| 1.5m级大口径标准镜面支撑系统的研究 |
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| 引用本文： | 刘永奇,吴金虎,胡明勇,马骥.1.5m级大口径标准镜面支撑系统的研究[J].光学技术,2011,37(4):429-432. |
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| 作者姓名： | 刘永奇 吴金虎 胡明勇 马骥 |
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| 作者单位： | 1. 中国科学院研究生院,北京100049;中国科学院南京天文仪器研制中心,江苏南京210042
2. 南京中科天文仪器有限公司,江苏南京,210042 |
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| 摘 要： | 现阶段科研检测仪器对光学镜面的面形精度要求越来越高.光学镜面的口径越大,自重导致的变形问题越严重.为了保证大口径标准镜在法线水平状态下的面形精度,提出了侧面钢带支撑和杠杆平衡重锤卸荷的组合支撑结构,与传统使用的钢带支撑、水银带支撑方式作了比较,并通过ansys有限元分析软件建立的模型对几种不同侧支撑方法进行了分析比较,...
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| 关 键 词： | 大口径 有限元分析 支撑结构 面形精度 |
Research on support system for 1.5m aperture mirror |
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| LIU Yong-qi
,
WU Jin-hu
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HU Ming-yong
,
MA Ji.Research on support system for 1.5m aperture mirror[J].Optical Technique,2011,37(4):429-432. |
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| Authors: | LIU Yong-qi WU Jin-hu HU Ming-yong MA Ji |
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| Institution: | 1.Graduate School of Chinese Academy of Sciences,Beijing 100039,China) (2.Nanjing Astronomical Instrument Research Center of CAS,Nanjing 210042,Jiangsu,China) (3.CAS Nanjing Astronomical Instrument Co.Ltd,Nanjing 210042,Jiangsu,China) |
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| Abstract: | With the developing of mirror's aperture,the weight of mirror which leads to a variety of mirror deformation is becoming larger.A reasonable support system must be determined to reduce the distortion as much as possible.The scheme gives a support system which consists of the steel strip side support and the back of balance weight support,and compared with other support structures.The PV value and the RMS value of the deformation are calculated to explain the advantage of this system,the problem of large-aperture mirror support is solved. |
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| Keywords: | large-aperture mirror finite element analysis(FEA) support structure surface accuracy |
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