中国空间科学技术

中国空间科学技术 ›› 2024, Vol. 44 ›› Issue (2): 40-50.doi: 10.16708/j.cnki.1000-758X.2024.0020

• 可展开空间结构专栏 • 上一篇    下一篇

辐射肋式空间可展开天线机构设计与分析

田大可，宋玉群，金路，高海明，刘荣强，赵丙峰   

  1. 1 沈阳建筑大学 机械工程学院，沈阳110168
    2 沈阳建筑大学 土木工程学院，沈阳110168
    3 哈尔滨工业大学 机器人技术与系统全国重点实验室，哈尔滨150001
    4 东北大学 航空动力装备振动及控制教育部重点实验室，沈阳110819
  • 发布日期:2024-04-09 出版日期:2024-04-25

Design and analysis of radiating rib space deployable antenna mechanism

TIAN Dake，SONG Yuqun，JIN Lu，GAO Haiming，LIU Rongqiang，ZHAO Bingfeng   

  1. 1 School of Mechanical Engineering，Shenyang Jianzhu University，Shenyang 110168，China
    2 School of Civil Engineering，Shenyang Jianzhu University，Shenyang 110168，China
    3 State Key Laboratory of Robotics and System，Harbin Institute of Technology，Harbin 150001，China
    4 Key Laboratory of Vibration and Control of AeroPropulsion System,Ministry of Education，Northeastern University，Shenyang 110819，China
  • Online:2024-04-09 Published:2024-04-25

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摘要： 可展开天线机构是网面可展开天线的关键组成部分，对天线展开后结构的稳定性和刚度具有重要影响。针对空间可展开天线大型化、高收纳率、高精度化发展趋势，设计了一种辐射肋式空间可展开天线机构新构型。首先，开展了天线整体结构设计，根据结构组成进行尺寸计算并建立了结构的三维模型；然后，采用数值仿真软件开展了机构运动学仿真研究，并分析了运动的变化规律；最后，建立了有限元模型，开展了结构模态分析。研究结果表明，所提出的机构能够实现由收拢至展开的运动变化，展开过程中机构具有良好的同步性，构件间无干涉，验证了结构方案及原理的正确性和可行性。研究结果对于空间可展开天线基础理论及工程应用等具有较高的参考价值。

关键词: 空间折展机构, 可展开天线, 分叉结构, 机构设计, 运动学分析, 模态分析

Abstract: The deployable antenna mechanism is a key component of the mesh deployable antenna，which has a significant influence on the stability and stiffness of the structure after deployment.A new configuration of radiating rib space deployable antenna mechanism was designed to address the development trend of large scale，high storage rate，and high accuracy of space deployable antennas.Firstly，the overall structural design of the antenna was designed，and a three-dimensional model of the structure was established based on the dimensional calculation of the structural composition.Then，the kinematic simulation study of the mechanism was carried out by using numerical simulation software，and the variation law of the motion was analyzed.Finally，a finite element model was established，and the structural modal analysis was carried out.The results show that the proposed mechanism can realize the motion change from folded state to deployed state，and that the mechanism has good synchronization during the deployment process without interference between the components，which verifies the correctness and feasibility of the structural scheme and principle.The research results can provide a reference for research on the basic theory of a deployable antenna mechanism and related engineering applications.

Key words: space folding mechanism, deployable antenna, bifurcation structure, mechanism design, kinematic analysis, modal analysis