中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
长春光学精密机械与物... [2]
海洋研究所 [1]
南京天文光学技术研究... [1]
武汉岩土力学研究所 [1]
深海科学与工程研究所 [1]
采集方式
OAI收割 [6]
内容类型
会议论文 [3]
期刊论文 [3]
发表日期
2025 [1]
2019 [2]
2013 [2]
2011 [1]
学科主题
天文技术与方法 [1]
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Load-bearing behaviors of the composite gravity-type anchorage: Insights from physical model and numerical tests
期刊论文
OAI收割
ENGINEERING FAILURE ANALYSIS, 2025, 卷号: 167, 页码: 21
作者:
Wang, Chengtang
;
Han, Hongju
;
Wang, Hao
;
Zhang, Xiuli
;
Liu, Xinhua
  |  
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2025/06/27
Composite gravity-type anchorage
Load-bearing performance
Failure process
Load sharing ratio
Model tests
Numerical simulations
Crustal stretching style variations in the northern margin of the South China Sea
期刊论文
OAI收割
TECTONOPHYSICS, 2019, 卷号: 751, 页码: 1-12
作者:
Bai, Yongliang
;
Dong, Dongdong
;
Brune, Sascha
;
Wu, Shiguo
;
Wang, Zhenjie
  |  
收藏
  |  
浏览/下载:51/0
  |  
提交时间:2019/05/15
Crustal stretching style
Lower crustal flow
The northern margin of the South China Sea
Gravity inversion
Sediment load
Divergent mantle flow
Crustal stretching style variations in the northern margin of the South China Sea
期刊论文
OAI收割
TECTONOPHYSICS, 2019, 卷号: 751, 期号: 1, 页码: 1-12
作者:
Dong, Dongdong
;
Bai, Yongliang
;
Brune, Sascha
;
Wu, Shiguo
;
Wang, Zhenjie
  |  
收藏
  |  
浏览/下载:54/0
  |  
提交时间:2019/04/02
Crustal Stretching Style
Lower Crustal Flow
The norThern Margin Of The South China Sea
Gravity Inversion
Sediment Load
Divergent Mantle Flow
Modeling and Simulation of Chinese SONG telescope
会议论文
OAI收割
Wuhan, Hubei, China, 2013-6-20
作者:
Guomin Wang
;
Liang Gao
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2014/02/11
FEM
SONG telescope
gravity load
modal analysis
seismic load
Structural design of primary mirror subassembly for space telescope (EI CONFERENCE)
会议论文
OAI收割
2nd International Conference on Mechatronics and Applied Mechanics, ICMAM 2012, December 8, 2012 - December 9, 2012, Taiwan
作者:
Xu H.
收藏
  |  
浏览/下载:66/0
  |  
提交时间:2013/03/25
In order to design a large aperture primary mirror with the diameter of 1150 mm
the parameters impacting on gravity deformation of the mirror were analyzed and discussed in detail
including material selection
diameter-thickness ratio
the number of the support points
location selection and lightweight structure
etc. A novel space mirror structure system was put forward
and its back was opened and supported by six points on back. The dynamic and static and thermal characteristics were analyzed based on the finite element method. Analysis results showed the surface figure accuracy reached to RMS 14.5nm under the action of gravity load along the optical axis direction and the first-order natural frequency was 214Hz which met to the designed indexes requirements. (2013) Trans Tech Publications
Switzerland.
Design and test of pointing mirror assembly for spaceborne remote sensing camera (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Electronics, Communications and Control, ICECC 2011, September 9, 2011 - September 11, 2011, Ningbo, China
作者:
Chen W.
收藏
  |  
浏览/下载:39/0
  |  
提交时间:2013/03/25
In order to ensure the surface figure of the pointing mirror (460mm long
290mm wide) in spaceborne remote sensing camera
Silicon Carbide was selected as the mirror material. The form of composite triangular and rectangular and the combination of open and closed back was explored in the lightweight design. A new kinematic mount and flexible structure in axis is used to hold the mirror around the lateral surface. The structure can minimize distortions induced by coefficient of thermal expansion mismatch among the materials. This eliminates the bending of the integral mount under the weight of the mirror. Optical performance of the mirror was analyzed under gravity load and temperature load using finite element method. Predicted surface figure error based on the removal of bias
tilt and power was calculated using an in-house Matlab script for mirrors. The pointing mirror assembly was tested using open loop servo control. And the surface figure was checked using interferometer. Surface figure accuracy is better than 1/30 ( 632.8nm
rms). The results show that the kinematic mount induces minimal figure error on the optical surface. 2011 IEEE.