Computer-aided design of high-frequency electromagnetic devices using the finite-element method

1986 ◽  
Vol 3 (5) ◽  
pp. 185
Author(s):  
J.P. Webb
Author(s):  
Shiro Kobayashi ◽  
Soo-Ik Oh ◽  
Taylan Altan

The application of computer-aided design and manufacturing techniques is becoming essential in modern metal-forming technology. Thus process modeling for the determination of deformation mechanics has been a major concern in research . In light of these developments, the finite element method--a technique by which an object is decomposed into pieces and treated as isolated, interacting sections--has steadily assumed increased importance. This volume addresses advances in modern metal-forming technology, computer-aided design and engineering, and the finite element method.


1990 ◽  
Vol 63 (3) ◽  
pp. 368-406 ◽  
Author(s):  
David W. Nicholson ◽  
Norman W. Nelson

Abstract The application of finite-element analysis in rubber technology has been discussed. The intent has been to combine features of a tutorial, an exposition, and a survey. Attention has been limited to homogeneous cured rubber products. The finite-element method is a prime constituent of computer-aided engineering, and, as such, it is a powerful resource for the design and analysis of rubber components. Owing to rapid progress and greater availability of computer hardware and software and, in particular, computer-aided design systems, finite-element analysis is eminently practical. Difficulties such as incompressibility and large deformation, the subjects of a substantial literature, appear to have been successfully addressed. Finite-element analyses of rubber products such as seals and bearings have been published widely, often along with experimental validation. However, note that the implementation of the hyperelastic element in major codes has occurred recently. And, at the time of this review, in several codes, the elements are still quite limited, for example, to plane strain. Thus, it appears that rubber technology has yet to see the full impact of the finite-element method.


2021 ◽  
Vol 21 (1) ◽  
pp. 71-81
Author(s):  
E. V. Koleda ◽  
S. O. Kireev ◽  
M. V. Korchagina ◽  
A. V. Efimov ◽  
J. Sperling

Introduction. The relevance of the presented paper is due to the widespread use of plunger pumps in industrial practice, in particular, in gas and oil production. The quality of working operations and the efficiency of further well operation depend largely on their reliability. The improvement of plunger pumps involves increasing their reliability, increasing their service life, efficiency, downsizing, reduction in weight, labor intensity of installation and repair work. The modernization of the mechanism includes its power study since the found forces are used for subsequent strengthcalculations. Before the appearance of programs for the numerical analysis of solid objects, the analytical solution to theproblem of strength calculation of the high-pressure pump drive frame was a very time-consuming and expensiveprocedure. The situation has changed with the development of computer technologies and the inclusion of the finite element method in the computer-aided design systems. The objective of this work is to perform a strength calculationon the TWS 600 plunger pump body made of 09G2S steel. Materials and Methods. A method for determining the reactions of the crank shaft supports of a high-pressure plungerpump and strength calculation of the drive part housing is developed. The direction and magnitude of the resultingforces and reactions of the supports are determined graphically according to the superposition principle of the forceaction on the supports. Strength calculations were performed using the finite element method in the computer-aided design system Solid Works Simulation. In this case, solid and finite-element models of the body with imposed boundary conditions were used, which were identified during the analysis of the design and the calculation of the forces arising under the pump operation.Results. The reactions in the crankshaft supports are described with account for the forces generated by the plungerdepending on its operating mode and the crank position. The forces acting on each of the plungers and the resultingreactions in each of the supports are determined. The diagrams of stresses and the safety factor are presented, whichprovide assessing the strength of the body and developing recommendations for creating a more rational design.Discussion and Conclusions. As a result of the calculations, we have identified areas of the structure with minimumsafety factors, and areas that are several times higher than the recommended values. This provides optimizing the designunder study through strengthening the first and reducing the thickness of the metal on the second. From the point ofview of weight and size characteristics and maintainability, the results of the strength calculation performed can be used to optimize the design of the pump body under typical operating conditions.


2014 ◽  
Vol 707 ◽  
pp. 397-400 ◽  
Author(s):  
Xiao Hong Liu ◽  
Yan Yu ◽  
Li Chun Qiu

This article introduced the up-to-date research progress on the tool-soil interacting problem of tillage; and investigated the situation of constitutive relation usage in the finite element method (FEM). A review including the dynamic effect on the performance of tillage operation with FEM has been conducted. It showed that the virtual reality method with FEM had made much progress in evaluating the tool draft, distribution position of stress and strain, displacement fields and acceleration in soil-tool interactions, soft ware package of computer aided design of tillage tools; it will be a low cost and high efficiency assistive tool in the development procedure of tillage tools, and can be applied to study and analyze the performance of resulting prototypes.


Sign in / Sign up

Export Citation Format

Share Document