Results 1 to 10 of about 34,897 (164)

Spectral Stochastic Finite Element Method for Electromagnetic Problems with Random Geometry [PDF]

open access: yesElectrical, Control and Communication Engineering, 2014
In electromagnetic problems, the problem geometry may not always be exactly known. One example of such a case is a rotating machine with random-wound windings.
Lehikoinen Antti
doaj   +3 more sources

Application of randomized quadrature formulas to the finite element method for elliptic equations. [PDF]

open access: yesBIT Numer Math
Abstract The implementation of the finite element method for linear elliptic equations requires to assemble the stiffness matrix and the load vector. In general, the entries of this matrix-vector system are not known explicitly but need to be approximated by quadrature rules.
Kruse R, Polydorides N, Wu Y.
europepmc   +6 more sources

Performance analysis of buffer and vibration isolation lining for red wine transport packaging

open access: yesShipin yu jixie, 2023
Objective: In this study, the finite element simulation was integrated into random vibration experiment to provide a new way of thinking about transportation packaging.
WANG Cheng-wei   +3 more
doaj   +1 more source

Randomized Oversampling for Generalized Multiscale Finite Element Methods [PDF]

open access: yesMultiscale Modeling & Simulation, 2016
In this paper, we study the development of efficient multiscale methods for flows in heterogeneous media. Our approach uses the Generalized Multiscale Finite Element (GMsFEM) framework. The main idea of GMsFEM is to approximate the solution space locally using a few multiscale basis functions.
Victor M. Calo   +3 more
openaire   +5 more sources

Fuzzy finite element analysis based on the transformation between fuzzy and random variables

open access: yesVietnam Journal of Science, Technology and Engineering, 2022
In this paper, a fuzzy finite element method (FFEM) for determining the responses of structures is proposed by using the transformation between fuzzy and random variables.
Tuan Hung Nguyen, Huynh Xuan Le
doaj   +1 more source

Random Vibration Fatigue Life Analysis of Airborne Electrical Control Box

open access: yesApplied Sciences, 2022
To study the influence of random vibration on the fatigue life of airborne equipment, an aircraft electrical control box was selected as the research object. First, finite element software was used to model the dynamics of the airborne electrical control
Daqian Zhang, Yueyang Chen
doaj   +1 more source

Stochastic Finite Element Analysis of Plate Structures Considering Spatial Parameter Random Fields

open access: yesMathematics, 2023
For plate structures, their random parameters can be regarded as a two-dimensional random field in the plane. To solve the plate theory considering a two-dimensional random field, an efficient strategy for the stochastic finite element method was adopted.
Yan Yang, Fang-Wen Ge, Xiang Liu
doaj   +1 more source

Using porous random fields to predict the elastic modulus of unoxidized and oxidized superfine graphite

open access: yesMaterials & Design, 2022
Nuclear graphite is a candidate material for Generation IV nuclear power plants. Porous materials such as graphite can contain complex networks of pores that influence the material's mechanical and irradiation response.
José David Arregui-Mena   +9 more
doaj   +1 more source

Evolving Surface Finite Element Methods for Random Advection-Diffusion Equations [PDF]

open access: yesSIAM/ASA Journal on Uncertainty Quantification, 2018
In this paper, we introduce and analyse a surface finite element discretization of advection-diffusion equations with uncertain coefficients on evolving hypersurfaces. After stating unique solvability of the resulting semi-discrete problem, we prove optimal error bounds for the semi-discrete solution and Monte Carlo samplings of its expectation in ...
Ana Djurdjevac   +3 more
openaire   +5 more sources

The Vibration Analysis Based on Experimental and Finite Element Modeling for Investigating the Effect of a Multi-Notch Location of a Steel Plate

open access: yesApplied Sciences, 2023
Vibration is challenging and significant in solving engineering problems. The issue of vibration in loaded objects by utilizing a three-dimensional model and experiments.
Kritchanan Charoensuk   +1 more
doaj   +1 more source

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