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题名: Studying solutions for the fatigue of the FAST cable-net structure caused by the process of changing shape
作者: Jiang, Peng1, 2; Nan, Ren-Dong1, 2; Qian, Lei1, 2; Yue, You-Ling1, 2
刊名: RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期: 2015-10-01
卷号: 15, 期号:10, 页码:1758-1772
关键词: five-hundred-meter aperture spherical radio telescope ; fatigue resistance ; astronomical techniques and approaches ; cable-net structure ; finite element
DOI: 10.1088/1674-4527/15/10/013
文章类型: Article
英文摘要: The Five-hundred-meter Aperture Spherical Radio Telescope (FAST) is supported by a cable-net structure, whose change in shape leads to a stress range of approximately 500 MPa. This stress range is more than twice the standard recommended value. The cable-net structure is thus the most critical and fragile part of the FAST reflector system. In this study, we first search for a more appropriate deformation strategy that reduces the stress amplitude generated by the process of changing shape. Second, we roughly estimate the tracking trajectory of the telescope during its service life, and conduct an extensive numerical investigation to assess the requirements for fatigue resistance. Finally, we develop a new type of steel cable system that satisfies the cable requirements for construction of FAST.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
收录类别: SCI
语种: 英语
WOS记录号: WOS:000362825700013
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/16026
Appears in Collections:南极天文中心_期刊论文

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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
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