Non Linear Constrained Optimization
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Sobre minimização de quadraticas em caixas / About box constrained quadratic minimization
Neste trabalho o objetivo principal foi a minimização de quadráticas em caixas. Dissertamos sobre os métodos de máxima descida e dos gradientes conjugados, bem como sobre um método mais recente denominado gradiente espectral. O GENCAN, um algoritmo que minimiza funções em caixas, foi estudado em detalhe, particularmente avaliando sua aplicação para
Publicado em: 2007
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2. Kinematical modeling and optimal design of a biped robot joint parallel linkage
This paper shows the design and analysis of a parallel three-dimensional linkage, conceived to work as the ankle and hip joints of an anthropometric biped robot. This kind of mechanism architecture provides low-weight, highly stable assemblies, and allows the use of actuator synergies. On the other hand, the mechanical transmission ratio is not usually favor
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2006-12
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3. Identificação de sistemas "on-line", otimização e controle avançado com o filtro de Kalman estendido / On line system identification, advanced control and optimization with the (Extended) Kalman filter
In the continuing competition between it will be more and more necessary to optimize current chemical processes in real time. To be able to optimize a plant in real time, there have to be various aspects to be fulfilled, such as measurement, reliability of the measurement and prediction of the process behaviour. In this work some of the aspects of such an ad
Publicado em: 2006
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4. Metodo de continuação baseado em programação matematica na mecanica estrutural não-linear
Non-linear problems in structural mechanics in general require the use of solution methods that control the displacements and the load leveI simultaneously. One of the most popular method used in these cases is the arc-length method. The arc-length method introduces one additional constraint equation to the non-linear equilibrium equations of the problem. Th
Publicado em: 2004
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5. Contact with friction using the augmented Lagrangian Method: a conditional constrained minimization problem
This work presents a formulation of the contact with friction between elastic bodies. This is a non linear problem due to unilateral constraints (inter-penetration of bodies) and friction. The solution of this problem can be found using optimization concepts, modelling the problem as a constrained minimization problem. The Finite Element Method is used to co
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2000