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Type: Artigo
Title: Modified routine for decreasing numeric oscillations at associations of lumped elements
Author: Prado, Afonso José do
Lessa, Leonardo da Silva
Monzani, Rafael Cuerda
Bovolato, Luiz Fernando
Pissolato Filho, José
Abstract: Some changes in the application of the numeric trapezoidal integration are analyzed for applications considering pi circuits. It is considered numeric and computational proceedings for improving the numeric results obtained with associations of pi circuits. In numeric integration solutions of the linear systems, it is common to represent these associations of pi circuits by only one matrix. This representation introduces undesirable numeric oscillations in simulations of the dynamics of wave propagation in electrical systems. The proposed changes improve the results of application of cascades of pi circuits associated to the trapezoidal integration, avoiding that the numerical oscillations, or Gibb's oscillations, have high values and are slowly damped. For the carried out simulations, different number of pi circuits and voltage sources are checked, confirming the reduction of the influence of the numeric oscillations on the obtained results
Subject: Análise numérica
Sistemas lineares
Country: Países Baixos
Editor: Elsevier
Rights: Fechado
Identifier DOI: 10.1016/j.epsr.2014.03.006
Date Issue: 2014
Appears in Collections:FEEC - Artigos e Outros Documentos

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