中国科学院紫金山天文台机构知识库
Advanced  
PMO OpenIR  > 毫米波和亚毫米波技术实验室  > 期刊论文
题名: Hybrid optimization methodology of variable densities mesh model for the axial supporting design of wide-field survey telescope
作者: Wang HaiRen(王海仁)1, 2; Lou Zheng(娄铮)1, 2; Qian Yuan(钱元)1, 2; Zheng XianZhong(郑宪忠)1, 2; Zuo YingXi(左营喜)1, 2
刊名: OPTICAL ENGINEERING
出版日期: 2016-03-01
卷号: 55, 期号:3
关键词: hybrid optimization methodology ; variable densities mesh model ; axial support optimization ; primary mirror ; zero-order optimization method ; first-order optimization method
DOI: 10.1117/1.OE.55.3.035105
文章类型: Article
英文摘要: The optimization of a primary mirror support system is one of the most critical problems in the design of large telescopes. Here, we propose a hybrid optimization methodology of variable densities mesh model (HOMVDMM) for the axial supporting design, which has three key steps: (1) creating a variable densities mesh model, which will partition the mirror into several sparse mesh areas and several dense mesh areas; (2) global optimization based on the zero-order optimization method for the support of primary mirror with a large tolerance; (3) based on the optimization results of the second step, further optimization with first-order optimization method in dense mesh areas by a small tolerance. HOMVDMM exploits the complementary merits of both the zero-and first-order optimizations, with the former in global scale and the latter in small scale. As an application, the axial support of the primary mirror of the 2.5-m wide-field survey telescope (WFST) is optimized by HOMVDMM. These three designs are obtained via a comparative study of different supporting points including 27 supporting points, 39 supporting points, and 54 supporting points. Their residual half-path length errors are 28.78, 9.32, and 5.29 nm. The latter two designs both meet the specification of WFST. In each of the three designs, a global optimization value with high accuracy will be obtained in an hour on an ordinary PC. As the results suggest, the overall performance of HOMVDMM is superior to the first-order optimization method as well as the zero-order optimization method. (C) 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
关键词[WOS]: PRIMARY MIRROR ; ACTIVE OPTICS ; DEFLECTION
收录类别: SCI
项目资助者: National Natural Science Foundation of China(10921063 ; Natural Science Foundation of Jiangsu Province(BK20141042) ; 11190014 ; 11403109 ; 11373073)
语种: 英语
WOS记录号: WOS:000372718100017
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/16177
Appears in Collections:毫米波和亚毫米波技术实验室_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
2016074.pdf(6331KB)----限制开放View 联系获取全文

作者单位: 1.Chinese Acad Sci, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Wang, Hairen]'s Articles
[Lou, Zheng]'s Articles
[Qian, Yuan]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Wang, Hairen]‘s Articles
[Lou, Zheng]‘s Articles
[Qian, Yuan]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: 2016074.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院紫金山天文台 - Feedback
Powered by CSpace