| 分块式空间望远镜的光机热集成分析 |
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| 引用本文： | 董冰,俞信,张晓芳,王霞. 分块式空间望远镜的光机热集成分析[J]. 红外与激光工程, 2009, 38(2) |
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| 作者姓名： | 董冰 俞信 张晓芳 王霞 |
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| 作者单位： | 北京理工大学光电学院,北京,100081;北京理工大学光电学院,北京,100081;北京理工大学光电学院,北京,100081;北京理工大学光电学院,北京,100081 |
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| 摘 要： | 高分辨率空间望远镜目前通常采用分块可展开主镜.对主镜进行有限元热分析获得的镜面变形数据无法直接输入光学设计软件进行像质评价,需要进行数据转换.传统的以拟合圆域正交Zemike多项式作为光机热集成分析的数据转换接口的方法不适于分析非圆孔径的分块镜.提出了采用二维插值算法进行数据转换,该方法不受光瞳形状和镜面空间频率的限制.用Matlab编制了光机热接口分析软件,分析了不同温度变化对空间望远镜分块镜成像质量的影响.仿真结果表明:热浸泡和径向热梯度对像质影响较小,而轴向热梯度对像质影响较大.
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| 关 键 词： | 光机热集成分析 分块式空间望远镜 二维插值 |
Thermal-structural-optical integrated analysis of segmented space telescope |
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| DONG Bing,YU Xin,ZHANG Xiao-fang,WANG Xia. Thermal-structural-optical integrated analysis of segmented space telescope[J]. Infrared and Laser Engineering, 2009, 38(2) |
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| Authors: | DONG Bing YU Xin ZHANG Xiao-fang WANG Xia |
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| Affiliation: | Department of Optoelectronics;Beijing Institute of Technology;Beijing 100081;China |
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| Abstract: | Segmented deployable primary mirror is commonly used in current high-resolution space telescope.Surface deformation data resulting from finite element thermal analysis cannot be imported to optical design software directly for image quality evaluation,so a data translation tool is needed.The traditional method is to fit circular-area-orthogonal Zernike polynomials as data translation interface,which is invalid for non-circular segmented mirror.Two-dimension interpolation method,which is not limited by pupil... |
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| Keywords: | Thermal-structural-optical integrated analysis Segmented space telescope Two-dimension interpolation |
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