Bibliographic Details
| Title: |
A Conceptual Design of Deployable Antenna Mechanisms |
| Authors: |
Hyeongseok Kang, Bohyun Hwang, Sooyoung Kim, Hyeonseok Lee, Kyungrae Koo, Seonggun Joe, Byungkyu Kim |
| Source: |
Aerospace, Vol 11, Iss 11, p 938 (2024) |
| Publisher Information: |
MDPI AG, 2024. |
| Publication Year: |
2024 |
| Collection: |
LCC:Motor vehicles. Aeronautics. Astronautics |
| Subject Terms: |
deployable mechanisms, large-scale antenna, reconfigurable space mechanisms, conical frustum configuration, pantograph mechanism, Motor vehicles. Aeronautics. Astronautics, TL1-4050 |
| More Details: |
Over the last decade, large-scale antennas have been developed to enhance precise blue force tracking and improve situational awareness. In general, such large-scale antennas, ranging from 1 to up to 10 m, need a specific mechanism that can reconfigure their shapes and morphologies, resulting in stowing and deploying upon the given environment. In parallel, it must be noted that such deployable mechanisms should accommodate a large aperture diameter while ensuring they are lightweight, robust, and structurally rigid to avoid undesired deformations due to the deployment. With these in mind, this work presents a large frustum-shaped deployable antenna mechanism with a large aperture diameter of 7.5 m. The deployable mechanism is composed of hierarchical bayes the radial direction at 30° intervals. Twelve bayes in total identify the overall morphology of the deployable antenna, which features a dodecagon. Specifically, the bay is composed of three linkage structures: a six-bar linkage mechanism, a V-folding mechanism, and a single pantograph mechanism. As a result of static and dynamic simulations, it is identified that the mechanism achieves an area-to-mass ratio of 5.003 m2/kg and a safety factor of 323.8 upon deployment. Conclusively, this work demonstrates a strong potential of the deployable antenna mechanism, providing high rigidity and large aperture diameter while ensuring high stability in space environments. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2226-4310 |
| Relation: |
https://www.mdpi.com/2226-4310/11/11/938; https://doaj.org/toc/2226-4310 |
| DOI: |
10.3390/aerospace11110938 |
| Access URL: |
https://doaj.org/article/d418822042d84fe191eacc0c988c8521 |
| Accession Number: |
edsdoj.418822042d84fe191eacc0c988c8521 |
| Database: |
Directory of Open Access Journals |
