| FAST背架结构选型及优化 |
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| 引用本文： | 钱宏亮,范峰,茆春,沈世钊.FAST背架结构选型及优化[J].哈尔滨工业大学学报,2010,42(4):546-549. |
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| 作者姓名： | 钱宏亮 范峰 茆春 沈世钊 |
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| 作者单位： | 哈尔滨工业大学,哈尔滨工业大学土木工程学院,哈尔滨工业大学 |
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| 基金项目： | 哈尔滨工业大学优秀青年教师培养计划资助项目(HITQNJS.2008.062);中国博士后科学基金资助项目(20080430915) |
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| 摘 要： | 背架结构是巨型射电望远镜(FAST)反射面支承系统中的一个重要组成部分,其性能直接影响整个系统的精度和造价.为了给FAST反射面结构的实际选型提供理论依据,首先针对FAST特殊功能要求,提出了背架结构保形设计方法,然后对所提出的空间网格结构、弦支结构、混合结构等多种背架结构进行了优化,从结构力学性能、加工制作工艺等多方面对其进行比较,结果表明局部双层网格结构具有自重轻、刚度好及加工制作简单的优点.
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| 关 键 词： | 巨型射电望远镜 背架结构 结构选型 |
Form selection and optimization of FAST back-structure |
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| QI AN Hong-liang,FAN Feng,MAO Chun and SHEN Shi-zhao.Form selection and optimization of FAST back-structure[J].Journal of Harbin Institute of Technology,2010,42(4):546-549. |
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| Authors: | QI AN Hong-liang FAN Feng MAO Chun and SHEN Shi-zhao |
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| Affiliation: | Harbin Institute of Technology,, |
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| Abstract: | It is the cable-net-structure and the back-structure that support the Five hundred meters large telescope (FAST). As a connective part between cable net and panel, the back-structure is an important part of the supporting system of the reflectance surface, and its performance directly affects the precision of the FAST and its costs. In this paper, a shape-keeping method for the design of sub-structures is first proposed. Then several kinds of back-structure are provided, with optimized structural parameters. The whole study set up the basis of the structural form selection and the practical design of the FAST . |
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| Keywords: | FAST back-structure structure form selection |
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