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The numerical simulation research of the deformation character for the soft clay foundation in the unloading condition 会议论文  OAI收割
Jinan, PEOPLES R CHINA, OCT 14-16, 2011
作者:  
Tang Bin;  Wang Ren;  Wang Hongxing
  |  收藏  |  浏览/下载:24/0  |  提交时间:2018/06/05
Nonlinear analysis method for predicting optical surface deformations resulted from assembly process (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, April 26, 2010 - April 29, 2010, Dalian, China
Dong W.; Yong Y.; Guang J.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
There are three main nonlinear elements in the large mirror assemblies  which are screw pretension  adhesive stress and state changes in the assembly process. The optical shape will be influenced seriously by these factors. But the impacts will not be shown in linear analysis results  because as the simplification  these factors have been ignored. The nonlinear analysis method for predicting optical surface deformations resulted from assembly process is discussed in detail. Take a typical mirror support structure for example  the nonlinear analysis model was established. Comparing the calculation results with the optical shape test  it is illustrated that nonlinear analysis is more accurate and closer to the test result. And according to the simulation result  the bowl-shaped depression which was discovered in the test can also be explained reasonably. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Athermalization of coaxial reflective space telescope (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, April 26, 2010 - April 29, 2010, Dalian, China
Lei Z.; Guang J.
收藏  |  浏览/下载:17/0  |  提交时间:2013/03/25
Bootstrap loader design of aerospace payload controller based on TSC695F (EI CONFERENCE) 会议论文  OAI收割
2010 2nd International Conference on Computational Intelligence and Natural Computing, CINC 2010, September 13, 2010 - September 14, 2010, Wuhan, China
Xu W.; Piao Y.
收藏  |  浏览/下载:39/0  |  提交时间:2013/03/25
Anti-radiation TSC695F is usually used as aerospace payload controller in tasks to ensure the aerospace payload having extremely high reliability in abominable space environment. The processor bases on SP ARC V7 architecture with parity check and EDAC  so it could design out high reliable bootstrap loader to guarantee the operation system of VxWorks and application codes loaded correctly and worked stable and high effective. First  this paper put forward the system hardware composition and boot mode which apply for aerospace payload  then it makes clear the related contents of register group initialization  stack initialization  system hardware initialization in bootstrap loader of TSC695F and give out the method to establish TRAP table. That's all through comparing different type of organize mode of program image. After that  compiling of target codes have been described and the kernel code of MakeFile had been given at the same time for reference aimed at the realization of engineering. Although this paper is based on TSC695F  but it could be extended to other embedded system based on SP ARC for bootstrap loader analysis and design  for example  the TSC697 which based on SP ARC V8 with higher performance  so this paper has extremely high engineering value. 2010 IEEE.  
Modeling diffractive optical elements in hybrid systems with the effect of the material dispersion (EI CONFERENCE) 会议论文  OAI收割
Current Developments in Lens Design and Optical Engineering IX, August 11, 2008 - August 12, 2008, San Diego, CA, United states
作者:  
Zhang H.;  Liu H.;  Liu H.;  Liu H.;  Zhang H.
收藏  |  浏览/下载:17/0  |  提交时间:2013/03/25
Updated flowcharts for rock mechanics modelling and rock engineering design 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2007, 卷号: 44, 期号: 2, 页码: 174-195
作者:  
Feng, X. T.;  Hudson, J. A.
  |  收藏  |  浏览/下载:31/0  |  提交时间:2018/06/05