2011
DOI: 10.5540/tema.2011.012.02.0111
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Soluções de Problemas envolvendo Equações Diferenciais Sujeitas a Incertezas

Abstract: Resumo. Este trabalho objetiva analisar, através de alguns exemplos, a influên-cia de se considerar aleatoriedades na solução de equações diferenciais com dados e/ou parâmetros aleatórios. Um comparativo das médias das soluções das equações estocásticas com as soluções das equações determinísticas simplificadas, nas quais substituímos os parâmetros aleatórios por suas médias, é apresentado. Estes exemplos mostram que a média da solução, que normalmente é uma informação relevante em aplicações, pode ser qualita… Show more

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“…The probability theory can be applied to understand and quantify how these uncertainties impact these quantities or functions. When probability models are coupled as parameters in the differential equations that represent a physical problem of interest, the complete model is ruled by a stochastic differential equation (Dorini et al, 2011). Some examples using the probability theory to study the safety level of steel structures can be found in Beck & Doria (2008) and Zhao et al (2011).…”
Section: Introductionmentioning
confidence: 99%
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“…The probability theory can be applied to understand and quantify how these uncertainties impact these quantities or functions. When probability models are coupled as parameters in the differential equations that represent a physical problem of interest, the complete model is ruled by a stochastic differential equation (Dorini et al, 2011). Some examples using the probability theory to study the safety level of steel structures can be found in Beck & Doria (2008) and Zhao et al (2011).…”
Section: Introductionmentioning
confidence: 99%
“…That way, in a given scenario, non-deterministic variables are transformed into a probability function that describes stresses and strain in a structure. According to Dorini et al (2011), two methods are available to solve stochastic differential equations:…”
Section: Introductionmentioning
confidence: 99%
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