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CAS IR Grid
机构
地质与地球物理研究所 [3]
长春光学精密机械与物... [3]
青藏高原研究所 [1]
海洋研究所 [1]
南京天文光学技术研究... [1]
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OAI收割 [9]
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期刊论文 [5]
会议论文 [4]
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2013 [1]
2011 [2]
2010 [1]
2009 [1]
2008 [3]
2006 [1]
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学科主题
Geoscience... [1]
地球科学::地球化学 [1]
天文技术与方法 [1]
天文望远镜::南极望... [1]
天文望远镜::郭守敬... [1]
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Formation of the Moping Dome in the Xuefengshan Orocline, Central China and its Tectonic Significance
期刊论文
OAI收割
ACTA GEOLOGICA SINICA-ENGLISH EDITION, 2013, 卷号: 87, 期号: 3, 页码: 720-729
作者:
Shi Wei
;
Dong Shuwen
;
Li Jianhua
;
Tian Mi
;
Wu Guoli
  |  
收藏
  |  
浏览/下载:15/0
  |  
提交时间:2017/12/22
Xuefengshan Orocline
Moping Dome
Superposed Structure
Paleo-stress Field
Intracontinental Orogeny
Thermal analysis on supersonic ellipsoidal dome (EI CONFERENCE)
会议论文
OAI收割
2nd International Conference on Multimedia Technology, ICMT 2011, July 26, 2011 - July 28, 2011, Hangzhou, China
Jiang Z.
;
Wei Q.
;
Jia H.
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2013/03/25
Studied the transient thermal transfer analysis method due to a kind of supersonic ellipsoidal dome
which is a conformal dome. Illuminated the principle of transient thermal transfer analysis. Accomplished the transient thermal analysis based on the model of ellipsoidal dome
and studied the influence about the different material and the different velocity. Considered three materials consist of MgF2
Al2O3
and ZnS
and meanwhile
the velocity was Mach2.5
and the time consists of 10s
20s and 60s. The temperature initial loads were from FLUENT thermal simulation. The thermal conduction analysis and the thermal convection analysis were finished in software ANSYS
in which the entire transient thermal analysis consists of modeling
meshing element
calculating and getting the results. The different temperature distributions based on varied time were gotten about the different materials. The results from analysis showed the temperature distribution of the structure of ellipsoidal dome
which could help the following coupled thermal-structure analysis. 2011 IEEE.
Thermal-structure analysis of supersonic dome based on three materials (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China
Jiang Z.
;
Ai X.
;
Wei Q.
;
Liu B.
;
Jia H.
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2013/03/25
To a supersonic missile
a seeker could enhance the aerodynamic ability due to decrease the resistance in flying. At the same time
the primary function of a seeker has been considered as the most important equipment for a missile
due to the importance for cueing of targets and tracking for the final approach. However
the dome of a seeker
which is made up of glass
has poor mechanical performance. Especially
in the higher altitude
for a dome
in which the aerothermal and pressure loads could destroy the structure easily
it is necessary to do the thermal-structure coupled analysis due to varied materials. In the paper
to take the spherical dome of a seeker as a example
the analysis has been completed according to the varied materials consist of MgF2
Al2O3 and ZnS. The temperature loads and the pressure loads derived from the results of fluent analysis has been forced on the surface of dome
which simulates the actual Mach 2.5 in flying. According to the results of coupled analysis
the SEQV stress of the dome radium 80mm based on three materials had reached to 31MPa
which shows that the strength is sufficient for Mach 2.5
and offered the warranty to design the attaching to missile for the dome. At the same time
the results required the flexible mounting for the dome due to the displacements results
which the crystal material couldn't accept. 2011 IEEE.
