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	Design and analysis of radial supports for a large aperture prism 会议论文 OAI收割 Shanghai, China, 2021-10-28 作者: Wen, Wansha; Ruan, Ping; Lv, Tao \| 收藏 \| 浏览/下载：36/0 \| 提交时间：2022/03/18 large aperture prism radial support finite element analysis optical surface evaluation
	Weak scratch detection and defect classification methods for a large-aperture optical element 期刊论文 OAI收割 OPTICS COMMUNICATIONS, 2017, 卷号: 387, 期号: 0, 页码: 390-400 作者: Tao, Xian; Xu, De; Zhang, Zheng-Tao; Zhang, Feng; Liu, Xi-Long \| 收藏 \| 浏览/下载：34/0 \| 提交时间：2017/02/14 Optical Inspection Weak Scratches Surface Defects Classification Large-aperture Optical Element
	A Novel and Effective Surface Flaw Inspection Instrument for Large-Aperture Optical Elements 期刊论文 OAI收割 IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2015, 卷号: 64, 期号: 9, 页码: 2530-2540 作者: Tao, Xian; Zhang, Zhengtao; Zhang, Feng; Xu, De 收藏 \| 浏览/下载：63/0 \| 提交时间：2015/09/23 Bright-field imaging system (BFIS) dark-field imaging system (DFIS) flaw inspection image processing large-aperture optical element measurement path planning
	Structural design of primary mirror subassembly for space telescope (EI CONFERENCE) 会议论文 OAI收割 2nd International Conference on Mechatronics and Applied Mechanics, ICMAM 2012, December 8, 2012 - December 9, 2012, Taiwan 作者: Xu H. 收藏 \| 浏览/下载：63/0 \| 提交时间：2013/03/25 In order to design a large aperture primary mirror with the diameter of 1150 mm the parameters impacting on gravity deformation of the mirror were analyzed and discussed in detail including material selection diameter-thickness ratio the number of the support points location selection and lightweight structure etc. A novel space mirror structure system was put forward and its back was opened and supported by six points on back. The dynamic and static and thermal characteristics were analyzed based on the finite element method. Analysis results showed the surface figure accuracy reached to RMS 14.5nm under the action of gravity load along the optical axis direction and the first-order natural frequency was 214Hz which met to the designed indexes requirements. (2013) Trans Tech Publications Switzerland.
	Structural design of large aperture rectangular mirror for space telescope (EI CONFERENCE) 会议论文 OAI收割 2nd International Conference on Civil Engineering and Transportation, ICCET 2012, October 27, 2012 - October 28, 2012, Guilin, China 作者: Li Z.; Li Z. 收藏 \| 浏览/下载：43/0 \| 提交时间：2013/03/25 Structural design of large aperture mirror is one of the key technologies for space telescope development. To meet the requirements of high stiffness strength and thermal dimensional stability some factors such as support scheme materials selection lightweight design and flexible support design were taken into account. The three supports location of the mirror was determined according to the modal analytical solution. By adjusting the parameters of flexure hinge influences of gravity assembly stress and thermal stress on the mirror were reduced obviously. Finite element analysis (FEA) results indicate that the surface accuracy reach to rms10.2nm and 10.8nm under the gravity along optical axis direction and 5C uniform temperature rise respectively the fundamental frequency of the mirror component is 268Hz. Dynamics test shows that the first order natural frequency is 256Hz which shows an error less than 5% compared to FEA results. (2013) Trans Tech Publications Switzerland.
	Aberration Analysis for Development of Large- Aperture Reflector by Finite element 会议论文 OAI收割 Chengdu, China, 2008-11-19 作者: Yuanjing Peng; Lvjun Yuan 收藏 \| 浏览/下载：25/0 \| 提交时间：2014/01/02 Large- aperture optical reflector Support Finite element Zernike polynomial Aberration