Research on design of adaptive connecting mechanisms for the cable-net and panels of FAST

doi:10.1088/1674-4527/17/9/99

	Research on design of adaptive connecting mechanisms for the cable-net and panels of FAST
	Jiang, Peng 1; Li, Qing-Wei ; Nan, Ren-Dong
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2017-09-01
卷号	17 期号:9 页码:10
关键词	telescopes Astronomical Instrumentation, Methods and Techniques methods: analytical methods: data analysis
ISSN号	1674-4527
DOI	10.1088/1674-4527/17/9/99
通讯作者	Jiang, Peng(pjiang@nao.cas.cn)
英文摘要	The 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.
WOS关键词	TELESCOPE
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
WOS记录号	WOS:000412778300011
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/22796]
专题	中国科学院紫金山天文台
通讯作者	Jiang, Peng
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Key Lab Radio Astron, Beijing 100012, Peoples R China
推荐引用方式 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.