Meshless Methods
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Meshless Methods for Computation of Overhead Transmission Lines Electromagnetic Fields
Abstract The meshless element-free Galerkin method (EFGM) is used to solve partial differential equations responsible for obtaining the electromagnetic fields generated by a transmission line. For this purpose, a 2D model based in a real transmission line is constructed and simulated. The results obtained by EFGM have good accuracy and they are compared agai
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2021-06
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2. Two-dimensional beams in rectangular coordinates using the radial point interpolation method
Abstract The three-dimensional Theory of Elasticity equations lead to a complex solution for most problems in engineering. Therefore, the solutions are typically developed for reduced systems, usually symmetrical or two-dimensional. In this context, computational resources allow the reduction of these simplifications. The most recognized methods of algebraic
REM, Int. Eng. J.. Publicado em: 2020-03
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3. Safety and short term outcomes of a new truly minimally-invasive mesh-less and dissection-less anchoring system for pelvic organ prolapse apical repair
ABSTRACT Objective To evaluate the safety and short term outcomes of a new, truly minimally-invasive, mesh-less and dissection-less anchoring system for pelvic floor apical repair. Methods A prospective study was conducted using the NeuGuide™ device system for pelvic floor apical repair. The primary effectiveness outcome was centro-apical pelvic floor
Int. braz j urol.. Publicado em: 2017-06
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4. Development of a computational instrument using a lagrangian particle method for physics teaching in the areas of fluid dynamics and transport phenomena
Abstract Particle methods are an alternative to the traditional mesh Eulerian methods for solution of fluid dynamics and transport phenomena problems. The Lagrangian Meshless Smoothed Particle Hydrodynamics (SPH) method presents advantages compared to mesh methods as a better visualisation of the spatio-temporal evolution of the flow (and the fluid propertie
Rev. Bras. Ensino Fís.. Publicado em: 27/04/2017
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5. Point interpolation methods based on weakened-weak formulations
This paper presents a study of meshless Point Interpolation Methods based on weakened-weak forms. The mathematical formulations of the methods are presented as well as the procedures for the support nodes selection called T-schemes. The numerical results are shown for four different types of electromagnetic static problems in order to ponctuate the character
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2013-12
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6. Modelagem de dispositivos eletromagnéticos através de métodos sem malha / Electromagnetic devices modeled by Meshless methods
Métodos sem malha constituem uma classe de métodos numéricos usualmente aplicados na solução de equações diferenciais parciais (PDE). A principal característica destes métodos é que os mesmos não necessitam de uma malha como a usada nos métodos de elementos finitos. Esta característica pode ser bastante útil quando se esta modelando estruturas
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/10/2011
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7. Análise linear de cascas com Método de Galerkin Livre de Elementos. / Linear analysis of shells with the Element-free Galerkin Method.
O Método dos Elementos Finitos é a forma mais difundida de análise estrutural numérica, com aplicações nas mais diversas teorias estruturais. Contudo, no estudo das cascas e alguns outros usos, suas deficiências impulsionaram a pesquisa em outros métodos de resolução de Equações Diferenciais Parciais. O presente trabalho utiliza uma dessas altern
Publicado em: 2010
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8. Computational animation of fluid flow using SPH / Animação computacional de escoamento de fluidos utilizando o método SPH
Since the late 70s, there is a growing interest in physically-based simulations due to its increasing range of application. Among these simulations, we may highlight interaction between rigid, elastic, plastic and breakable bodies and also fluids. In this work, one of these phenomena, fluid flow, is simulated using a technique known as Smoothed Particle Hydr
Publicado em: 2008
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9. Least squares and point-based surfaces: new perspectives and Applications / Minimos-quadrados e aproximação de superfície de pontos: novas perspectivas e aplicações
Surface reconstruction from unorganized points has been one of the most promising scientific research areas in Computer Graphics. In addition, it has been used successfully for the definition of fluid interface in numerical simulation of fluid flow. There are several reasons to that fact: for instance, considering Computer Graphics, we have the handling of o
Publicado em: 2008
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10. UM MÉTODO ROBUSTO DE ELEMENTOS FINITOS GENERALIZADOS APLICADO À MECÂNICA DA FRATURA / A ROBUST GENERALIZED FINITE ELEMENT METHOD APPLIED TO FRACTURE MECHANICS
The Finite Element Method is certainly the most generally used technique for the solution of Engineering problems. However, there are some classes of problems in which the method is still not straightly applicable. One of those is related to the simulation of problems with moveable geometry and/or boundary conditions, in the field of Computation Mechanics. T
Publicado em: 2004
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11. Métodos sem malha e método dos elementos finitos generalizados em análise não-linear de estruturas / Meshless Methods and Generalized Finite Element Method in Structural Nonlinear Analysis
The Generalized Finite Element Method, GFEM, shares several features with the so called meshless methods. The approximation functions used in the GFEM are associated with nodal points like in meshless methods. In addition, the enrichment of the approximation spaces can be done in the same fashion as in the meshless hp-Cloud method. On the other hand, the par
Publicado em: 2002