{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,30]],"date-time":"2025-10-30T07:18:50Z","timestamp":1761808730043,"version":"build-2065373602"},"reference-count":40,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2025,8,25]],"date-time":"2025-08-25T00:00:00Z","timestamp":1756080000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"The STU Scientific Research Initiation Grant","award":["NTF23019","NTF19012","2023KTSCX317","6023310005K","2023JJ50099","2024A1515011557"],"award-info":[{"award-number":["NTF23019","NTF19012","2023KTSCX317","6023310005K","2023JJ50099","2024A1515011557"]}]},{"name":"Research Projects of the Department of Education of Guangdong Province","award":["NTF23019","NTF19012","2023KTSCX317","6023310005K","2023JJ50099","2024A1515011557"],"award-info":[{"award-number":["NTF23019","NTF19012","2023KTSCX317","6023310005K","2023JJ50099","2024A1515011557"]}]},{"name":"the Shenzhen Polytechnic University Research Fund","award":["NTF23019","NTF19012","2023KTSCX317","6023310005K","2023JJ50099","2024A1515011557"],"award-info":[{"award-number":["NTF23019","NTF19012","2023KTSCX317","6023310005K","2023JJ50099","2024A1515011557"]}]},{"name":"the Provincial Natural Science Foundation of Hunan","award":["NTF23019","NTF19012","2023KTSCX317","6023310005K","2023JJ50099","2024A1515011557"],"award-info":[{"award-number":["NTF23019","NTF19012","2023KTSCX317","6023310005K","2023JJ50099","2024A1515011557"]}]},{"name":"the Guangdong basic and applied basic research foundation","award":["NTF23019","NTF19012","2023KTSCX317","6023310005K","2023JJ50099","2024A1515011557"],"award-info":[{"award-number":["NTF23019","NTF19012","2023KTSCX317","6023310005K","2023JJ50099","2024A1515011557"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>This paper presents a novel large-span ring deployable perimeter truss for the mesh reflector deployable antennas, which is made up of two parts including a single-mobility driving mechanism and a ring deployable metamorphic mechanism. The mechanism design employs polygon approximation, and each side is treated as a basic unit using a modular design approach. By reasonable assembly, a ring deployable metamorphic mechanism with a small folded state and a large deployed state can be formed. Here, multiple singular positions, the axis of its three revolute joints being parallel and coplanar, are used in the fully deployed state, which forms multiple dead-center positions and changes the constraint conditions. The metamorphic motion is thus achieved, and a stable self-locking state is established that greatly enhances the stability. The paper first introduces the mechanism design and evaluation method; the kinematic and dynamic analysis is then conducted, and the simulation validation is also performed. Moreover, a principle design for cable-net structural setting and connection is illustrated. Finally, with the design of a driving system and the fabrication of a physical prototype, the deployable experiments are carried out, and the results show that the perimeter truss can efficiently act as the mesh reflector deployable antennas.<\/jats:p>","DOI":"10.3390\/sym17091388","type":"journal-article","created":{"date-parts":[[2025,8,26]],"date-time":"2025-08-26T06:25:57Z","timestamp":1756189557000},"page":"1388","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["A Large-Span Ring Deployable Perimeter Truss for the Mesh Reflector Deployable Antenna"],"prefix":"10.3390","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9748-1274","authenticated-orcid":false,"given":"Changqing","family":"Gao","sequence":"first","affiliation":[{"name":"Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China"},{"name":"Shantou Key Laboratory for Intelligent Equipment and Technology, Shantou 515063, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hanlin","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nan","family":"Yang","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3706-4422","authenticated-orcid":false,"given":"Jianan","family":"Guo","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3561-3619","authenticated-orcid":false,"given":"Fei","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Integrated Circuit, Shenzhen Polytechnic University, Shenzhen 518055, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9292-7633","authenticated-orcid":false,"given":"Jingli","family":"Du","sequence":"additional","affiliation":[{"name":"Key Laboratory of Electronic Equipment Structure, Design of Ministry of Education, Xidian University, Xi\u2019an 710071, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,8,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1447","DOI":"10.1007\/s10033-017-0198-x","article-title":"Review of large spacecraft deployable membrane antenna structures","volume":"30","author":"Liu","year":"2017","journal-title":"Chin. 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