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浏览/检索结果: 共11条，第1-10条 帮助

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Effect of tungsten fiber diameter on the dynamic compression properties of tungsten fiber/Zr-based bulk metallic glasses matrix composite 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2022, 卷号: 164, 页码: 15
作者:  Du, Chengxin;  Du, Zhonghua;  Wang, Kehong;  Dai, Wei;  Gao, Guangfa
  |  收藏  |  浏览/下载：45/0  |  提交时间：2022/07/01
Extraction and characterization of bovine collagen Type V and its effects on cell behaviors 期刊论文  OAI收割
REGENERATIVE BIOMATERIALS, 2022, 卷号: 9, 页码: 11
作者:  Xu, Jun;  Luo, Xi;  Zhang, Yang;  Gao, Jianping;  Huang, Ching-Cheng
  |  收藏  |  浏览/下载：18/0  |  提交时间：2023/02/24
Penetration Failure Mechanism of Multi-Diameter Tungsten Fiber Reinforced Zr-Based Bulk Metallic Glasses Matrix Composite Rod 期刊论文  OAI收割
CRYSTALS, 2022, 卷号: 12, 期号: 2, 页码: 16
作者:  Du, Chengxin;  Fu, Huameng;  Zhu, Zhengwang;  Wang, Kehong;  Gao, Guangfa
  |  收藏  |  浏览/下载：37/0  |  提交时间：2022/07/01
Effect of Impact Velocity and Diameter of Tungsten Fiber on Penetration Ability of W-f/Zr-based Metallic Glass Composite Penetrator 期刊论文  OAI收割
RARE METAL MATERIALS AND ENGINEERING, 2017, 卷号: 46, 期号: 6, 页码: 1632-1637
作者:  Du Chengxin;  Du Zhonghua;  Zhu Zhengwang
  |  收藏  |  浏览/下载：76/0  |  提交时间：2021/02/02
Effect of Tungsten Fiber Diameter on Penetration Ability of Zr-based Metallic Glass Composites 期刊论文  OAI收割
RARE METAL MATERIALS AND ENGINEERING, 2017, 卷号: 46, 期号: 4, 页码: 1080-1085
作者:  Du Chengxin;  Du Zhonghua;  Zhu Zhengwang
  |  收藏  |  浏览/下载：17/0  |  提交时间：2021/02/02
Thermal Residual Stresses in W Fibers/Zr-based Metallic Glass Composites by High-energy Synchrotron X-ray Diffraction 期刊论文  OAI收割
Journal of Materials Science & Technology, 2015, 卷号: 31, 期号: 2, 页码: 159-163
X. Q.; Xue Zhang, Y. F.; Zhang, H. F.; Fu, H. M.; Wang, Z. B.; Nie, Z. H.; Wang, L.
收藏  |  浏览/下载：24/0  |  提交时间：2015/05/08
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：62/0  |  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.  
Research on lightweight outer baffle for coaxial space camera (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
作者:  Zhang L.;  Zhang L.
收藏  |  浏览/下载：17/0  |  提交时间：2013/03/25
Stray light is non-imaging light that reach the optical system imaging plane. The non-imaging light can be received by detector if it is not effectively controlled  and stray light which directly irradiates on the detector has great influence on the imaging quality. Stray light can be effectively inhibited  if the outer baffle of space camera is designed optimally. Carbon fiber composite material is chosen as main material to meet requirements of a coaxial space optical system. The outer baffle should have advantages  such as lightweight  high stiffness and dimensional stability  etc. Using optimization design tools  the lightweight outer baffle is designed. And finite element method is used to check the structure. Development and test results show that the outer baffle with a diameter of 620mm and a total length of 1200mm only weighs 7.3kg. And the baffle's natural frequency reaches 88Hz  and it can satisfy the requirements of the space camera. 2011 IEEE.  
The influence of ultra-fine glass fibers on the mechanical and anticorrosion properties of epoxy coatings 期刊论文  OAI收割
Progress in Organic Coatings, 2011, 卷号: 71, 期号: 2, 页码: 188-197
Y. S. Hao; F. C. Liu; H. W. Shi; E. H. Han; Z. Y. Wang
收藏  |  浏览/下载：26/0  |  提交时间：2012/04/13
Field enhancement and power distribution characteristics of subwavelength-diameter terahertz hollow optical fiber 期刊论文  OAI收割
opt. commun., 2008, 卷号: 281, 期号: 5, 页码: 1129, 1133
赵楚军; Wu Man; 范滇元; 文双春
收藏  |  浏览/下载：1182/205  |  提交时间：2009/09/18