1.2 m微晶主镜的新型支撑

邵亮; 赵勇志; 明名; 吕天宇; 刘昌华; 王洪浩

doi:10.3788/OPE.20162410.2462

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1.2 m微晶主镜的新型支撑

微纳技术与精密机械 | 更新时间：2020-07-07

- 1.2 m微晶主镜的新型支撑
- Novel support for 1.2 m Zerodur primary mirror
- 光学精密工程 2016年24卷第10期页码：2462-2470
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
- 作者简介：
  
  邵亮(1982-),男,吉林桦甸人,硕士,助理研究员,2006年于中国科学技术大学获得学士学位,2009年于中科院南京天光所获得硕士学位,主要从事大型镜面支撑系统设计和仿真分析工作。E-mail:shaol@ciomp.ac.cn
  [ "赵勇志(1979-),男,山东泰安人,博士,副研究员,2001年于吉林大学获得学士学位,2012年于中国科学院长春光学精密机械与物理研究所获得博士学位,主要从事大型光电经纬仪结构设计。E-mail:zyz0715@sohu.com" ]
- 基金信息：
  
  中国科学院青年创新促进会基金(No.2016198)
- DOI：10.3788/OPE.20162410.2462
  中图分类号： TH751
- 收稿日期：2016-01-03，
  
  录用日期：2016-2-20，
  
  纸质出版日期：2016-10
- 稿件说明：
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邵亮, 赵勇志, 明名, 等. 1.2 m微晶主镜的新型支撑[J]. 光学精密工程, 2016,24(10):2462-2470.

Liang SHAO, Yong-zhi ZHAO, Ming MING, et al. Novel support for 1.2 m Zerodur primary mirror[J]. Optics and precision engineering, 2016, 24(10): 2462-2470.
邵亮, 赵勇志, 明名, 等. 1.2 m微晶主镜的新型支撑[J]. 光学精密工程, 2016,24(10):2462-2470. DOI： 10.3788/OPE.20162410.2462.

Liang SHAO, Yong-zhi ZHAO, Ming MING, et al. Novel support for 1.2 m Zerodur primary mirror[J]. Optics and precision engineering, 2016, 24(10): 2462-2470. DOI： 10.3788/OPE.20162410.2462.

摘要

针对1.2 m微晶主镜，提出了基于6套柔性切向杆机构的侧向支撑与基于18点半柔性Whiffletree机构的轴向支撑相结合的新型主镜支撑方案，用于保证该主镜在较大温差范围以及不同俯仰角度下始终保持良好的面形精度及较高的系统刚度。分析了该机构的工作原理，实验测试了主镜的面形精度及支撑系统的模态。机构分析表明该支撑方式可有效保证主镜定位精度和面形精度，并具有热解耦能力；有限元分析确认系统具有良好的支撑性能；面形精度检测得出主镜光轴垂直面形精度RMS达15.25 nm，光轴水平面形精度RMS为20.75 nm，模态测试则获得主镜支撑系统的一阶固有频率为60.3 Hz。实测结果验证了该新型主镜支撑系统具有良好的面形保持能力及支撑刚度，分析结果与实测结果符合度较好，主镜光轴垂直和水平状态面形精度RMS的相对误差分别为14.0%和17.8%，一阶固有频率相对误差为10.8%。得到的结果验证了有限元建模及分析的可信性，支撑系统设计方案的合理性及相关理论推导的正确性。

Abstract

For a 1.2 m Zerodur primary mirror

an effective primary mirror support system was proposed. A lateral support based on 6 sets of flexible tangent link structures and an axial support based on 18 sets of semi-flexible Whiffletree structures were combined to ensure the primary mirror to maintain good surface figure accuracy and system stiffness at a larger temperature range and different elevation angles. The working principle of the system was analyzed and the surface figure accuracy of the primary mirror and modal of the support were tested. The analysis for system structure indicates that the support system ensures the positioning accuracy and surface figure accuracy of the primary mirror and its thermal decoupling ability is verified by support principle deduction. The finite element analysis (FEA)on the statics distortion and thermal distortion of the mirror surface shows that the system has excellent structural rigidity. The surface figure accuracy tests indicate that the RMS values of mirror optical surface distortion at the optical axis in vertical and horizontal states are 15.25nm and 20.75 nm respectively. Furthermore

the first natural frequency of support system is measured to be 60.3 Hz at modal tests. As comparing FEA simulation results with measurement results.It shows that relative errors of the mirror optical surface distortion are 14.0% and 17.8% separately at different elevation angles

and that of the first natural frequency is 10.8%. Due to the approximate results between simulations and measurements

it demonstrates that the design scheme and principle deduction of primary mirror support system are reasonable

and the FEA modeling is creditable.

