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长春光学精密机械与物... [6]
力学研究所 [1]
地质与地球物理研究所 [1]
西安光学精密机械研究... [1]
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OAI收割 [9]
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会议论文 [6]
期刊论文 [3]
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2024 [1]
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固体力学::冲击动力... [1]
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A systematic study on linear thermal expansion coefficient of metals based on interferometric measurement with Fresnel bimirror
期刊论文
OAI收割
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2024, 卷号: 66, 期号: 5
作者:
Lu, Sifan
;
Zhao, Wenyu
;
Lin, Jia
;
Zhao, Xiaorui
;
Xu, Ruoyu
  |  
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2024/08/19
Fresnel bimirror interference
linear thermal expansion coefficient
self-programming
the finite-method simulation
Elastic equivalent numerical modeling based on the dynamic method of Longmaxi Formation shale digital core
期刊论文
OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2020, 卷号: 63, 期号: 7, 页码: 2786-2799
作者:
Jian ShiKai
;
Fu LiYun
;
Wang ZhiWei
;
Han TongCheng
;
Liu JianLin
  |  
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2020/09/28
Longmaxi Formation shale
Digital core
Elastic equivalent numerical modeling based on the dynamic method
Biot poroelastic equation
Finite-difference simulation
Structural amelioration of 920 nm optically pumped semiconductor vertical external-cavity surface emitting laser (OPS-VECSEL) (EI CONFERENCE)
会议论文
OAI收割
2nd International Conference on Energy, Environment and Sustainable Development, EESD 2012, October 12, 2012 - October 14, 2012, Jilin, China
作者:
Liu Y.
;
Liu Y.
;
Wang L.
;
Wang L.
;
Wang L.
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2013/03/25
920 nm optically pumped semiconductor vertical external-cavity surface emitting laser (OPS-VECSEL) has an important application in laser display. We constructed and optimized a 920 nm OPS-VECSEL with active region of In0.09Ga0.91As quantum well (QW) system pumped by 808 nm laser diode module. By the finite element method
self-consistent solutions of the semiconductor electronic and optical equations are realized to calculate the characteristics parameters of OPS-VECSEL. The performances of device especially the mode
the threshold and the optical-optical translation efficiency were analyzed by dealing with different number of QWs (1
2 and 3) in one period
QW depth
barrier width
the component and dimension of the non-absorption layer. We chose an improved structure of them. On this basis
we ameliorated the number of QW periods and the simulation showed that in order to obtain high performance device
the choice of the number of QW periods must be cautious. (2013) Trans Tech Publications
Switzerland.
Parametric study on single shot peening by dimensional analysis method incorporated with finite element method
期刊论文
OAI收割
ACTA MECHANICA SINICA, 2012, 卷号: 28, 期号: 3, 页码: 825-837
作者:
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2013/01/18
Shot peening
Maximum compressive residual stress
Maximum depth of the dent
Dimensional analysis method
Finite element method
Induced Residual-Stresses
Prediction
Simulation
Determination of optimum process parameters in gas-assisted injection molding (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Electrical Information and Mechatronics, ICEIM2011, December 23, 2011 - December 25, 2011, Jiaozuo, China
Zi K.
;
Chen L.
收藏
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浏览/下载:20/0
  |  
提交时间:2013/03/25
With finite element analysis software Moldflow
numerical simulation and studies about FM truck roof handle were conducted on gas-assisted injection molding process. The influences of melt pre-injection shot
gas pressure
delay time and melt temperature were observed by using multi-factor orthogonal experimental method. According to the analysis of the factors' impact on evaluation index
the optimized parameter combination is obtained. Therefore the optimization design of technological parameters is done. The results show that during the gas-assisted injection molding
optimum pre-injection shot is 94%
gas pressure is 15MPa
delay time is 0.5s
melt temperature is 240 C. This study provided a more practical approach for the gas-assisted injection molding process optimization.
