A two-way flat plate folding unit mechanism and motion process analysis

  • Bo CHEN ,
  • Luyao GUO ,
  • Baozhu LIANG ,
  • Ze JIANG ,
  • Ming LI ,
  • Yundou XU ,
  • Yongsheng ZHAO
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  • 1.Laboratory of Parallel Robot and Mechatronic System of Hebei Province,Yanshan University,Qinhuangdao  066004,China
    2.Key Laboratory of Advanced Forging & Stamping Technology and Science,Ministry of Education,Yanshan University,Qinhuangdao  066004,China
    3.Space Structure and Mechanism Technology Laboratory,China Aerospace Science and Technology Group Co. Ltd,Shanghai  201109,China
    4.Aerospace System Engineering Shanghai,Shanghai  201109,China
E-mail: ydxu@ysu.edu.cn

Received date: 2021-11-29

  Revised date: 2022-01-05

  Accepted date: 2022-02-24

  Online published: 2022-03-22

Supported by

National Natural Science Foundation of China(52075467)

Abstract

To meet the planar deployable antenna with larger physical aperture, a new expandable two-way flat plate folding unit mechanism is proposed, and its expansion mode, degree of freedom and kinematic characteristics are analyzed. Firstly, a new configuration of two-way flat plate folding unit mechanism is proposed, and its basic composition and expansion law are briefly described. Secondly, according to the deployment motion characteristics, the mechanism is simplified to a plane mechanism, the degrees of freedom are calculated, and the number and position of drives are determined. Finally, the kinematics model is established by using the closed-loop vector method. The motion characteristics such as deployment trajectory, singular position, rod angle, angular velocity and angular acceleration are analyzed. The analytical solution of the kinematic model is compared with the simulation results to verify the correctness of the kinematic model.

Cite this article

Bo CHEN , Luyao GUO , Baozhu LIANG , Ze JIANG , Ming LI , Yundou XU , Yongsheng ZHAO . A two-way flat plate folding unit mechanism and motion process analysis[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023 , 44(2) : 426720 -426720 . DOI: 10.7527/S1000-6893.2022.26720

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