关键词

Keywords

references

王建立, 陈涛, 张景旭. 地基高分辨率光电成像望远镜总体需求及技术分析[J]. 光学精密工程, 2008, 16(专辑):1-16.

WANG J L, CHEN T, ZHANG J X. General requirements and key technologies for the ground-based high resolution EO imaging telescope[J]. Opt. Precision Eng., 2008, 16(special):1-16.(in Chinese)

伞晓刚, 孙宁, 卓仁善, 等. 大口径光电经纬仪主反射镜支撑结构设计[J]. 光学精密工程, 2013, 21(12):3111-3117.

SAN X G, SUN N, ZHUO R SH, et al.. Design of supporting structure for primary mirror of large aperture theodolite[J]. Opt. Precision Eng., 2009, 17(1):85-91. (in Chinese)

程景全. 天文望远镜原理和设计[M]. 北京:中国科学技术出版社, 2003. 325-330.

CHENG J Q. Principles of Astronomical Telescope Design[M]. Beijing:China Science & Technology Press, 2003:96-102.

BELY P Y. The Design and Construction of Large Optical Telescopes[M]. Berlin:Springer-Verlag, 2003:202-223.

冯树龙, 张新, 翁志成, 等. 大口径平背形主镜支撑方式的选择[J]. 光学技术, 2004, 30(6):679-681.

FENG SH L, ZHANG X, WENG ZH CH, et al.. Study on support way of large-aperture mirror with flat rear surface[J]. Optical Technique, 2004, 30(6):679-681. (in Chinese)

WILSON R N. Reflecting Telescope Optics Ⅱ, Manufacture, Testing, Alignment, Modern Techniques[M]. Berlin:Springer Press, 1999:264-268.

HANS J K, PETER E, MARTIN S. Mechanical principles of large mirror supports[J]. SPIE, 2010, 7733:77332O.

STEPHEN E K, DAVID C, ROBERT J B. Optical characterization of the beryllium semi-rigid AMSD mirror assembly[J]. SPIE, 2003, 5180:180-187.

CHARLIE A, LARRY G, PAUL R. Technology development for cryogenic deployable telescope structures and mechanisms[J]. SPIE, 2003, 5179:182-193.

PAUL R Y. Opto-Mechanical System Design, 3rd Edition[M]. Boca Raton:CRC Press, 2006:471-474.

邵亮, 吴小霞, 杨飞, 等. SiC轻量化主镜液压whiffletree支撑系统的改进[J]. 红外与激光工程, 2014, 43(11):3820-3824.

SHAO L, WU X X, YANG F, et al.. Progress on the hydraulic whiffletree support system for SiC lightweight mirror[J].Infrared and Laser Engineering, 2014, 43(11):3820-3824. (in Chinese)

吴小霞, 李剑锋, 宋淑梅, 等. 4m SiC轻量化主镜的主动支撑系统[J]. 光学精密工程, 2014, 22(9):2452-2457.

WU X X, LI J F, SONG SH M, et al.. Active support system for 4m SiC lightweight primary mirror[J]. Opt. Precision Eng., 2014, 22(9):2452-2457. (in Chinese)

DOUGLAS R N, VICTOR K, JOHN A, et al.. Active tangent link system for transverse support of large thin meniscus mirrors[J]. SPIE. 2007, 6665:66650F.

杨德华, 向伟玮. 摆臂式三点光学镜面支撑系统的研究[J]. 光学技术, 2005, 31(4):580-585.

YANG D H, XIANG W W. Study on three-swing-jib support system for optics mirror[J]. Optical Technique, 2005,31(4):580-585. (in Chinese)

邵亮, 杨飞, 王富国,等. 1.2 m轻量化SiC主镜支撑系统优化设计[J]. 中国光学, 2012, 5(3):229-234.

SHAO L, YANG F, WANG F G, et al.. Design and optimization of supporting system for 1.2 m lightweight SiC primary mirror[J]. Chinese Optics, 2012,5(3):229-234. (in Chinese)

邵亮, 吴小霞, 陈宝刚, 等. SiC轻量化主镜的被动支撑系统[J]. 光学精密工程, 2015, 23(5):1380-1386.

SHAO L, WU X X, CHEN B G, et al.. Passive support system of light-weighted SiC primary mirror[J]. Opt. Precision Eng., 2015, 23(5):1380-1386. (in Chinese)

杨德华, 徐灵哲, 徐欣圻. 大型光学天文望远镜风载作用分析[J]. 光学技术, 2009, 35(3):342-346.

YANG D H, XU L ZH, XU X Q. Wind disturbance study on large astronomical telescopes[J]. Optical Technique, 2009, 35(3):342-346. (in Chinese)

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