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Research on design of adaptive connecting mechanisms for the cable-net and panels of FAST
Jiang, Peng1; Li, Qing-Wei; Nan, Ren-Dong
2017-09-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume17Issue:9Pages:10
Corresponding AuthorJiang, Peng(pjiang@nao.cas.cn)
AbstractThe reflector system of the Five-hundred-meter Aperture Spherical radio Telescope (FAST) is designed to incorporate 4450 rigid panels supported by a flexible cable-net structure. The shape-changing operation that occurs in the process of observation will lead to a relative displacement between adjacent nodes in the cable-net. In addition, three nodes on a rigid panel are fixed with respect to each other. Thus, adaptive connecting mechanisms between panels and the cable-net are certainly needed. The present work focuses on the following aspects. Firstly, the degrees of freedom of adaptive connecting mechanisms were designed so that we can not only adapt the panel to the deformation of the cable-net, but also restrict the panel to its right place. Secondly, finite element and theoretical analyses were applied to calculate the scope of motion in adaptive connecting mechanisms during the cable-net's shape-changing operation, thus providing input parameters for the design size of the adaptive connecting mechanisms. In addition, the gap size between the panels is also investigated to solve the trade-off between avoiding panel collisions and increasing the observation efficiency of FAST.
Keywordtelescopes Astronomical Instrumentation, Methods and Techniques methods: analytical methods: data analysis
DOI10.1088/1674-4527/17/9/99
WOS KeywordTELESCOPE
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000412778300011
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22797
Collection中国科学院紫金山天文台
Corresponding AuthorJiang, Peng
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Key Lab Radio Astron, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Jiang, Peng,Li, Qing-Wei,Nan, Ren-Dong. Research on design of adaptive connecting mechanisms for the cable-net and panels of FAST[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2017,17(9):10.
APA Jiang, Peng,Li, Qing-Wei,&Nan, Ren-Dong.(2017).Research on design of adaptive connecting mechanisms for the cable-net and panels of FAST.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,17(9),10.
MLA Jiang, Peng,et al."Research on design of adaptive connecting mechanisms for the cable-net and panels of FAST".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 17.9(2017):10.
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