摘要
采用整体索网作为大射电望远镜(FAST)反射面的支承结构,通过对四边形、凯威特型和短程线型三种整体索网方案的研究、对比,认为短程线型网格是一种合理的较优方案;分别对提出的刚性、半刚性和柔性三种子结构方案进行分析研究,论证该刚性方案的可行性,初步论证半刚性方案的可行性,同时对柔性方案提出改进建议。
A cable-net structure was employed to support the reflector of the Five-hundred-meter Aperture Spherical Telescope （FAST）. Based on the analysis of and the comparison between the quadrilateral, the Kiewitt and the geodesic mesh-types, the geodesic mesh proves to give the best performance. Three types of sub-structures, namely the rigid, the semi-rigid and the flexible, are also investigated. The feasibility of the rigid type is verified, and the feasibility of the semi-rigid type is preliminarily verified. Suggestions are given on how to improve the performance of the flexible sub-structure.
出处
《土木工程学报》
EI
CSCD
北大核心
2005年第12期18-23,共6页
China Civil Engineering Journal
基金
中国科学院知识创新工程重要方向项目(FAST关键技术优化研究)
