Primary Mirror Interface Design for On-orbit assembly of Space Telescopes
Focusing on the increasing demand for on-orbit assembly of large space telescopes and the critical technical issues in the design of their primary mirror interfaces,a design based on a cylindri-cal cam mechanism for a docking interface locking mechanism was adopted in this study.Through the design and verification of key components of the mechanism,a tolerance analysis of the telescope module docking and locking process was conducted,and the bearing capacity of the mechanism was analyzed and verified using ANSYS software.Addressing the issue of excessive acceleration of the driven part in the cylindrical cam locking mechanism,which made it unsuitable for direct use in tel-escope module locking mechanisms,the curve groove of the cylindrical cam locking mechanism was optimized using the unified function method.A design scheme based on an improved cosine uniform motion law for the curve groove was determined,and the superiority of this scheme was verified.Fi-nally,a ground-based simulation assembly experiment of the telescope's primary mirror was conduc-ted using a 7-DOF robotic arm system,which verified the effectiveness of the designed interface's docking,locking,and release functions.
space telescopeinterface designlocking mechanismon-orbit assembly
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