| 超轻超薄反射镜主动支撑方案优化设计 |
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| 引用本文： | 倪颖,黄启泰,余景池. 超轻超薄反射镜主动支撑方案优化设计[J]. 光电工程, 2008, 35(9): 22-26 |
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| 作者姓名： | 倪颖 黄启泰 余景池 |
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| 作者单位： | 苏州大学现代光学技术研究所,江苏苏州,215006 |
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| 基金项目： | 江苏省高校自然科学基金 |
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| 摘 要： | 针对超薄反射镜径厚比大,自身刚度小,更易受环境变化影响面形精度的问题,本文对一块口径500mm超薄实验镜的主动支撑方案进行了有限元分析,并提出了主动支撑方案.本文包括以下内容:1)利用有限元软件系统建立了500mm超薄镜面的有限元模型;2)利用Zernike多项式几个低阶像差来模拟镜面的制造误差和工作环境变化引起的镜面形变,得到超薄镜面上各点的误差值;3)在分别计算出各个致动器响应函数的基础上,给出了该超薄镜具有最佳主动校正能力的致动器分布的优化方案;4)通过对比不同厚度的超薄镜的主动校正能力,给出了500mm口径超薄镜的最佳厚度.
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| 关 键 词： | 主动光学 超薄反射镜 有限元 Zemike多项式 优化设计 |
| 收稿时间： | 2007-12-25 |
Optimized Design of Active Support of Ultra Thin Mirror |
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| NI Ying,HUANG Qi-tai,YU Jing-chi. Optimized Design of Active Support of Ultra Thin Mirror[J]. Opto-Electronic Engineering, 2008, 35(9): 22-26 |
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| Authors: | NI Ying HUANG Qi-tai YU Jing-chi |
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| Affiliation: | NI Ying,HUANG Qi-tai,YU Jing-chi ( Modern Optical Technology Institute,Soochow University,Suzhou 215006,Jiangsu Province,China ) |
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| Abstract: | Ultra thin mirror has a large diameter-thickness rate, so it will be more deformable because of the change of work surroundings. In this paper, some analysis and computing simulation for active ultra thin mirror surface by using Finite Element Method (FEM) were introduced. An ultra thin mirror with a large ratio was simulated by software patran. The aberrations gotten with the Zernike polynomials several low-orders were used to simulate the surface error after ultra thin mirror fabrication and the deformati... |
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| Keywords: | active optics ultra thin reflector finite element method Zernike polynomial optimized design |
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