• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2023, Vol. 59 ›› Issue (13): 36-48.doi: 10.3901/JME.2023.13.036

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Design and Analysis of Multi-configuration Combined Modular Deployable Antenna Mechanism

TIAN Dake1, GAO Haiming1, JIN Lu2, FAN Xiaodong3, LIU Rongqiang3, GUO Zhenwei1, ZHAO Bingfeng4   

  1. 1. School of Mechanical Engineering, Shenyang Jianzhu University, Shenyang 110168;
    2. School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168;
    3. State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001;
    4. Key Laboratory of Vibration and Control of Aero-Propulsion System Ministry of Education, Northeastern University, Shenyang 110819
  • Received:2022-08-22 Revised:2022-12-08 Online:2023-07-05 Published:2023-08-15

Abstract: A multi-configuration combined modular deployable antenna mechanism is proposed for the urgent development needs of space deployable antenna with large aperture, high stowage rate and high structural utilization. Firstly, the overall scheme of the mechanism is described, and the structure is analyzed in detail from the rules of module combination and the principle of rib unit deploying and stowing, and the degrees of freedom of the mechanism are calculated based on the basic theory of mechanism; secondly, the kinematic models of single module and multi-module are established respectively according to the theory of robotics, and the relationship between the angle of each rib unit is solved by the spatial equal envelope circle method; meanwhile, the numerical simulation software is used to study the change law of the rib unit angle during the linkage of multi-module. The kinematic model of the multi-configuration modular mechanism is verified and analysed. Finally, the key parameters such as structural utilization rate and stowage rate of the single configuration and multi-configuration antennas are compared, and a hexagonal single-module prototype is developed and the unfolding function is tested and verified. The simulation and test results show that the proposed mechanism can realize the change of motion from stowed to unfolded state, and there is no interference and jamming in the unfolding process. At the same time, the proposed new configuration not only retains the characteristics of good versatility and easy expansion of the modular structure, but also has high storage rate and structural utilization rate, and the research results have high reference value and significance for enriching and developing the basic theory of space mechanism and promoting the engineering application of this type of antenna.

Key words: space deployable antenna, combined structure, modular design, kinematic analysis, structural utilization rate

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