Rigid-Flexible-Attitude Control Integrated In-Orbit Vibration Analysis Method for Large Satellite Reflector Antennas

Abstract

Large deployable mesh antennas will be used increasingly in the spacecraft. Not only the size of the antenna increases more and more，but also the technical requirement becomes even tighter. The mechanical motions coming from attitude control，orbit control，solar array rotating inevitably result in vibrations of large reflector structure and lead to reducing the electrical performance of the antenna and the quality of the mission. A rigid-flexible-attitude control integrated analysis method is presented. The integrated simulation model consists of disturbance，rigid-flexible coupling dynamic model，attitude control，and antenna vibration effect analysis. Under the typical operating disturbance modes of the satellite，the computations of the vibration responses，the whole antenna pointing and the distortion level of the antenna structure are carried out. The analysis results will support the antenna in-orbit vibration effect analysis，performance index prediction，and vibration transfer mechanism analysis and vibration control measures.

Keywords

satellite / deployable mesh antenna / in-orbit vibration / integrated analysis

References

[1] 宗亚雳, 王伟, 王从思, 等. 型面周期性误差对环形桁架可展开天线电性能的影响及其消除方法 [J]. 电子学报, 2014 , 42 (5) :963-970
Zong Y L,Wang W,Wang C S,et al. Effects of periodic geometric error of astromesh reflector surface on radiation pattern and its elimination method[J]. Acta Electronica Sinica 2014 , 42 (5) :963-970
[2] 王从思, 保宏, 仇原鹰,等. 星载智能天线结构的机电热耦合优化分析[J]. 电波科学学报, 2008, 23(5):991-996.
Wang C S,Bao H,Qiu Y Y,et al.Coupled structural-electromagnetic-thermal optimization design and analysis of intelligent antenna structures in satellites[J].Chinese Journal of Radio Science, 2008, 23(5):991-996.
[3] 王从思, 康明魁, 王伟,等. 结构变形对相控阵天线电性能的影响分析[J]. 系统工程与电子技术, 2013, 35(8):1644-1649.
Wang C S,Kang M K,Wang W,et al.Analysis of electrical performances of phased array antennas with structural deformations[J].Systems Engineering and Electronics,2013, 35(8):1644-1649.
[4] Thomson M W. AstroMesh deployable reflectors for Ku-and Ka-band commercial satellites [C]//20th AIAA International Communication Satellite Systems Conference and Exhibit. [S. l.]：AIAA，2002.
[5] Miyasaka A，Homma M，Tsujigata A，et al. Design and ground verification of large deployable reflector [C]//42th AIAA/ASME/ ASCE/AHS/ASC Structures，Structural Dynamic and Meterials Conference and Exhibit. [S. l.]：AIAA，2001.
[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] Shi H，Yang B，Thomson M，et al. A nonlinear dynamic model and free vibration analysis of deployable mesh reflectors [C]//52th AIAA/ASME/ASCE/AHS/ASC Structural Dynamic and Meterials Conference and Exhibit. [S. l.]：AIAA，2011.
[8] Hill J,Wang K W,Fang H. Advances of surface control methodologies for flexible space reflectors [J]. Journal of Spacecraft and Rockets,2013,50(4):816-828