| 望远镜系统的结构设计及有限元分析 |
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| 引用本文： | 秦琴,顾永杰,陶津平. 望远镜系统的结构设计及有限元分析[J]. 光电工程, 2008, 35(6): 130-134 |
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| 作者姓名： | 秦琴 顾永杰 陶津平 |
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| 作者单位： | 上海第二工业大学,电子与电气工程学院,上海,201209;中国科学院,上海技术物理研究所,上海,200083 |
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| 基金项目： | 中国科学院知识创新工程项目 |
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| 摘 要： | 本文对R-C望远镜系统的结构作了深入的研究,完成R-C望远镜系统的结构设计,并对整体结构进行有限元分析.通过模态分析得到总体结构的第一阶频率为183.39Hz,高于系统要求的100Hz,在热分析中得到因温度变化导致主、次镜同轴度的偏差为1.15靘,也小于光学要求值0.01mm.望远镜系统实物的实测结果与仿真结果基本相符,验证了R-C望远镜系统结构设计的合理性.
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| 关 键 词： | R-C望远镜系统 有限元分析 探测仪 |
| 收稿时间： | 2007-09-12 |
Finite Element Analysis of R-C Telescope System |
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| QIN Qin,GU Yong-jie,TAO Jin-ping. Finite Element Analysis of R-C Telescope System[J]. Opto-Electronic Engineering, 2008, 35(6): 130-134 |
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| Authors: | QIN Qin GU Yong-jie TAO Jin-ping |
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| Affiliation: | QIN Qin1,GU Yong-jie1,TAO Jin-ping2 ( 1. Electronics & Electrical Engineering College,Shanghai Second Polytechnic University,Shanghai 201209,China,2. Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,China ) |
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| Abstract: | The structural design of the R-C telescope system is researched. We utilized finite element analysis in the whole structure of R-C telescope system. Finite element analysis results of modal analysis indicate that the first natural frequency of the telescope is 183.39 Hz, which is higher than 100Hz requested by the system. Finite element analysis results of the telescope with temperature load indicate that the coaxial degree of primary-mirror and sub-mirror is 1.15 μm, which is less than 0.01 mm requested by the system. The theoretical results are coincident with experimental ones, which validates the rationality of the R-C telescope’s structure. |
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| Keywords: | R-C telescope system finite element analysis detector |
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