摘要
面向大尺寸空间伸展臂在轨高精度维持需求,提出了综合铰链间隙与杆长偏差的多因素装配精度分析方法。基于无质量杆原理建立了转动副间隙等效模型,通过Denavit-Hartenberg(D-H)理论建立了含杆长偏差的伸展臂运动模型,采用蒙特卡洛法进行多因素误差模拟,得到了满足装配精度要求的铰链间隙配准与杆长偏差范围。试验结果表明:所提方法有效保证了伸展臂的展收可动性与装配精度。
In response to the high-precision maintenance requirements for large-sized space deployable masts in orbit,amulti-factor assembly precision analysis method considering hinge clearance and rod length deviation is proposed.An equivalent model for rotational pair clearance based on the massless rod principle is established,and a deployable mast motion model incorporating rod length deviation is constructed based on the Denavit-Hartenberg(D-H)theory.The Monte Carlo method is used for the multi-factor error simulations,yielding the ranges of hinge clearance adjustment and rod length deviation that meet the assembly accuracy requirements.Experimental results indicate that the proposed method effectively ensures the deploy ability and assembly precision of the deployable mast.
作者
李成伟
董自瑞
季红侠
马赫
LI Chengwei;DONG Zirui;JI Hongxia;MA He(College of Astronautics,Nanjing University of Aeronautics and Astronautics,Nanjing 211100,Jiangsu,China;Shanghai Institute of Spacecraft Equipment,Shanghai 201109,China)
出处
《上海航天(中英文)》
2025年第3期88-94,共7页
Aerospace Shanghai(Chinese&English)
基金
国家自然科学基金资助项目(52275113)。
关键词
空间铰接式伸展臂
装配精度
间隙分析
展开测试
space articulated deployable mast
assembly accuracy
clearance analysis
deployment test
