模块化构架式空间可展天线支撑桁架展开精度测量与分析

doi:10.3901/JME.2020.05.063

机械工程学报 ›› 2020, Vol. 56 ›› Issue (5): 63-71.doi: 10.3901/JME.2020.05.063

• 航天重器——空间大型可展机构与装备专刊 • 上一篇下一篇

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模块化构架式空间可展天线支撑桁架展开精度测量与分析

田大可¹, 刘荣强², 杨谢柳¹, 邓宗全²

1. 沈阳建筑大学机械工程学院沈阳 110168;
2. 哈尔滨工业大学机电工程学院哈尔滨 150001

收稿日期:2019-03-15 修回日期:2019-06-10 出版日期:2020-03-05 发布日期:2020-04-23
通讯作者: 刘荣强(通信作者),男,1965年出生,博士,教授,博士研究生导师。主要研究方向为空间大型可展开机构与控制、大口径可展开天线机构和着陆缓冲机构。E-mail:liurq@hit.edu.cn
作者简介:田大可,男,1981年出生,博士,副教授,硕士研究生导师。主要研究方向为空间可展开机构创新设计理论与方法,航空发动机总体结构及先进技术预先研究。E-mail:tiandake@sjzu.edu.cn
基金资助:
国家自然科学基金重点项目（51835002）、中国博士后科学基金面上项目（2019M661126）和辽宁省自然科学基金指导计划（2019-ZD-0655）资助项目。

Deployment Accuracy Measurement and Analysis of Truss Structure for Modular Space Deployable Truss Antenna

TIAN Dake¹, LIU Rongqiang², YANG Xieliu¹, DENG Zongquan²

1. School of Mechanical Engineering, Shenyang Jianzhu University, Shenyang 110168;
2. School of Mechanical and Electrical Engineering, Harbin Institute of Technology, Harbin 150001

Received:2019-03-15 Revised:2019-06-10 Online:2020-03-05 Published:2020-04-23

摘要/Abstract

摘要： 为研究金属网面式可展天线支撑桁架对反射器表面形面精度的影响，开展模块化构架式空间可展天线支撑桁架展开精度测量试验及分析研究，根据支撑桁架的结构特点，基于机器人学基本理论，建立关键节点空间数学模型，设计悬吊随动式微重力展开试验装置，采用数字近景摄影测量原理，对支撑桁架的展开精度进行测量试验，并从支撑桁架的形面精度、重复展开精度和关键节点误差等3个方面进行分析。试验结果表明：支撑桁架上关键节点的均方根误差（RMSE）值较小，由关键节点构成的曲面其形面精度较高；支撑桁架在多次重复展开试验中，关键节点中最大误差小于1 mm，结构展开的一致性较好；完全展开后，关键节点的实测值与理论值接近，支撑桁架的制造及安装精度较高。提出的测量和分析方法为其他类型金属网面式可展天线支撑桁架展开精度的研究提供了借鉴和参考。

关键词: 空间可展天线, 支撑桁架, 模块, 形面精度, 数字近景摄影测量

Abstract: To study the influence of truss structure for metal mesh deployable antenna on the surface accuracy of reflector, experiment and analysis on deployment accuracy measurement of truss structure for modular space deployable truss antenna are carried out. According to the structure features of truss structure, key node mathematical model is established based on the basic theory of robotics. Then, suspension following microgravity expansion test device is designed. By using the principle of digital close-range photogrammetry, the deployment accuracy of truss structure is measured and tested. Meanwhile, the surface accuracy, repeated deployment accuracy and key node error of truss structure are analyzed. The results show that the root mean square error (RMSE) of the key nodes on the truss structure is small, and the surface formed by the key nodes has a high surface accuracy; the maximum error of the key nodes is less than 1 mm in repeated deployment tests, and the consistency of the structure deployment is good; after fully deployment, the measured values of the key nodes are close to the theoretical values, and the manufacturing and installation of the truss structure are good. The methods of measurement and analysis presented provide a reference for the research of deployment accuracy of other types of metal mesh deployable antenna truss structure.

Key words: space deployable antenna, truss structure, module, surface accuracy, digital close-range photogrammetry

中图分类号:

V443

田大可, 刘荣强, 杨谢柳, 邓宗全. 模块化构架式空间可展天线支撑桁架展开精度测量与分析[J]. 机械工程学报, 2020, 56(5): 63-71.

TIAN Dake, LIU Rongqiang, YANG Xieliu, DENG Zongquan. Deployment Accuracy Measurement and Analysis of Truss Structure for Modular Space Deployable Truss Antenna[J]. Journal of Mechanical Engineering, 2020, 56(5): 63-71.

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模块化构架式空间可展天线支撑桁架展开精度测量与分析

Deployment Accuracy Measurement and Analysis of Truss Structure for Modular Space Deployable Truss Antenna

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