| 四翼梁式次镜支撑结构的研究 |
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| 引用本文： | 王富国,张景旭,杨飞,吴小霞.四翼梁式次镜支撑结构的研究[J].光子学报,2009,38(3):674-676. |
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| 作者姓名： | 王富国 张景旭 杨飞 吴小霞 |
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| 作者单位： | 1. 中国科学院长春光学精密机械与物理研究所,长春,130033;中国科学院研究生院,北京,100049
2. 中国科学院长春光学精密机械与物理研究所,长春,130033 |
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| 基金项目： | 中国科学院三期创新基金 |
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| 摘 要： | 为了优化大型望远镜次镜支撑结构的静力学和动力学性能,采用有限元分析的方法,计算了次镜支座最大变形与次镜支座的偏置角、四翼梁叶片厚度的关系；分析了四翼梁结构的频率与叶片偏置角的关系.分析证明当次镜支座偏置一定角度时能改善结构的静力学性能；当相对的两片叶片从直径线上错开一定的距离,对提高望远镜的谐振频率是十分有利的,在两者之间综合取舍确定了四翼梁的优化形式.分析结果表明,优化后的四翼梁结构的静力学和动力学性能均有提高.
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| 关 键 词： | 光学技术与仪器 次镜支撑 有限元法 优化 Optical technology and apparatus Second mirror support Finite element method Optimization |
| 收稿时间： | 2007-10-12 |
| 修稿时间： | 2007-11-21 |
Crossed-plate Type Support Structure of the Second Mirror |
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| WANG Fu-guo,ZHANG Jing-xu,YANG Fei,WU Xiao-xia.Crossed-plate Type Support Structure of the Second Mirror[J].Acta Photonica Sinica,2009,38(3):674-676. |
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| Authors: | WANG Fu-guo ZHANG Jing-xu YANG Fei WU Xiao-xia |
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| Institution: | 1 Changchun Institute of Optics;Fine Mechanics and Physics;the Chinese Academy of Sciences;Changchun 130033;China;2 Graduate University of Chinese Academy of Sciences;Beijing 100049;China |
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| Abstract: | In order to optimize the second mirror support of the modern telescope's statics and dynamics performance,with the FEM method,the relationship between the second mirror tube max deformation and the second mirror tube offset angles and lamina thickness was calculated.Then the relationship between the crossed-plate type frequency and lamina offset angles was analyzed.The results approve that when the second mirror tube offset certain angles the statics performance can be improved,and when the two relative lam... |
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| Keywords: | Optical technology and apparatus Second mirror support Finite element method Optimization |
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