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CAS IR Grid
机构
长春光学精密机械与物... [4]
武汉岩土力学研究所 [2]
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OAI收割 [6]
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会议论文 [5]
期刊论文 [1]
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2011 [1]
2010 [3]
2008 [1]
2007 [1]
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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
Soft clay
Unloading condition
Numerical simulation
Engineering example analysis
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
This paper focuses on thermal effects
which caused by environmental temperature changes
on coaxial reflective space telescope and its solution. Curvature radius and center thickness of optical elements
and the space distance between optical elements may be changed by thermal effects. And the optical performance of the telescope may be impacted. Based on the analysis of thermal effects on coaxial reflective space telescope
athermalized design techniques are emphatically presented
the advantages and the disadvantages of the three athermalizations used currently are compared in the paper. The feasibility and effectiveness are verified by an example of a cassegrain space telescope. 2010 Copyright SPIE - The International Society for Optical Engineering.
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
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提交时间:2013/03/25
The diffractive optical element (DOE) is always modeled as an ideal pure diffractive element which neglects the refractive dispersion of the element's material. In this paper
a new model of the diffractive optical element is proposed
in which the effect of the refractive dispersion of the DOE's material is considered. The new model is explained and compared with standard diffraction-order expansion with the help of a hybrid system example. The analytical results show that the new model has an important meaning for the exact analysis of the hybrid refractive-diffractive optical system. 2008 Copyright SPIE - The International Society for Optical Engineering.
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.
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收藏
  |  
浏览/下载:31/0
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提交时间:2018/06/05
Rock Engineering
Design
Flowchart
Modelling
Back Analysis
Case Example