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长春光学精密机械与物... [5]
合肥物质科学研究院 [1]
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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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2021 [1]
2012 [1]
2011 [3]
2009 [1]
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Numerical study on water draining process pushed by nitrogen in EAST upper divertor
期刊论文
OAI收割
FUSION ENGINEERING AND DESIGN, 2021, 卷号: 170
作者:
Li, Weibao
;
Hu, Jiansheng
;
Fu, Peng
;
Yang, Lei
;
Guo, Bin
  |  
收藏
  |  
浏览/下载:42/0
  |  
提交时间:2021/09/06
EAST Tokamak
Drainage
Gas-liquid
Divertor
FLUENT analysis
Research on load-bearing characteristics of precision air-bearing rotary stage (EI CONFERENCE)
会议论文
OAI收割
3rd international Conference on Manufacturing Science and Engineering, ICMSE 2012, March 27, 2012 - March 29, 2012, Xiamen, China
作者:
Wang L.
;
Wang L.
;
Wang L.
;
Lin J.
收藏
  |  
浏览/下载:117/0
  |  
提交时间:2013/03/25
Air-bearing is a core component of air-bearing rotary stage. The weakness that the air-bearing has the low load capacity and stiffness has been concerned about by domestic and foreign scholars. So how to improve the load capacity and stiffness has become a serious problem. In order to improve the load capacity and stiffness of the air-bearing rotary stage
in this paper
we improved structure of Zhang Wenjie and others' high-precision direct-drive air-bearing rotary stage. The gas film of air-bearing has been meshed by GAMBIT software
and we use FLUENT software to obtain the carrying capacity features of the gas film. Finally
the structural static force of the precision air-bearing rotary stage will be analyzed by ANSYS software. The analysis results show that: the structural design of the precision air-bearing rotary stage is reasonable
and this structure can provide a larger range of loads. Even in heavy load conditions
a larger deformation will not occur any more. It has a good practical value
and also can be widely used in high precision equipments. (2012) Trans Tech Publications.
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:32/0
  |  
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.
The flow field analysis of the automotive power streering congtrol unit's flow channel (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011, September 16, 2011 - September 18, 2011, Guangzhou, China
Cheng K.
;
Yan L.
;
Li G.
;
Tang J.
收藏
  |  
浏览/下载:16/0
  |  
提交时间:2013/03/25
The automotive power steering units must be taken performance test after they are integrated assembly and then left the factory if it is qualified.Because its internal flow channel is very complicated and the residual hydraulic oil can not be eleminated clearly.So we can set up a 3D model flow channel based on CATIA and use FLUENT software to analysis the key flow channel
analysing it's pressure distribution and velocity vector diagram then get the real reasonable resluts
which can provide the basic for the ejector designing. (2011) Trans Tech Publications.
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:26/0
  |  
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.
Equivalent lenses of supersonic seeker's outflow refractive index field obtained by simulation and experiment (EI CONFERENCE)
会议论文
OAI收割
2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, November 16, 2008 - November 19, 2008, Beijing, China
Qun W.
;
Hongguang J.
;
Ming X.
收藏
  |  
浏览/下载:25/0
  |  
提交时间:2013/03/25
In order to decrease the aerodynamic drag of supersonic image guide missile and design a non-spherical dome
the outflow field of the missile's dome is simulated using FLUENT. Based on the simulated results
the accurate density field of the outflow field at all kinds of flight conditions is obtained
and then the refractive index field of the outflow field is gotten according to the Gladstone-Dale law. The results show that the shock wave induces the heterogeneity of the refractive index field and the turbulent causes distortion. The outflow field is divided into several zones which are taken as equivalent lenses for aberration analysis. 2009 SPIE.