Numerical Simulation of Thermal Conductivity of Particle Filled Epoxy Composites

2009 ◽  
Vol 131 (4) ◽  
Author(s):  
Jun Zeng ◽  
Renli Fu ◽  
Simeon Agathopoulos ◽  
Shaodong Zhang ◽  
Xiufeng Song ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Finite Element ◽  
Filler Content ◽  
Three Dimensional ◽  
Theoretical Models ◽  
Epoxy Composites ◽  
Numerical Estimation ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Three Dimensional Models

A finite element method was developed to predict the effective thermal conductivity of particle filled epoxy composites. Three-dimensional models, which considered the effect of filler geometry, filler aspect ratio, conductivity ratio of filler to matrix, and interfacial layer were used to simulate the microstructure of epoxy composites for various filler volume fractions up to 30%. The calculated thermal conductivities were compared with results from existing theoretical models and experiments. Numerical estimation of ellipsoids-in-cube model accurately predicted thermal conductivity of epoxy composites with alumina filler particles. The number of length division during mesh process and particle numbers used in the finite element analysis affect the accuracy of calculated results. At a given value of filler content, the numerical results indicated a ratio of conductivity of filler to matrix for achieving the maximum thermal conductivity.

The Simulation of Rolling Process of Wire with Y-Type Roller

2014 ◽  
Vol 602-605 ◽  
pp. 709-712
Author(s):  
Jin Hong Ma ◽  
Bin Tao ◽  
Xiao Han Yao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Rolling Mill ◽  
Three Dimensional ◽  
Rolling Process ◽  
Stress And Strain ◽  
Analysis Software ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Three Dimensional Models

Y-Type rolling mill with three roller is a new kind of wire mill.The three-dimensional models of rolling are established by Pro/E. Based on the finite element analysis software ANSYS/LS-DYNA, the rolling process of wire by Y-type rollers is simulated. The rolling piece movement is analysed. Stress and strain of Y-type roller are also analysed.

Finite Element Analysis for the Working Device of Rough Terrain Forklift

2013 ◽  
Vol 397-400 ◽  
pp. 568-572
Author(s):  
Hong Feng Yan ◽  
Wei Ping Wang ◽  
Xiang Yang Qi ◽  
Hui Xian Zhang ◽  
Tian Tian ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Reference Value ◽  
Rough Terrain ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Three Dimensional Models ◽  
Working Device ◽  
Analysis Models

The paper is to study the working device of rough terrain forklift, carried out forces analysis on a typical three section telescopic boom, results indicated that the boom working in the lowest position is the most dangerous situation, Adopted the CAD software of SolidWorks to build the three dimensional models of telescopic boom, then used the FEA component of SolidWorks Simulation to carried out finite element analysis(FEA) for the working device, obtained FEA results. By the use of comparing the stress testing results with the finite element analysis results, certificated that the finite element analysis models are reasonable and the finite element method by Simulation is feasible and reliable. All of these works have very important reference value for designing and optimization of the telehandler in the future.

The Development of Nozzle Micro-Hole Abrasive Flow Machining Equipment

2010 ◽  
Vol 44-47 ◽  
pp. 251-255 ◽  
Author(s):  
Jun Ye Li ◽  
Wei Na Liu ◽  
Li Feng Yang ◽  
Bin Liu ◽  
Lei Zhao ◽  
...  
Keyword(s):  
Finite Element ◽  
Three Dimensional ◽  
Simulation Software ◽  
Element Analysis ◽  
Abrasive Flow Machining ◽  
Element Simulation ◽  
The Finite Element Analysis ◽  
Micro Hole ◽  
Three Dimensional Models ◽  
The Ideal

Through analysis of abrasive flow machining principle, this paper explores the design of equipment which is suitable for nozzle micro-hole abrasive flow machining. Based on catia，a cad software, three-dimensional models of the parts are drawn and assembled together. Based on the Finite Element Simulation software ansys, the finite element analysis of the key components of the equipment can be achieved. Through the result of simulation, the design of the equipment is reliable, and is able to satisfy the requirements of strength and rigidity. It offers the theoretical basis for optimizing abrasive flow machining equipment. Through the result of tests, the system of the equipment runs steadily and the ideal abrasive flow machining effects can be achieved.

Finite Element Analysis and Stress Testing for Telescopic Boom of Telehandler

2013 ◽  
Vol 321-324 ◽  
pp. 1757-1760 ◽  
Author(s):  
Hong Feng Yan ◽  
Wei Ping Wang ◽  
Zhi Wang ◽  
Hui Xian Zhang ◽  
Hui Zhang ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Testing ◽  
Three Dimensional ◽  
Reference Value ◽  
The Finite Element Method ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Three Dimensional Models ◽  
Analysis Models

The papaer is to study telescopic boom material handler, carried out forces analysis on a typical three section telescopic boom, results indicated that the boom working in horizontal position is the most dangerous situation, Adopted the CAD software of SolidWorks to build the three dimensional models of telescopic boom, then used the FEA component of SolidWorks Simulation to carried out finite element analysis(FEA) respectively for three sections of boom, obtained FEA results. By the use of comparing the stress testing results with the finite element analysis results, certificated that the finite element analysis models are reasonable and the finite element method by Simulation is feasible and reliable. All of these works have very important reference value for designing and optimization of the telehandler in the future.

Finite Element Analysis of Nonuniformity of Tires with Imperfections5

2007 ◽  
Vol 35 (3) ◽  
pp. 226-238 ◽  
Author(s):  
K. M. Jeong ◽  
K. W. Kim ◽  
H. G. Beom ◽  
J. U. Park
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
Radial Force ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Dimensional Finite Element ◽  
Force Variation ◽  
Three Dimensional Finite Element

Abstract The effects of variations in stiffness and geometry on the nonuniformity of tires are investigated by using the finite element analysis. In order to evaluate tire uniformity, a three-dimensional finite element model of the tire with imperfections is developed. This paper considers how imperfections, such as variations in stiffness or geometry and run-out, contribute to detrimental effects on tire nonuniformity. It is found that the radial force variation of a tire with imperfections depends strongly on the geometrical variations of the tire.

Modeling and experimental verification on directivity of an electret cell array loudspeaker

2012 ◽  
Vol 24 (3) ◽  
pp. 326-333 ◽  
Author(s):  
Yu-Chi Chen ◽  
Wen-Ching Ko ◽  
Han-Lung Chen ◽  
Hsu-Ching Liao ◽  
Wen-Jong Wu ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Digital Control System ◽  
Analysis Model ◽  
Cell Array ◽  
Element Analysis ◽  
Finite Element Analysis Model ◽  
The Finite Element Analysis ◽  
Directivity Characteristics

We propose a model to give us a method to investigate the characteristic three-dimensional directivity in an arbitrarily configured flexible electret-based loudspeaker. In recent years, novel electret loudspeakers have attracted much interest due to their being lightweight, paper thin, and possessing excellent mid- to high-frequency responses. Increasing or decreasing the directivity of an electret loudspeaker makes it excellent for adoption to many applications, especially for directing sound to a particular area or specific audio location. Herein, we detail a novel electret loudspeaker that possesses various directivities and is based on various structures of spacers instead of having to use multichannel amplifiers and a complicated digital control system. In order to study the directivity of an electret loudspeaker based on an array structure which can be adopted for various applications, the horizontal and vertical polar directivity characteristics as a function of frequency were simulated by a finite-element analysis model. To validate the finite-element analysis model, the beam pattern of the electret loudspeaker was measured in an anechoic room. Both the simulated and experimental results are detailed in this article to validate the various assertions related to the directivity of electret cell-based smart speakers.

scholarly journals Evaluation of the Effects of the Chincup Appliance on the Craniofacial Structures by the Finite Element Analysis

2017 ◽  
Vol 7 ◽  
pp. 219-223
Author(s):  
Beril Demir Karamanli ◽  
Hülya Kılıçoğlu ◽  
Armagan Fatih Karamanli
Keyword(s):  
Finite Element ◽  
Three Dimensional ◽  
Fe Model ◽  
Analysis Method ◽  
Class Iii ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element ◽  
Clinical Changes

Aims The aim of this study is to evaluate the effects of the chincup appliance used in the treatment of Class III malocclusions, not only on the mandible or temporomandibular joint (TMJ) but also on all the craniofacial structures. Materials and Methods Chincup simulation was performed on a three-dimensional finite element (FE) model. 1000 g (500 g per side) force was applied in the direction of chin-condyle head. Nonlinear FE analysis was used as the numerical analysis method. Results By the application of chincup, stresses were distributed not only on TMJ or mandible but also on the circummaxillary sutures and other craniofacial structures. Conclusions Clinical changes obtained by chincup treatment in Class III malocclusions are not limited by only mandible. It was seen that also further structures were affected.

The Finite-Element Analysis of the Main Frame of the Airborne Photoelectric Platform

2012 ◽  
Vol 562-564 ◽  
pp. 1943-1946
Author(s):  
Yong Hu ◽  
Jin Gan Song ◽  
Qing Zou ◽  
Ke Zhu ◽  
Xiao Long Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Weak Links ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Overall Performance ◽  
Sufficient Strength ◽  
Ansys Workbench ◽  
Main Frame

Because both of the volume and the weight of the photoelectric platform are small, the structure of two frames and two axes is used in the photoelectric platform. As the key component of the photoelectric platform, the main frame should have sufficient strength and rigidity. In order to achieve this object, three-dimensional entity model of the main frame is established using CATIA software. Then the finite-element analysis of the model is finished with ANSYS Workbench. Based on the analysis results, the weak links of the main frame is found. Then these links are improved and the main frame is analyzed again. After improving the structure, the results of the finite-element analysis show that the main frame meets the requirements of design and has perfect overall performance.

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