| 二氧化碳探测仪典型透镜支撑结构的设计及分析(英文) |
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| 引用本文： | 梁彪,刘伟.二氧化碳探测仪典型透镜支撑结构的设计及分析(英文)[J].中国光学与应用光学文摘,2011(4). |
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| 作者姓名： | 梁彪 刘伟 |
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| 作者单位： | 中国科学院长春光学精密机械与物理研究所;中国科学院研究生院; |
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| 基金项目： | 国家863高技术研究发展计划资助项目(No.2010AA1221091001) |
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| 摘 要： | 为了降低外界载荷和温度变化对二氧化碳探测仪光学系统透镜面形及共轴的影响,根据系统的特点和技术要求,对其典型透镜的支撑结构进行了研究,设计了一种径向挠性支撑结构并建立了3D实体模型。运用工程CAD分析软件,采用非线性有限元分析方法对其进行了动静刚度特性和热特性仿真分析,验证了支撑结构设计的合理性。分析结果表明,透镜结构组件的一阶固有频率为1 301 Hz;利用面型拟合,得到了各工况下镜面面形误差值为PV≤λ/10,RMS≤λ/50,偏转误差≤1″。该径向支撑结构能很好地保持透镜共轴精度,减小了温度变化对镜面变形的影响,各项结果满足设计要求,证明了结构设计的合理性。
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| 关 键 词： | 二氧化碳探测仪 径向支撑 结构设计 有限元分析 |
Design and analysis of support structure for typical lens of carbon dioxide detector |
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| LIANG Biao,LIU Wei.Design and analysis of support structure for typical lens of carbon dioxide detector[J].Chinese Optics and Applied Optics Abstracts,2011(4). |
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| Authors: | LIANG Biao LIU Wei |
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| Institution: | LIANG Biao1,2,LIU Wei1(1.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China,2.Graduate University of Chinese Academy of Sciences,Beijing 100039,China) |
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| Abstract: | To decrease the influence of external loads and temperature changes on the surface deformation and alignment of a lens,a typical lens support structure was investigated based on the characteristics and technical requirements of carbon dioxide detectors for optical systems and specifications.A radial support structure was proposed and its 3D model was established.In order to verify the reasonability of the structure,the dynamic and static rigidities as well as thermal characteristics were analyzed by using a... |
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| Keywords: | carbon dioxide detector radial support structure design finite element analysis |
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