The Theoretical Model and Simulation of Resonant Sensors

2011 ◽  
Author(s):  
Xing Weiwei ◽  
Du Yan ◽  
Fan Shangchun
Keyword(s):  
Theoretical Model ◽  
Resonant Sensors ◽  
Model And Simulation

The Analysis for the Storage of Difficult Bulk Materials with Central Cone Silo

2012 ◽  
Vol 157-158 ◽  
pp. 154-160
Author(s):  
Wen Jun Meng ◽  
Tian Wei Hong ◽  
Hai Tao Bian
Keyword(s):  
Theoretical Model ◽  
Simulation Model ◽  
Theoretical Calculation ◽  
Bulk Materials ◽  
High Quality ◽  
Model And Simulation ◽  
Central Cone ◽  
Simulation Results

To design high quality and efficiency discharging system, according to the analysis of strength and the study of discharging principle for bulk materials between general silo and central cone silo with discharge arms, their theoretical model and simulation model are established. Based on the theoretical calculation and simulation results, it is proved that the central cone silo which has a rotary discharge arm or discharge arms revolving around the central cone has advantages with discharging the difficult bulk materials, which could efficiently prevent the harmful discharging such as bridging, rat-hole and so on. Controlling the outflow of bulk materials, it is easy to automatically discharge the bulk materials and improve the efficiency of silo system. The result shows that the central cone is practical and the discharging way provides a new program for solving technology problems in discharging the difficult bulk materials.

scholarly journals Theoretical model and simulation of ship underwater radiated noise

2016 ◽  
Vol 65 (12) ◽  
pp. 124301
Author(s):  
Sun Jun-Ping ◽  
Yang Jun ◽  
Lin Jian-Heng ◽  
Jiang Guo-Jian ◽  
Yi Xue-Juan ◽  
...  
Keyword(s):  
Theoretical Model ◽  
Radiated Noise ◽  
Underwater Radiated Noise ◽  
Model And Simulation

Theoretical model and simulation of the extremely short external cavity semiconductor laser

2007 ◽  
Author(s):  
Guangqiong Xia ◽  
Zhengmao Wu ◽  
Jiagui Wu ◽  
Zhaoyun Li ◽  
Qi Yang ◽  
...  
Keyword(s):  
Theoretical Model ◽  
Semiconductor Laser ◽  
External Cavity ◽  
Model And Simulation

Simulation of the Discharging Process Throughout a Porous Medium Initially Saturated With Fluid

2003 ◽  
Author(s):  
G. J. Carbajal ◽  
J. E. Gonza´lez ◽  
R. Diaz
Keyword(s):  
Experimental Data ◽  
Surface Tension ◽  
Porous Medium ◽  
Theoretical Model ◽  
Pressure Drop ◽  
Simulation Analysis ◽  
Data Sets ◽  
Model And Simulation ◽  
Linear Behavior ◽  
Numerical Formulation

This paper presents the development of a theoretical model and simulation analysis for the discharging process that takes place in a porous medium initially saturated with ink. During the discharging process the porous material provides enough surface area to hold the fluid by capillarity effects. It was found by the numerical solution that the velocity profile through the porous region was uniform and the backpressure had a linear behavior as function of time. A parametric study also revealed that the permeability, void volume and surface tension have a significant effect on the pressure drop. The numerical formulation was validated with experimental data and good agreements were found between both data sets.

scholarly journals Reliability Evaluation for Cable-Spring Folding Wing Considering Synchronization of Deployable Mechanism

Actuators ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 99
Author(s):  
Yun Gao ◽  
Ming Hu ◽  
Xiaohong Zhou ◽  
Mingzhong Zhang
Keyword(s):  
Theoretical Model ◽  
Driving Force ◽  
Reliability Evaluation ◽  
Driving Mechanism ◽  
Strong Nonlinearity ◽  
Factors Affecting ◽  
Model And Simulation ◽  
Reliability Method ◽  
Folding Wing ◽  
Deployable Mechanism

The cable-spring folding wing is a novel type of rigid-flexible coupling structure for missiles, which is composed of several sets of deployable mechanisms, with each composed of a wheel-rope transmission system and a parallel spring driving mechanism. The movement of the cable is initiated by the driving force produced by parallel springs, which directly changes the magnitude and the distribution of the driving force. Therefore, the cable-spring folding wing system has the typical characteristics of strong nonlinearity and motion coupling. In addition, each deployable mechanism shares an identical structure, but the distribution of motion parameters is discrepant due to external loads. Asynchronous movement of the cable-spring folding wing will occur and become a significant issue, which is detrimental to the working performance and could even lead to failure. Focusing on these problems, the multi-body dynamics theoretical model and simulation model of deployable mechanism are established, the kinematic and dynamic characteristics of critical components are studied, and the key factors affecting the deployment performance are investigated. A new reliability method with an angular precision control for deployable mechanism is proposed based on the theoretical model. The effectiveness of the proposed model and method is verified by comparing it with the Monte Carlo method. On this basis, the reliability evaluation for cable-spring folding wing, comprehensively considering deployment performance and synchronization, is carried out.

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