| Thermal control analysis of a primary mirror for large-aperture telescope | |
| Tan, Yufeng1,2; Wang, Jihong1; Ren, Ge1; Xie, Zongliang1,2; He, Bi1,2 | |
| 2017 | |
| 发表期刊 | Journal of the Korean Physical Society
 |
| ISSN | 0374-4884 |
| 卷号 | 71期号:1页码:28-36 |
| 摘要 | Extraneous thermal loads on the primary mirror of a large-aperture telescope directly influence the optical performance of the telescope through temperature gradients within the mirror and thermal boundary layer at the face sheet. In this paper, we propose a new thermal control system consisting of a flushing and sucking system for eliminating the excessive heat of a primary mirror. First, a 2.8 m-aperture lightweighted primary mirror is fabricated. Second, a thermo-optic analysis using finite element analysis is conducted in natural and forced convection. Finally, the optical performance denoted by Zernike polynomials with and without our proposed thermal control system is evaluated and examined. The comparative results reveal that the image quality of the primary mirror in forced convection is significantly enhanced with obvious reduction of optical surface distortion, thereby demonstrating the effectiveness of our proposed thermal control system. |
| 关键词 | Lightweighted primary mirror Thermal control Finite element analysis Image quality |
| 收录类别 | SCI |
| 语种 | 英语 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ioe.ac.cn/handle/181551/8831 |
| 专题 | 光电工程总体研究室（一室） |
| 作者单位 | 1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China 2.Chinese Acad Sci, Key Lab Opt Engn, Chengdu 610209, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tan, Yufeng,Wang, Jihong,Ren, Ge,et al. Thermal control analysis of a primary mirror for large-aperture telescope[J]. Journal of the Korean Physical Society,2017,71(1):28-36. |
| APA | Tan, Yufeng,Wang, Jihong,Ren, Ge,Xie, Zongliang,&He, Bi.(2017).Thermal control analysis of a primary mirror for large-aperture telescope.Journal of the Korean Physical Society,71(1),28-36. |
| MLA | Tan, Yufeng,et al."Thermal control analysis of a primary mirror for large-aperture telescope".Journal of the Korean Physical Society 71.1(2017):28-36. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| 2017-2071.pdf（1437KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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。
修改评论