Penalty Function
Mostrando 1-12 de 37 artigos, teses e dissertações.
-
1. Obtención de aceros de baja aleación con diferentes contenidos de Ni y similares microestructuras y propiedades mecánicas
ABSTRACT Low alloy steels are used in many applications in the oil and gas industry. The addition of Ni in these steels improves their low temperature fracture toughness and hardenability, with a low penalty on weldability. However, ISO 15156-2 standard restricts Ni content up to a 1 wt% limit, requiring additional and expensive tests if higher Ni steels are
Matéria (Rio J.). Publicado em: 19/07/2018
-
2. Parametric Model Method and Deployment Simulation of Inflatable Antenna Structures
ABSTRACT: In this paper, we develop a parametric model method and simulate the deployment mechanism of inflatable antenna structures. Different folded methods are developed for the primary members of inflatable antenna structures, which include inflatable tubes, an inflatable torus, a reflector etc. The unstressed configuration and the folded configuration o
J. Aerosp. Technol. Manag.. Publicado em: 2015-06
-
3. Flexural behavior of general laminated composite and sandwich plates using a secant function based shear deformation theory
A secant function based shear deformable finite element model is developed for the flexural behavior of laminated composite and sandwich plates with various conditions. The structural kinematics of the plate is expressed by means of secant function based shear deformation theory newly developed by the authors. The theory possesses non-linear shear deformatio
Lat. Am. j. solids struct.. Publicado em: 2014-12
-
4. A Review of Gradient Algorithms for Numerical Computation of Optimal Trajectories
Abstract: In this paper, two classic direct methods for numerical computation of optimal trajectories were revisited: the steepest descent method and the direct one based upon the second variation theory. The steepest descent method was developed for a Mayer problem of optimal control, with free final state and fixed terminal times. Terminal constraints on t
J. Aerosp. Technol. Manag.. Publicado em: 2012-06
-
5. A new double trust regions SQP method without a penalty function or a filter
A new trust-region SQP method for equality constrained optimization is considered. This method avoids using a penalty function or a filter, and yet can be globally convergent to first-order critical points under some reasonable assumptions. Each SQP step is composed of a normal step and a tangential step for which different trust regions are applied in the s
Comput. Appl. Math.. Publicado em: 2012
-
6. A pontencialidade educativa da pena de prestação de serviços à comunidade
Este trabalho objetiva constatar se a pena de prestação de serviços à comunidade, quando aplicada, tem um papel educativo junto ao infrator beneficiário da medida, seja como substituta da pena privativa de liberdade, após a condenação, seja como medida alternativa, após transação penal em sede do Juizado Especial Criminal. Com base no conceito de
Publicado em: 2012
-
7. Controle ótimo por modos deslizantes via função penalidade / Optimal sliding mode control approach penalty function
Este trabalho aborda o problema de controle ótimo por modos deslizantes via função penalidade para sistemas de tempo discreto. Para resolver este problema será desenvolvido uma estrutura matricial alternativa baseada no problema de mínimos quadrados ponderados e funções penalidade. A partir desta nova formulação é possível obter a lei de controle
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/07/2011
-
8. Controle preditivo de horizonte infinito para sistemas integradores e com tempo morto. / Model predictive control of integrating systems with dead time.
Model Predictive Control (MPC) has gained wide acceptance in chemical industry in the last 30 years. The basic principle of this technique is to use a model to calculate plants future behavior based on the inputs it would receive in the next sampling periods. It must be set an objective, mainly composed of some measure of the distance between plants predicte
Publicado em: 2011
-
9. Recursive robust regulator for discrete-time state-space systems / Regulador robusto recursivo para sistemas lineares de tempo discreto no espaço de estado
This dissertation deals with robust recursive regulators for discrete-time systems subject to parametric uncertainties. A new quadratic functional based on the combination of penalty functions and game theory is proposed to solve this class of problems. An important issue of this approach is that the recursiveness can be performed without the need of adjusti
Publicado em: 2009
-
10. Real-time optimization of water supply system operation / Otimização energética em tempo real da operação de sistemas de abastecimento de água
This work presents a computational model for real-time optimization of water-distribution networks operation. An integrated software tool has been developed which is composed of three main modules: (i) a hydraulic simulator that performs the extended period simulation of the system (EPANET); (ii) a short-term demand-forecasting model, based on the moving Fou
Publicado em: 2009
-
11. Medidas provisórias: os efeitos não antecipados da EC 32 nas relações entre Executivo e Legislativo / Provisional measures: the unanticipated effects of EC 32 in the relations between the Executive and Legislative
This dissertation focuses on the Constitutional Amendment n.32 of 2001, which regulates the use of provisional measures (the Brazilian president´s executive decrees) and sets material limits on its content and more rigorous proceedings. Among its main rules were the prohibition of decree re-issuances and the establishment of a 45-day period for provisional
Publicado em: 2009
-
12. Cláusula penal e o código civil de 2002
The main purpose of this paper is to evidence the need to overrule the unitary theory of the penalty clause, which is the one adopted by the traditional doctrine and according to which the institute has the nature of a liquidated damages clause, regardless of the intent of the parties upon its creation, being any compulsory effect merely secondary. In order
Publicado em: 2008