A strong coupled CFD-CSD method on computational aeroelastity (EI CONFERENCE)
会议论文
OAI收割
2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011, July 15, 2011 - July 17, 2011, Inner Mongolia, China
Xi R.
;
Jia H.
收藏
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浏览/下载:67/0
  |  
提交时间:2013/03/25
In this paper
a strong coupled CFD-CSD method is developed to simulate the aeroelastic phenomena. The CFD solver is based on the finite-volume algorithm for the Navier-Stokes equations on unstructured grid. The CSD solver solves the aeroelastic governing equations in the modal space. Their coupling is realized by a dual-time method. The spring-based smoothing method is adopted to deform and regenerate the aerodynamic grid. Two test cases are selected to validate the authors' method for static and dynamic aeroelastity .The results of the simulation for the static aeroelastic problems of a missile wing show that the Lift Coefficient and Drag Coefficient are severally 7% and 5% lower than those don't consider the elasticity of the wing. The results for the flutter boundary prediction of the AGARD 445.6 wing have been proved much closer to the experiment than using the DLM. This method can describe the effects of fluid viscosity more exactly for highly nonlinear transonic flight conditions. The calculation has proved reliable in the subsonic regime
but not accurate enough in the supersonic regime. 2011 IEEE.
Numerical simulation on efficient spinning technology based on multi-point adjusting principle (EI CONFERENCE)
会议论文
OAI收割
2nd International Conference on Manufacturing Science and Engineering, ICMSE 2011, April 9, 2011 - April 11, 2011, Guilin, China
Gong X. P.
收藏
  |  
浏览/下载:29/0
  |  
提交时间:2013/03/25
In order to realize high efficiency and flexible manufacturing for rotary surfaces
equivalent stress in sheet metal's center region and bendable rollers active region exceeds yield stress
efficient spinning technology (EST) is researched. It is the combination of multi-point forming and traditional spinning. Principle of EST is described
and plastic deformation is generated
traditional spinning method is compared with it
experimental result accords with simulation result. Feasibility of EST is validated by simulation and experimental results. (2011) Trans Tech Publications.
and characteristics of it are analyzed. Finite element analysis (FEA) model of disc-shape part is established
EST process is analyzed
equivalent stress and plastic strain distributions are analyzed. EST equipment is developed
and the experiments are made. Results indicate: EST process consists of four stages
Motion mechanism analysis of a two-degree-of-freedom spherical motor (EI CONFERENCE)
会议论文
OAI收割
2nd International Conference on Information Engineering and Computer Science, ICIECS 2010, December 25, 2010 - December 26, 2010, Wuhan, China
作者:
Guo K.
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2013/03/25
The working principle of a two-degree-of-freedom piezoelectric spherical motor using only one piezoelectric element was analyzed. The resonance frequencies of the motor's plate type piezoelectric vibrator were calculated by finite element method. The computer simulation was executed to analyze the motion trajectory of the four contact points between the stator and the sphere. Simulation results verified that the four contact points can form timing reasonable elliptical trajectories which re designed to drive the sphere to form two rotation degrees of freedom. The conclusion indicated the formation of two-dimensional movement mechanism of the spherical motor. 2010 IEEE.
A design of high-speed and low-consume parallel grouping RS code and simulation (EI CONFERENCE)
会议论文
OAI收割
2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China
Chen C.
;
Jin G.
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2013/03/25
RS code is a linear error correction codes with better error correction capability
is widely used in different kinds of occasions for communications or data storage. But for its high difficulty of coding and decoding algorithm and low throughput
optimization RS algorithm is always studied as one of the focus in the error-correction field. A new coding method
parallel coding and decoding data into groups in lower step finite field for avoiding complex matrix iteration and Chien search computation
is proposed in this paper. It is proved that the coding and decoding throughput of the parallel grouping RS coder is increased and the hardware complexity is reduced with changeless error-correction capability from the simulation results using ModelSim SE 6.0 and synthetic results using ISE 9.11. 2010 IEEE.