Structural design and model fabrication of cable-rib tensioned deployable parabolic cylindrical antenna  

作　　者：Shunji ZHANG Baoyan DUAN Shuxin ZHANG Nan WANG 

机构地区：[1]Shaanxi Key Laboratory of Space Solar Power Station System,Xi’an 710071,China [2]School of Electromechanical Engineering,Xidian University,Xi’an 710071,China [3]Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100101 China

出　　处：《Chinese Journal of Aeronautics》2023年第8期229-246,共18页中国航空学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos. 51705388 and 51675398);the Youth Talent Fund of Science and Technology Association of Shaanxi University of China;the Aerospace information Research Institute, Chinese Academy of Sciences for its financial support

摘　　要：Deployable mechanisms with light weight and high storage ratio have received considerable attention for space applications. To meet the requirements of space missions, a parabolic cylindrical deployable antenna based on cable-rib tension structures is proposed and verified by a physical prototype. The parabolic cylindrical antenna adopts simple parallel four-bar mechanisms to construct the basic deployable unit, and the cylindrical direction dimension can be easily extended by modularization, which has obvious advantages in storage ratio and area density. Considering the complexity of the entire antenna structure design, including cable networks and flexible trusses, the form-finding design optimization model of a parabolic cylindrical antenna is established using the force density sensitivity method, and then the kinematics analysis of the deployable mechanism is carried out. Finally, a single-module prototype with a deployable diameter of 4 m × 2 m was designed and fabricated. The results of the ground deployment process test and surface accuracy measurements show that the antenna has good feasibility and practicability.

关 键 词：Form-finding design Kinematic analysis Mechanism design Paraboliccylindrical antenna Principle prototype 

分 类 号：V443.4[航空宇航科学与技术—飞行器设计]