用于桁架在轨装配的单向触发搭接机构建模与仿真  

Modeling and Simulation of Unidirectional Trigger Lapping Mechanism for On-orbit Truss Assembly

作　　者：许焕宾[1] 张敬尧 周玉林[2] 姚建涛[2] 李德勇 李京涛 XU Huanbin;ZHANG Jingyao;ZHOU Yulin;YAO Jiantao;LI Deyong;LI Jingtao(Beijing Institute of Spacecraft System Engineering,Beijing 100094,China;School of Mechanical Engineering,Yanshan University,Qinhuangdao 066004,China;Beijing Satellite Manufacturing Plant,Beijing 100190,China)

机构地区：[1]北京空间飞行器总体设计部,北京100094 [2]燕山大学机械工程学院,秦皇岛066004 [3]北京卫星制造厂有限公司,北京100190

出　　处：《载人航天》2021年第3期379-386,共8页Manned Spaceflight

基　　金：载人航天领域预先研究项目(040102)。

摘　　要：针对桁架结构在轨搭接过程中节点插接脱离共存问题,提出了一种由外部驱动,单向触发,能够实现桁架节点锁紧与解锁功能顺次切换的搭接机构,运用Matlab插值方法对搭接机构进行参数化设计,利用Adams软件对虚拟样机模型进行仿真。结果表明:搭接机构能够在单向驱动触发下实现被导向零件的唯一确定运动轨迹,并完成解锁与锁定状态的顺次切换。研究结果能够为复杂大型桁架结构的搭接机构设计提供一种新的思路。To solve the problem of joint insertion and separation coexistence in the process of truss structure in rail lapping,an external driven lapping mechanism triggered in one direction was proposed,which could realize the sequential switching of truss node locking and unlocking functions.The parametric design of the lapping mechanism was carried out using Matlab interpolation method,and the virtual prototype model was simulated by Adams software.The results showed that the lapping mechanism could realize the joint locking and unlocking functions.Under the trigger of unidirectional drive,the unique determined motion trajectory of the guided part was realized,and the sequential switching of unlocking and locking states was completed.The research results can provide a new design idea for the lap joint mechanism design of complex large truss structure.

关 键 词：桁架结构 在轨装配 单向触发机构 搭接机构 

分 类 号：V476.5[航空宇航科学与技术—飞行器设计]