J].Acta Astronautica,2003,53(11):899-908
[7]Prata A,Rusch W V T,Miller R K.Mesh pillowing in deployable offset paraboloidal umbrella reflector antennas[C]//Proceedings of Antennas and Propagation Society Symposium 1991Digest.London,Ontario,Canada:IEEE,1991:662-665
[8]黄志荣,宋燕平.型面可调整反射器结构与调整技术概述[J].空间电子技术,2010,7(3):84-89Huang Z R,Song Y P.A review on the structure and adjustment technology of an adjustable reflector[J].Space Electronic Technology,2010,7(3):84-89(in Chinese)
[9]曹玉岩.大型柔性智能索网结构的形态分析与型面主动调整[D].西安:西安电子科技大学,2012Cao Y Y.Shape analysis and surface active adjustment of large flexible smart cable network structure[D].Xi'an:Xidian University,2012(in Chinese)
[10]夏劲松,关富玲,李刚.考虑面力密度的力法找形和预应力精确确定[J].应用力学学报,2005,22(3):414-418Xia J S,Guan F L,Li G.Force method of surface force density with applications to tensility structures[J].Chinese Journal of Applied Mechanics,2005,22(3):414-418(in Chinese)
[11]武岳,胥传喜.膜结构的形状确定与建筑功能要求[J].工业建筑,2004,34(7):73-77Wu Y,Xu C X.Form-finding and architectural requirements of membrane structure[J].Industrial Construction,2004,34(7):73-77(in Chinese)
[12]齐迎春,金光,许艳军.空间薄膜反射镜面形设计及优化[J].光学精密工程,2007,15(6):818-823Qi Y C,Jin G,Xu Y J.Design and optimization for shape of space membrane mirror[J].Optics and Precision Engineering,2007,15(6):818-823(in Chinese)
[13]Tibert A G,Pellegrino S.Review of form-finding methods for tensegrity structures[J].International Journal of Space Structures,2011,26(3):241-255
[14]穆雪峰.多学科设计优化代理模型技术的研究和应用[D].南京:南京航空航天大学,2004Mu X F.Research and application of multidisciplinary design optimization surrogate model[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2004(in Chinese)
[15]向国齐.支持向量回归机代理模型设计优化及应用研究[D].成都:电子科技大学,2010Xiang G Q.Research and application on metamodel based on support vector regression for engineering optimization problems[D].Chengdu:University of Electronic Science and Technology of China,2010(in Chinese)
[2]Datashvili L,Baier H,Schimitschek J,et al.High precision large deployable space reflector based on pillow-effect-free technology[C]//Proceedings of the48th AIAA/ASME/ASCE/AHS/ASC Structures,Structural Dynamics,and Materials Conference.Honolulu,Hawaii:AIAA,2007:23-26
[3]Prata A,Rusch W V T,Miller R K.Mesh pillow in deployable front-fed umbrella parabolic reflectors[C]//Proceedings of 1989 Digest on Antennas and Propagation Society International Symposium.San Jose,CA,USA:IEEE,1989:254-257
[4]刘明治,那柏.网状天线的反射面形状精度调整[J].宇航学报,2001,22(6):72-77Liu M Z,Na B.Shape accuracy adjustment of a flexible mesh antenna reflector[J].Journal of Astronautics,2001,22(6):72-77(in Chinese)
[5]赵人杰,王峰斌.径向肋天线反射面精度调整方法的研究[C]//中国电子学会空间电子学年会论文集.杭州:中国电子学会,中国宇航学会,2000:232-237Zhao R J,Wang B F.Research on the precision adjustment method of radial ribbed antenna reflector[C]//China Electronics Institute's Annual Conference on Space Electronics.Hangzhou:Chinese Institute of Electronics,Chinese Society of Astronautics,2000:232-237(in Chinese)
[6]Meguro A,Harada S,Watanabe M.Key technologies for high-accuracy large mesh antenna reflectors[J].Acta Astronautica,2003,53(11):899-908
[7]Prata A,Rusch W V T,Miller R K.Mesh pillowing in deployable offset paraboloidal umbrella reflector antennas[C]//Proceedings of Antennas and Propagation Society Symposium 1991Digest.London,Ontario,Canada:IEEE,1991:662-665
[8]黄志荣,宋燕平.型面可调整反射器结构与调整技术概述[J].空间电子技术,2010,7(3):84-89Huang Z R,Song Y P.A review on the structure and adjustment technology of an adjustable reflector[J].Space Electronic Technology,2010,7(3):84-89(in Chinese)
[9]曹玉岩.大型柔性智能索网结构的形态分析与型面主动调整[D].西安:西安电子科技大学,2012Cao Y Y.Shape analysis and surface active adjustment of large flexible smart cable network structure[D].Xi'an:Xidian University,2012(in Chinese)
[10]夏劲松,关富玲,李刚.考虑面力密度的力法找形和预应力精确确定[J].应用力学学报,2005,22(3):414-418Xia J S,Guan F L,Li G.Force method of surface force density with applications to tensility structures[J].Chinese Journal of Applied Mechanics,2005,22(3):414-418(in Chinese)
[11]武岳,胥传喜.膜结构的形状确定与建筑功能要求[J].工业建筑,2004,34(7):73-77Wu Y,Xu C X.Form-finding and architectural requirements of membrane structure[J].Industrial Construction,2004,34(7):73-77(in Chinese)
[12]齐迎春,金光,许艳军.空间薄膜反射镜面形设计及优化[J].光学精密工程,2007,15(6):818-823Qi Y C,Jin G,Xu Y J.Design and optimization for shape of space membrane mirror[J].Optics and Precision Engineering,2007,15(6):818-823(in Chinese)
[13]Tibert A G,Pellegrino S.Review of form-finding methods for tensegrity structures[J].International Journal of Space Structures,2011,26(3):241-255
[14]穆雪峰.多学科设计优化代理模型技术的研究和应用[D].南京:南京航空航天大学,2004Mu X F.Research and application of multidisciplinary design optimization surrogate model[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2004(in Chinese)
[15]向国齐.支持向量回归机代理模型设计优化及应用研究[D].成都:电子科技大学,2010Xiang G Q.Research and application on metamodel based on support vector regression for engineering optimization problems[D].Chengdu:University of Electronic Science and Technology of China,2010(in Chinese)
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |