大口径望远镜结构的有限元分析 |
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引用本文: | 张林波,任戈,陈洪斌.大口径望远镜结构的有限元分析[J].光学技术,2003,29(5):565-567. |
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作者姓名: | 张林波 任戈 陈洪斌 |
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作者单位: | 中国科学院光电技术研究所,成都,610209 |
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基金项目: | 国家863高技术项目资助。 |
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摘 要: | 望远镜是动态光电跟踪探测系统中的关键部件之一,特别是大口径光学系统,不仅要求主望远镜的稳定性高,还要尽可能地减少结构质量。根据1.3m大口径望远镜的结构设计方案,利用大型有限元结构分析软件I DEAS,采用板壳和质量单元描述结构主体,建立了较为精确的结构分析模型,求得了望远镜在不同俯仰角位置时的主、次镜位置变化,为整个望远镜的结构设计提供了可靠的依据。
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关 键 词: | 望远镜 有限元模型 结构分析 |
文章编号: | 1002-1582(2003)05-0565-03 |
修稿时间: | 2002年12月10 |
Finite element analysis for the large-aperture telescope |
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Abstract: | Telescope is one of the most important components of dynamic photoelectric acqui sition and tracking system, especially for the large-aperture system, which sho u ld have not only high stability but also light self-weight. Finite element mode l for the 1.3 meter large-aperture telescope is built by shell and mass elements , according to the design proposal and using large-scale finite element analysis software I-DEAS. Deviation results of primary and secondary mirror with differe n t pitching angles are calculated, which provide reliable datum for designing the whole telescope. |
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Keywords: | altitude axis finite element model structural analysis |
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