Gimbal displacement error analysis on an electro-optical seeker (EI CONFERENCE)
会议论文
OAI收割
Optical Design and Testing IV, October 18, 2010 - October 20, 2010, Beijing, China
作者:
收藏
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浏览/下载:32/0
  |  
提交时间:2013/03/25
It is essential to analyze the gimbal displacement errors for a seeker due to the importance for cueing of targets and tracking for the final approach. Otherwise
for a seeker electro-driven with a concentric glass dome
the large errors will decrease the picking
pointing
and tracking precision rooted from the displacement errors existing between the rotation center of the optical system and the gimbal. And the gimbaled camera system displacement errors are never eliminated but reduced due to the geometric errors consists of geometric tolerances of gimbal structure
manufacture
installation and vibration coming from working environment. In this paper
the gimbal displacement errors in an electro-optically stabilized platform resulting from geometric errors and environment errors were analyzed and shown in detail. The mathematical modal of the gimbal displacement errors created based on multi-body dynamics demonstrated the connection between the gimbal displacement errors and the stabilized platform. Taking a visible light image seeker as a case
the diameter is 120mm
and the geometric tolerances came from the values of primary design and the vibration data came from the environmental vibration test on the pitch-yaw seeker
and at the same time
the errors resulting from installation were considered too. Based on calculating
the maximum gimbal displacement error will reach to 0.2mm for pitching angle smaller than 40 and yawing angle smaller than 60. However
the critical parts have been found out according to the probability theory and the reliability analysis successfully used in the paper
and finally
the maximum gimbal displacement error reduced to 0.1mm
which is acceptable corresponding to the picking
pointing and tracking precision for an optical imaging seeker. 2010 Copyright SPIE - The International Society for Optical Engineering.
Midcrustal low-velocity layer beneath the central Himalaya and southern Tibet revealed by ambient noise array tomography
期刊论文
OAI收割
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2009, 卷号: 10, 期号: Q05007
作者:
Gao X(高星)
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2010/04/21
SURFACE-WAVE TOMOGRAPHY
SEISMIC NOISE
INDIAN SUBCONTINENT
2-STATION ANALYSIS
CRUSTAL STRUCTURE
KANGMAR DOME
SUTURE ZONE
SE TIBET
MANTLE
PLATEAU
Characteristics of shallow gas hydrate in Okhotsk Sea
期刊论文
OAI收割
SCIENCE IN CHINA SERIES D-EARTH SCIENCES, 2008, 卷号: 51, 期号: 3, 页码: 415-421
作者:
XiWu, Luan
;
YoungKeun, Jin
;
Obzhirov, Anatoly
;
BaoJing, Yue
  |  
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2010/12/24
Okhotsk Sea
Shallow Gas Hydrates
Free Gas
Dome Structure
Contrasted tectonic styles for the Paleoproterozoic evolution of the North China Craton. Evidence for a similar to 2.1 Ga thermal and tectonic event in the Fuping Massif
期刊论文
OAI收割
JOURNAL OF STRUCTURAL GEOLOGY, 2008, 卷号: 30, 期号: 9, 页码: 1109-1125
作者:
Trap, P.
;
Faure, M.
;
Lin, W.
;
Bruguier, O.
;
Monie, P.
  |  
收藏
  |  
浏览/下载:12/0
  |  
提交时间:2018/09/26
Trans-North China Belt
Paleoproterozoic geodynamics
Dome-and-basin structure
Ductile shearing
Syntectonic plutonism
Contrasted tectonic styles for the Paleoproterozoic evolution of the North China Craton. Evidence for a similar to 2.1 Ga thermal and tectonic event in the Fuping Massif
期刊论文
OAI收割
JOURNAL OF STRUCTURAL GEOLOGY, 2008, 卷号: 30, 期号: 9, 页码: 1109-1125
作者:
Trap, P.
;
Faure, M.
;
Lin, W.
;
Bruguier, O.
;
Monie, P.
  |  
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2018/09/26
Trans-North China Belt
Paleoproterozoic geodynamics
Dome-and-basin structure
Ductile shearing
Syntectonic plutonism
Tracking system of 2m LAMOST-style telescope for the Antarctic Plateau
会议论文
OAI收割
Orlando, FL, 2006-5-24
作者:
Guomin Wang
;
Bozhong Gu
;
Heng Zuo
;
Xiang Jiang
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2013/12/28
telescope
antarctic
Dome-A
structure design