Journal of Astronautics ›› 2021, Vol. 42 ›› Issue (12): 1493-1501.doi: 10.3873/j.issn.1000-1328.2021.12.002

Previous Articles     Next Articles

Design and Assembly Performance Analysis of Large Space Structure Assembly Interface

SHI Chuang, GUO Hong wei, WANG Hong yang, TAO Lei, LIU Rong qiang, DENG Zong quan   

  1. State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, Harbin 150001, China
  • Received:2020-11-11 Revised:2021-05-25 Online:2021-12-15 Published:2021-12-15

Abstract: To meet the needs of on orbit assembly of super large (kilometer level) space structures, a brand new assembly interface for large space structures is designed and its assembly performance is analyzed in detail. Firstly, a pure mechanical double lock assembly interface is designed in detail. Secondly, the interface kinematics model is established to analyze the tolerance performance of the assembly interface. The results show that the  X direction tolerance is 14.25 mm, the  Z direction tolerance is 15.84 mm, the angular tolerances around the X, Y and Z axes are 5.65°, 5.51°and 5.34°respectively. Finally, the docking interface is simulated by ADAMS to verify the correctness of the tolerance analysis. The nonlinear relationships among the contact force, the static friction coefficient, the thrust of the manipulator and the impact cone angle are obtained. The results lay a foundation for the design of a space docking mechanism.

Key words: On orbit assembly, Assembly interface, Structure design, Kinematics, Tolerance performance

CLC Number: