• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2022, Vol. 58 ›› Issue (7): 44-52.doi: 10.3901/JME.2022.07.044

• 机器人及机构学 • 上一篇    下一篇

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两级可重复展收立方星伞状天线机构设计与样机验证

张树新, 韩晓童, 于亦奇   

  1. 西安电子科技大学电子装备结构设计教育部重点实验室 西安 710071
  • 收稿日期:2021-04-09 修回日期:2021-07-25 出版日期:2022-05-20 发布日期:2022-05-20
  • 通讯作者: 张树新(通信作者),男,1987年出生,博士,教授,博士研究生导师。主要研究方向为有效载荷技术。E-mail:sxzhang@xidian.edu.cn
  • 作者简介:韩晓童,男,1996年出生,硕士研究生。主要研究方向为机构设计。于亦奇,男,1997年出生,硕士研究生。主要研究方向为机构设计。
  • 基金资助:
    国家自然科学基金资助项目(51705388)。

Two-step Repeatable Deploying and Furling Mechanism Design and Prototype Verification of a Deployable Umbrella Antenna for CubeSat

ZHANG Shuxin, HAN Xiaotong, YU Yiqi   

  1. Key Laboratory of Electronic Equipment Structure Design (Ministry of Education), Xidian University, Xi'an 710071
  • Received:2021-04-09 Revised:2021-07-25 Online:2022-05-20 Published:2022-05-20

摘要: 针对现有RainCube立方星伞状天线展开冲击大、同步性差、难以重复展收的问题,提出了一种两级可重复展收立方星伞状天线展收机构创新方案,实现了对伞状天线主面根肋、尖肋和副面的重复展收。该展收机构由根肋、尖肋、电机、丝杠丝母、拉索、弹簧、扭簧等组成。通过电机与丝杠丝母相结合、拉索与扭簧相结合、拉索与弹簧相结合分别实现对天线主面根肋、尖肋和副面的同步可控展开及收拢。在对天线关键机构部件运动学分析的基础上,完成了天线展开与收拢过程的轨迹仿真。设计并制作了两级可重复展收立方星伞状天线原理样机,通过原理样机试验验证了所提展收机构创新方案的可行性。

关键词: 立方星, 伞状天线, 展收机构, 样机验证

Abstract: In order to solve the problems of large impact, poor synchronization and unrepeatable deployment of the RainCube antenna for CubeSat applications, a two-step repeatable deploying and furling mechanism is proposed for deployable umbrella antennas. With the proposed mechanism, both the repeatable deploying and furling operations on the root ribs, tip ribs and sub-reflector of the umbrella antenna can be easily performed separately. The mechanism is mainly composed of root ribs, tip ribs, motors, lead screws, cables, a helical spring, and torsion springs. Through the combination of lead screws and motors, the combination of cables and torsion springs, the combination of cables and the helical spring, the synchronous repeatable deploying and furling of the root ribs, tip ribs and sub-reflector can be realized, respectively. Based on the kinematics analysis of the key components of the antenna, the simulation of the deploying and furling trajectory is accomplished. An experimental prototype of the deployable umbrella antenna is fabricated. The feasibility and effectiveness of the proposed repeatable deploying and furling mechanism is verified through experiments.

Key words: CubeSat, umbrella antennas, deploying and furling mechanism, prototype verification

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