A coupling method of the superconducting devices modeled by finite element method with the lumped parameters electrical circuit

2021 ◽  
Vol 34 (4) ◽  
pp. 045014
Author(s):  
G dos Santos ◽  
F G R Martins ◽  
F Sass ◽  
D H N Dias ◽  
G G Sotelo ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Superconducting Devices ◽  
Electrical Circuit ◽  
Coupling Method ◽  
Lumped Parameters ◽  
Element Method

3-D modeling of thin wire and thin plate using finite element method and electrical circuit equation

2001 ◽  
Vol 37 (5) ◽  
pp. 3238-3241 ◽  
Author(s):  
A. Abakar ◽  
J.L. Coulomb ◽  
G. Meunier ◽  
F.-X. Zgainski ◽  
C. Guerin
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Thin Plate ◽  
Electrical Circuit ◽  
Thin Wire ◽  
Element Method

Study on Impedance Calculation of Viscoelastic Material in Acoustic Tube

2013 ◽  
Vol 652-654 ◽  
pp. 1420-1426
Author(s):  
Zhong Kun Jin ◽  
Tong Qing Wang ◽  
Ming Sui Yang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Acoustic Field ◽  
Viscoelastic Material ◽  
Acoustic Impedance ◽  
Coupling Method ◽  
Fluid Structure ◽  
Calculation Results ◽  
Impedance Calculation ◽  
Element Method

The validated finite element method (FEM) was applied to the calculation of local impedance of viscoelastic sample in the acoustic tube. The acoustic impedance of viscoelastic material was calculated by three methods on the basis of numerical acoustic field computed by fluid-structure coupling method and the structure itself. The comparisons of calculation results illustrate that acoustic impedance is the inherent attribute of material.

A direct coupling method of meshless local petrov-galerkin (MLPG) and finite element method (FEM)1

2016 ◽  
Vol 51 (1) ◽  
pp. 51-59 ◽  
Author(s):  
Zehui Liu ◽  
Ming Lu ◽  
Qing Li ◽  
Zhongbin Lv ◽  
Afei Chang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Direct Coupling ◽  
Coupling Method ◽  
Element Method

Topology optimization of structures with coupled finite element – Element-free Galerkin method

2017 ◽  
Vol 232 (5) ◽  
pp. 731-745 ◽  
Author(s):  
Yaqing Zhang ◽  
Wenjie Ge ◽  
Xinxing Tong ◽  
Min Ye
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Topology Optimization ◽  
Level Density ◽  
Coupling Method ◽  
Benchmark Problems ◽  
Convergence Criterion ◽  
Displacement Boundary ◽  
Energy Convergence ◽  
Element Method

A topology optimization, based on a coupling method of finite element and meshless method, is proposed for continuum structure. A reasonable arrangement of the meshless domain can guarantee the accuracy of the meshless methods and meanwhile keep the computational efficiency of the finite element method. Besides, as the coupling method is adopted, the displacement boundary conditions are applied to finite elements nodes by standard finite element method. A dual-level density approximant is carried out to approximate and interpolate a unified and continuous density field. An unstable nodes phenomenon is observed in the interface domain, leading to nonconvergence of the equilibrium iterations. A smooth blending function and an energy convergence criterion are used to circumvent the convergent difficulty. Three benchmark problems of topology optimization are given to demonstrate the effectiveness of the proposed approach. Neither “islanding” phenomenon nor other common numerical instabilities of the SIMP method occur in this approach.

Finite/Explicit Finite Element - Finite Difference Coupling Method for Analysis of Soil - Foundation System

2013 ◽  
Vol 838-841 ◽  
pp. 913-917 ◽  
Author(s):  
Hui Tang ◽  
Xiao Jun Li ◽  
Guo Liang Zhou ◽  
Chun Ming Zhang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Finite Difference ◽  
Finite Difference Method ◽  
Difference Method ◽  
Coupling Method ◽  
Explicit Finite Element ◽  
Coupling Methods ◽  
Soil Foundation ◽  
Element Method

There are some coupling methods based on Finite Element Method and some other numerical methods, such as Infinite Element Method, Boundary Element Method, Finite Difference Method, etc. But these methods have their own limitations on simulation the foundation. For overcome these disadvantages, a coupling method is presented in this paper, which be proposed to analyze the effect of soil - foundation on seismic response of structures. In this coupling method, the structure and the surrounding soil are simulated with Finite Element method, and the other part of the soil with Explicit Finite Element - Finite Difference Method. Compared to other coupling methods, it is more flexible and its calculation amount is acceptable. The accuracy and effectiveness of the coupling method have been verified through Numerical experiment in this paper.

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