CIOMP OpenIR  > 中科院长春光机所知识产出
Secondary mirror supporting structure for 1.2 m telescope
Zhao, H.-C.; J.-X. Zhang; F. Yang and Q.-C. An
2017
发表期刊Guangxue Jingmi Gongcheng/Optics and Precision Engineering
卷号25期号:10
摘要A reasonable supporting structure between primary mirror and secondary mirror for a 1.2 m telescope was fabricated to meet its requirement for stiffness and the bandwidth of servo system. A four-vane spider effecting on the primary obstruction and secondary mirror stiffness was explored. The key parameters for the four-vane spider were selected by dynamic molding. Then, a finite element model was established in the ANSYS to perform static analysis and modal analysis. Finally, the modal analysis method was used to test the designed support structure. The finite element analysis shows that the designed structure effected by gravity induces about 0.004 2 coma while the telescope points to the horizon, and the first-order modal frequency is about 57.2 Hz. The modal analysis indicates that the first-order resonance frequency is up to 54.1 Hz, which is in agreement with that of finite element analysis. Experimental results and FEA results are compared, and it shows that it is difficult to extract the modal when the vibration magnitude on the vane is smaller and obtained results are little smaller than that of the FEA, in which the maximum relative error is less than 7%. In conclusion, this design is not only a fewer obstruction but also an excellent stiffness, meeting the requirement of telescopes. 2017, Science Press. All right reserved.
收录类别ei
语种中文
文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/59474
专题中科院长春光机所知识产出
推荐引用方式
GB/T 7714
Zhao, H.-C.,J.-X. Zhang,F. Yang and Q.-C. An. Secondary mirror supporting structure for 1.2 m telescope[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2017,25(10).
APA Zhao, H.-C.,J.-X. Zhang,&F. Yang and Q.-C. An.(2017).Secondary mirror supporting structure for 1.2 m telescope.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,25(10).
MLA Zhao, H.-C.,et al."Secondary mirror supporting structure for 1.2 m telescope".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 25.10(2017).
条目包含的文件 下载所有文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Secondary mirror sup(442KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 下载
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhao, H.-C.]的文章
[J.-X. Zhang]的文章
[F. Yang and Q.-C. An]的文章
百度学术
百度学术中相似的文章
[Zhao, H.-C.]的文章
[J.-X. Zhang]的文章
[F. Yang and Q.-C. An]的文章
必应学术
必应学术中相似的文章
[Zhao, H.-C.]的文章
[J.-X. Zhang]的文章
[F. Yang and Q.-C. An]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Secondary mirror supporting structure.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。