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Performance Comparison between Two Active Support Schemes for 1-m Primary Mirror
Dongsheng Niu; Guomin Wang; Bozhong Gu
2012-07-01
Source PublicationGround-based and Airborne Telescopes IV
Volume8444
Issue8444
PagesVol.8444 50-1-8
Conference Date2012-7-1
Conference PlaceAmsterdam, Netherlands
Funding OrganizationThe International Society for Optical Engineering
PublisherSPIE
Abstract
Active support scheme may decide the deformation of the optical surface figure of the primary mirror. Two active support schemes have been designed for 1-m primary mirror, and the performance of each support scheme is conducted. Finite element analysis (FEA) is employed to analyze the optical surface figures of the primary mirror, and optimizations are carried out by using ANSYS for each support scheme to obtain the locations of the axial support. When the locations are determined, axial support force sensitivities are calculated for the two support schemes in a case that a single axial support has a force error of 0.5N. The correction ability of the active support system for both of support schemes are analyzed when an arbitrary axial support is failure. Several low order Zernike modes are modeled with MATLAB procedure, and active optics corrections are applied to these modes for the two active supports. Thermal deformation of the mirror is also corrected for the two schemes.
KeywordSupport Scheme Active Optics Correction Ability Axial Support
Subject Area主动光学
Document Type会议论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/671
Collection中国科学院南京天文光学技术研究所_会议论文
望远镜工程中心_会议论文
Recommended Citation
GB/T 7714
Dongsheng Niu,Guomin Wang,Bozhong Gu. Performance Comparison between Two Active Support Schemes for 1-m Primary Mirror[C]:SPIE,2012:Vol.8444 50-1-8.
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