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Analysis of sealing characteristics of rolling blinds window for large aperture laser emission system 期刊论文
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering, 2019, 卷号: 48, 期号: 5
作者:  T.Ren;  S.Shao;  L.Meng;  K.Wang
收藏  |  浏览/下载：0/0  |  提交时间：2020/08/24
Effect of Ta addition on the microstructures and mechanical properties of in situ bi-phase (TiB2-TiCxNy)/(Ni-Ta) cermets 期刊论文
Ceramics International, 2019, 卷号: 45, 期号: 4, 页码: 4408-4417
作者:  H.Y.Yang;  Z.Wang;  S.L.Shu;  J.B.Lu
收藏  |  浏览/下载：0/0  |  提交时间：2020/08/24
Effects of alloying elements on the phase constitution and microstructure of in situ SiC/Al composites 期刊论文
International Journal of Modern Physics B, 2019, 卷号: 33, 期号: 1-3, 页码: 9
作者:  H.Y.Yang;  E.T.Dong;  B.Q.Zhang;  L.Y.Chen;  Y.X.Jin
收藏  |  浏览/下载：1/0  |  提交时间：2020/08/24
A novel fusion framework of visible light and infrared images based on singular value decomposition and adaptive DUAL-PCNN in NSST domain 期刊论文
Infrared Physics & Technology, 2018, 卷号: 91, 页码: 153-163
作者:  Cheng, B. Y.;  Jin, L. X.;  Li, G. N.
收藏  |  浏览/下载：2/0  |  提交时间：2019/09/17
Mechanical properties and abrasive wear behaviors of in situ nano-TiCx-Al-Zn-Mg-Cu composites fabricated by combustion synthesis and hot press consolidation 期刊论文
Archives of Civil and Mechanical Engineering, 2018, 卷号: 18, 期号: 1, 页码: 179-187
作者:  Gao, Y. Y.;  Qiu, F.;  Shu, S. L.;  Wang, L.
收藏  |  浏览/下载：4/0  |  提交时间：2019/09/17
Microstructures and Compressive Properties of Al Matrix Composites Reinforced with Bimodal Hybrid In-Situ Nano-/Micro-Sized TiC Particles 期刊论文
Materials, 2018, 卷号: 11, 期号: 8, 页码: 13
作者:  Qiu, F.;  Tong, H. T.;  Gao, Y. Y.;  Zou, Q.;  Dong, B. X.
收藏  |  浏览/下载：0/0  |  提交时间：2019/09/17
Infrared and visual image fusion using LNSST and an adaptive dual-channel PCNN with triple-linking strength 期刊论文
Neurocomputing, 2018, 卷号: 310, 页码: 135-147
作者:  Cheng, B. Y.;  Jin, L. X.;  Li, G. N.
收藏  |  浏览/下载：10/0  |  提交时间：2019/09/17
Structural design of large aperture rectangular mirror for space telescope (EI CONFERENCE) 会议论文
2nd International Conference on Civil Engineering and Transportation, ICCET 2012, October 27, 2012 - October 28, 2012, Guilin, China
Li Z.
收藏  |  浏览/下载：27/0  |  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.  
Image mosaic technique based on the information of edge (EI CONFERENCE) 会议论文
2012 3rd International Conference on Digital Manufacturing and Automation, ICDMA 2012, July 31, 2012 - August 2, 2012, Guilin, Guangxi, China
Wu Z.-G.; Wang M.-J.; Wang Y.-Q.
收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25
Image mosaic is an important branch in the field of image processing. This paper designs and realizes an image mosaic technique based on the information of edge. The technology is suitable for engineering application. First of all  two images of the adjoining frames are processed by convolution operation  get the edge images. And then we cut edge image into pieces and compute their spatial frequency. According to the value of the spatial frequency select reasonable registration model group. We compute correlation strength and the value of movement offset which are the model group and the current frame edge image. We can complete image mosaic by them. We use video sequence which of the resolution is 1024 * 768 do the experiment. The results show that the method has good effect and strong adaptability. Algorithm is high efficiency which running time is 24 ms. It is suitable for real-time processing requirements of the application. This method is an effective mosaic technique which is suitable for engineering application. 2012 IEEE.  
Study on ultra-light secondary baffle for coaxial two-mirror telescope (EI CONFERENCE) 会议论文
2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China
Zhang L.; Jia X.; Xie P.; Xing L.
收藏  |  浏览/下载：44/0  |  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.  

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