上海航天（中英文）2025，Vol.42Issue(3)：42-51,10.DOI:10.19328/j.cnki.2096-8655.2025.03.006
大型星载抛物柱面可展天线支撑机构设计与动力学特性分析
Design and Dynamic Characteristic Analysis of a Support Mechanism for Large Parabolic Cylindrical Spaceborne Deployable Antennas
摘要
Abstract
In response to the development requirements of large-aperture,lightweight,and high-precision spaceborne deployable antennas,a support mechanism for large parabolic cylindrical spaceborne deployable antennas with a deployed aperture of 11 m×52 m is proposed and designed.Based on the characteristics of the mechanism composition,a spatial geometric model and a finite element model are established.A modal analysis is conducted on the mechanism by means of the Lanczos modal analysis theory,and the effects of the member size and material on the natural frequency are systematically evaluated.Additionally,the performance of the deployable antenna support mechanism is quantitatively evaluated by analyzing and calculating the mass-to-area ratio and f-number.The results indicate that the member size and support material are key factors affecting the dynamic characteristics of the antenna support mechanism.While ensuring the structural stiffness,the mechanism achieves lightweight design and possesses high pointing accuracy.关键词
抛物柱面天线/支撑机构设计/动力学分析/固有频率/参数敏感度分析Key words
parabolic cylindrical antenna/support mechanism design/dynamic analysis/natural frequency/parameter sensitivity analysis分类
航空航天引用本文复制引用
傅鳞涵,陈晓峰,陈金宝,陈传志,郑光..大型星载抛物柱面可展天线支撑机构设计与动力学特性分析[J].上海航天（中英文）,2025,42(3):42-51,10.基金项目
国家自然科学基金资助项目(52275113) （52275113）
上海航天科技创新基金资助项目(SAST2021-017) （SAST2021-017）
