Numerical Integrator
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Matriz de massa de ordem elevada, dispersão de velocidades e reflexões espúrias / High order mass matrix, velocity dispersion and spurious wave reflection
The main subject of this work is to qualify, quantify and implement the numerical behavior of discrete structures through the finite element method. It will be investigated only the dynamic onedimensional linear elements, but the applicability of the proposed formulation can be extended to the bi and tri-dimensional cases. It begins with an introduction to t
Publicado em: 2008
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2. Improvement of formulation of identification and solution of the bidimensional impact between structure and rigid wall / Aprimoramento de formulação de identificação e solução do impacto bidimensional entre estrutura e anteparo rígido
This work has as main goal the development of a formulation, based on the finite element method (FEM), for the identification and solution of the bidimensional nonlinear impact between reticulated cyclics structures and fixed rigid wall. The dynamic geometrically nonlinear behavior is treated with a positional formulation classified as total Lagrangean with
Publicado em: 2008
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3. IntegraÃÃo de dados de navegaÃÃo de um robà bÃpede
Este trabalho està focado na modelagem matemÃtica e simulaÃÃo de um robà bÃpede. Parte da nossa modelagem matemÃtica visa calcular as posiÃÃes e velocidades de cada ponto do robà bÃpede, em cada instante de tempo, nos seus aspectos cinemÃticos a partir de dados obtidos de sensores inerciais. Neste trabalho essa modelagem foi feita atravÃs da uti
Publicado em: 2008
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4. Desenvolvimento de metodo implicito para simulador numerico tridimensional de escoamentos compressiveis inviscidos
The simulation of compressible flows considered inviscid is largely appliable to aeronautics. The development of such simulations using the Garlekin discontinuous method[7,12,16,20], wich presents the good characteristics of fine element and finite volume methods, benefitting from the polynomial interpolation within subdomains and discontinuous across interf
Publicado em: 2004
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5. Integração das equações diferenciais do filtro digital de Butterworth mediante algoritmo de quadratura numérica de ordem elevada / Integration of the Butterworth digital filters differential equations using numerical algorithm of high order integrator
In this work is presented the development of hermitian algorithm for integration of the Butterworth digital filters differential equations by means of high order numerical one step operators. The Butterworth filters theory is presented based on the Fourier transform. Numerical examples show that the results of the developed hermitian algorithm are more a
Publicado em: 2003
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6. Symplectic integrators revisited
This paper is a survey on Symplectic Integrator Algorithms (SIA): numerical integrators designed for Hamiltonian systems. As it is well known, n degrees of freedom Hamiltonian systems have an important property: their ows preserve not only the total volume of the phase space, which is only one of the Poincaré invariants, but also the volume of sub-spaces le
Brazilian Journal of Physics. Publicado em: 2002-12