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	Effect of composite lattice on the high-temperature compressive behavior of silicone rubber based ablative materials 期刊论文 OAI收割 COMPOSITE STRUCTURES, 2024, 卷号: 344, 页码: 11 作者: Yang PX(杨佩新); Yuan W(袁武); Song HW(宋宏伟) \| 收藏 \| 浏览/下载：10/0 \| 提交时间：2024/08/12 Composite lattice Ablative materials High -temperature stiffness Enhancement effect
	In situ synthesis, structure, and properties of bulk nanolaminate YAl3C3 ceramic 期刊论文 OAI收割 JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2017, 卷号: 37, 期号: 1, 页码: 83-89 Zhao, Guorui; Chen, Jixin; Li, Yueming; Zheng, Liya; Li, Jialin; Wang, Xiaohui; Li, Meishuan 收藏 \| 浏览/下载：33/0 \| 提交时间：2017/08/17 Layered carbide YAl3C3 Crystal structure Mechanical properties High temperature stiffness
	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：41/0 \| 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.
	Study on ultra-light secondary baffle for coaxial two-mirror telescope (EI CONFERENCE) 会议论文 OAI收割 2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China 作者: Zhang L.; Zhang L. 收藏 \| 浏览/下载：61/0 \| 提交时间：2013/03/25 The coaxial two-mirror telescope consists of two mirrors facing each other. Classical two-mirror arrangements are Gregorian and Cassegrain. These systems are usually applied to space telescopes and often have optical baffles to prevent stray light from entering the focal plane. The optical baffles consist of concentric rings suspended between the secondary and the primary mirror. The secondary baffle for a large two-mirror optical system is designed and analyzed in this paper. According to mission of a telescope the structure should have high stiffness and high reliability and light weight. Compared with invar aluminum alloy and titanium alloy carbon fiber composite is currently the best material in terms of weight-to-strength ratio. It also has advantages of high temperature tolerance and low thermal expansion. So carbon fiber composite is chosen as material to meet requirements of the coaxial telescope. In this paper optimization method based on finite element analysis (FEA) is used for design the secondary baffle. Minimum weight of the baffle is chosen as an objective function. Thicknesses of former tube and vanes are chosen as variables. Analysis results show that the designed secondary baffle has maximum diameter of 180mm total length of 120mm and weighs 142g. And its fundamental frequency reaches 651Hz. Therefore the baffle has many advantages such as ultra-light weight high stiffness and dimensional stability etc. The optimization method and the baffle design can be helpful to other coaxial telescopes such as Cassegrain Gregorian and their subdivisions. 2012 IEEE.
	铪铝碳陶瓷及复合材料的制备、微观结构与性能表征学位论文 OAI收割博士, 北京: 中国科学院金属研究所, 2012 粘洪强收藏 \| 浏览/下载：87/0 \| 提交时间：2013/04/12 超高温陶瓷原位合成力学性能高温刚性 Ultrahigh termperature ceramic In situ synthesis Mechanical properties High temperature stiffness
	Structural design for lightweight off-axis TMA space telescope (EI CONFERENCE) 会议论文 OAI收割 2011 2nd International Conference on Digital Manufacturing and Automation, ICDMA 2011, August 5, 2011 - August 7, 2011, Zhangjiajie, Hunan, China 作者: Li Z.; Li Z. 收藏 \| 浏览/下载：35/0 \| 提交时间：2013/03/25 A kind of small space telescope with 1m focal length was designed. By adopting finite element analysis technique the structure of the space telescope was analyzed. The analysis results indicate that the surface profile accuracy of the mirrors reach to RMS 8.0nm with the working circumstances 4C uniform temperature change and space micro-gravity the base frequency of the structure was 115 Hz. It shows that the designed structure has sufficiently high dynamic and static stiffness and thermal dimensional stabiLity. This space optical telescope is very suitable for little satellite application. 2011 IEEE.