A Conceptual Design of Deployable Antenna Mechanisms
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 sto...
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MDPI AG
2024-11-01
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| Series: | Aerospace |
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| Online Access: | https://www.mdpi.com/2226-4310/11/11/938 |
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| author | Hyeongseok Kang Bohyun Hwang Sooyoung Kim Hyeonseok Lee Kyungrae Koo Seonggun Joe Byungkyu Kim |
| author_facet | Hyeongseok Kang Bohyun Hwang Sooyoung Kim Hyeonseok Lee Kyungrae Koo Seonggun Joe Byungkyu Kim |
| author_sort | Hyeongseok Kang |
| collection | DOAJ |
| description | 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 m<sup>2</sup>/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. |
| format | Article |
| id | doaj-art-d418822042d84fe191eacc0c988c8521 |
| institution | OA Journals |
| issn | 2226-4310 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj-art-d418822042d84fe191eacc0c988c85212025-08-20T01:53:48ZengMDPI AGAerospace2226-43102024-11-01111193810.3390/aerospace11110938A Conceptual Design of Deployable Antenna MechanismsHyeongseok Kang0Bohyun Hwang1Sooyoung Kim2Hyeonseok Lee3Kyungrae Koo4Seonggun Joe5Byungkyu Kim6Department of Smart Air Mobility, Korea Aerospace University, Goyang 10540, Republic of KoreaDepartment of Mechanical and Aerospace Engineering, Korea Aerospace University, Goyang 10540, Republic of KoreaDepartment of Mechanical and Aerospace Engineering, Korea Aerospace University, Goyang 10540, Republic of KoreaDepartment of Mechanical and Aerospace Engineering, Korea Aerospace University, Goyang 10540, Republic of KoreaSatellite System Team 1, Hanwha Systems, Yongin 17121, Republic of KoreaDepartment of Autonomous Vehicle Engineering, Korea Aerospace University, Goyang 10540, Republic of KoreaDepartment of Smart Air Mobility, Korea Aerospace University, Goyang 10540, Republic of KoreaOver 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 m<sup>2</sup>/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.https://www.mdpi.com/2226-4310/11/11/938deployable mechanismslarge-scale antennareconfigurable space mechanismsconical frustum configurationpantograph mechanism |
| spellingShingle | Hyeongseok Kang Bohyun Hwang Sooyoung Kim Hyeonseok Lee Kyungrae Koo Seonggun Joe Byungkyu Kim A Conceptual Design of Deployable Antenna Mechanisms Aerospace deployable mechanisms large-scale antenna reconfigurable space mechanisms conical frustum configuration pantograph mechanism |
| title | A Conceptual Design of Deployable Antenna Mechanisms |
| title_full | A Conceptual Design of Deployable Antenna Mechanisms |
| title_fullStr | A Conceptual Design of Deployable Antenna Mechanisms |
| title_full_unstemmed | A Conceptual Design of Deployable Antenna Mechanisms |
| title_short | A Conceptual Design of Deployable Antenna Mechanisms |
| title_sort | conceptual design of deployable antenna mechanisms |
| topic | deployable mechanisms large-scale antenna reconfigurable space mechanisms conical frustum configuration pantograph mechanism |
| url | https://www.mdpi.com/2226-4310/11/11/938 |
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