Parametrization And Optimization
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Optimization study of airfoil performance using genetic algorithms / Otimização de desempenho de aerofólios supercríticos: uma abordagem baseada em algoritmos genéticos
The objective of present study is analyze the multi-objective optimization applied to transonic airfoils project comparing different ways to define the objective functions. The optimization is evaluated by the genetic algorithm NSGA-II. The results is analyzed using metrics of diversity and optimality for multi-objective problems, which two are proposed. The
Publicado em: 2009
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2. Incorporação quantitativa de dados de sismica 4D no processo de ajuste de historico / Quantitative incorporation of seismic 4D in history matching process
Good decision making related to oilfield management depends on reliability of production forecast which demands calibrated reservoir simulation models. Due to the complexity of the production history matching process, there are many models with reasonable match but, many times, with different forecasts, mainly due to important heterogeneities that are not ob
Publicado em: 2009
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3. A Influência da parametrização dos softwares CADD arquiteturais no processo de projetação arquietônica
Answering to the current market and construction industry agents (professionals, clients, businessmen, etc.) demands, several authors and software salesmen have been suggesting the optimization (of time, cost, quality and integration) of the current architectural project process, from the use of Architectural Parametric CADD (Computer Aided Design and Drafti
Publicado em: 2008
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4. Parametrization and numerical simulation of the hidrokinetic turbine-otimization using genetics algorithm / Parametrização e simulação numérica da turbina hidrocinética - otimização via algoritmos genéticos
The rotor is the part of the hydrokinetic system whose configuration characteristics are essential due to its influence on the global efficiency of the system. The definition of the blade runner that adapts to the imposed working conditions, increasing the power, is an important factor to be optimized in a hydrokinetic turbine (HKT). In order to make the opt
Publicado em: 2007
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5. Convex formularizations for robust H2 control problems relative to non-parametric pertubations / Formulações convexas para problemas de controle H2 - robusto relativo a pertubações não-paramétricas
In this work, performance analysis and control synthesis for good performance are studied for systems subject to non-parametric perturbations which satisfy a prescribed norm bound. First, the performance analysis problem is considered for a given controller that ensures robust stability in presence of such perturbations.. The performance index used is the so
Publicado em: 2006
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6. Estudo de robustez em sistemas lineares por meio de relaxações em termos de desigualdades matriciais lineares / Robustness of linear systems by means of linear matrix inequalities relaxations
This thesis proposes, as main contribution, a new methodology to solve parameterdependent linear matrix inequalities which frequently appear in robust analysis and control problems of linear system with polytopic uncertainties. The proposed method relies on the parametrization of the solutions in terms of homogeneous polynomials of arbitrary degree with matr
Publicado em: 2006
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7. Modelagem paramétrica de pórticos rolantes: estabilidade estrutural e otimização. / Gantry cranes parametric modeling: structural stability and optimization.
The objective of this work is to develop a tool to generate an automatic structural design of gantry cranes. With an automatic generation of finite element models and also a design report, this routine allows a fast verification against yield of material and structural instability. The use of the finite element method was chosen for the structural design bec
Publicado em: 2005
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8. High-energy proton-proton forward scattering and derivative analyticity relations
We present the results of several parametrizations to two different ensemble of data on pp total cross sections (s) at the highest center-of-mass energies (including cosmic-ray information). The results are statistically consistent with two distinct scenarios at high energies. From one
Brazilian Journal of Physics. Publicado em: 2001-12