Semi-Kinematic Coupling Design and Analysis for Giant Steerable Science Mirror Prototype of Thirty Meter Telescope

Author:

Zhao Hongchao1ORCID,Chen Wenduo2ORCID,An Qichang3,Guo Peng3,Yang Fei3

Affiliation:

1. School of Advanced Manufacturing, Shenzhen Campus of Sun Yat-sen University, No. 66, Gongchang Road, Guangming District, Shenzhen 518107, China

2. School of Materials, Shenzhen Campus of Sun Yat-sen University, No. 66, Gongchang Road, Guangming District, Shenzhen 518107, China

3. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

Abstract

The Giant Steerable Science Mirror prototype is being developed to assess the tertiary mirror system of the Thirty Meter Telescope. In this study, a new semi-kinematic coupling design is proposed for the prototype based on three pairs of V-grooves and canoe-like components to allow for high repeatability accuracy under heavy loads. A mathematical model was constructed to estimate the repeatability accuracy using the corresponding measurement results and machining errors. The proposed design was verified by an experiment, and the results were consistent with the mathematical model. Furthermore, the results indicate that the repeatability of the semi-kinematic coupling is sufficient for the requirement.

Funder

National Key R & D Program of China

Shenzhen Science and Technology Program

Publisher

MDPI AG

Reference22 articles.

1. Thirty meter telescope detailed science case: 2015;Skidmore;Res. Astron. Astrophys.,2015

2. Analysis of Normalized Point Source Sensitivity as a Performance Metric for Large Telescopes;Seo;Appl. Opt.,2009

3. High precision machining in TMT (Thirty Meter Telescope) structure manufacturing;Kamikawa;Ground-Based and Airborne Telescopes VIII,2020

4. The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST);Cui;Res. Astron. Astrophys.,2012

5. Instrumental polarisation at the Nasmyth focus of the E-ELT;Ovelar;Astron. Astrophys.,2014

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3