Type Synthesis of Ring Truss Deployable Antenna Mechanism Based on Screw Theory

被引：0

作者：

Han B. ^{[1
]}

Xu Y.-D. ^{[1
,2
]}

Han Y.-Y. ^{[3
]}

Yao J.-T. ^{[1
,2
]}

Zhao Y.-S. ^{[1
,2
]}

机构：

[1] Parallel Robot and Mechatronic System Laboratory of Hebei Province, Yanshan University, Qinhuangdao

[2] Key Laboratory of Advanced Forging & Stamping Technology and Science of Ministry of Education, Yanshan University, Qinhuangdao

[3] Department of Mathematics and Computer Science, Hengshui University, Hengshui

来源：

Yuhang Xuebao/Journal of Astronautics | 2019年 / 40卷 / 07期

关键词：

Deployable antenna; Ring truss; Screw theory; Type synthesis;

D O I：

10.3873/j.issn.1000-1328.2019.07.013

中图分类号：

学科分类号：

摘要：

Based on the screw theory, the type synthesis of the ring truss deployable antenna mechanism is studied. Firstly, the constrained synthesis method based on the screw theory is briefly introduced, and the deployment principle of the ring truss deployable antenna mechanism is analyzed. Then, the ring truss mechanism is divided into two parts, the upper ring edge and the lower ring edge, the ring truss mechanism can be obtained by constructing the ring edge mechanisms and connecting the upper and lower ring edges. Furthermore, the prismatic joint (P) ARE used to describe the movement characteristics of each node, the analysis and synthesis of the ring edge mechanisms are carried out by the constraint synthesis method based on the screw theory, 16 kinds of constraint branch mechanisms are obtained, and two kinds of constraint branch mechanisms are selected through analysis and optimization. The ring edge link mechanisms are obtained by combining the constraint branch mechanisms, and four ring truss deployable mechanisms are obtained through different connection combinations. Finally, three-dimensional models are built in Solidworks software for the four kinds of ring truss deployable mechanisms, and the deployable features of the four mechanisms are verified by the movement simulation. The research provides a new idea for the synthesis of the deployable antenna mechanisms, and the ring truss mechanisms obtained have a good application prospect in the field of space deployable antenna. © 2019, Editorial Dept. of JA. All right reserved.

引用

页码：831 / 841

页数：10

共 32 条

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