Sqp Algorithm
Mostrando 1-12 de 13 artigos, teses e dissertações.
-
1. Optimization of geometrically nonlinear truss structures under dynamic loading
Abstract The goal of this article is to present the formulation of the optimization problem of truss structures with geometric nonlinearity under dynamic loads and provide examples of this problem. The formulated optimization problem aims to determine the cross-sectional area of the bars that minimizes the weight of the structure, imposing constraints on nod
REM, Int. Eng. J.. Publicado em: 2020-09
-
2. A single loop reliability-based design optimization using EPM and MPP-based PSO
A reliability-based design optimization (RBDO) incorporates a probabilistic analysis with an optimization technique to find a best design within a reliable design space. However, the computational cost of an RBDO task is often expensive compared to a deterministic optimization, which is mainly due to the reliability analysis performed inside the optimization
Lat. Am. j. solids struct.. Publicado em: 2014-10
-
3. Comparação de métodos genéticos e SQP para otimização de resposta em frequência em sistemas vibroacústicos
Neste trabalho o autor programa e avalia algoritmos para análise e otimização de pressão sonora desenvolvidos para sistemas acoplados vibroacústicos, verificando o desempenho da análise da resposta e comparando a adequação dos algoritmos de Programação Quadrática Sequencial (SQP - Sequencial Quadratic Programming) e Genético na otimização da re
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
-
4. A filter algorithm for nonlinear semidefinite programming
This paper proposes a filter method for solving nonlinear semidefinite programming problems. Our method extends to this setting the filter SQP (sequential quadratic programming) algorithm, recently introduced for solving nonlinear programming problems, obtaining the respective global convergence results. Mathematical subject classification: 90C30, 90C55.
Computational & Applied Mathematics. Publicado em: 2010-06
-
5. A filter SQP algorithm without a feasibility restoration phase
In this paper we present a filter sequential quadratic programming (SQP) algorithm for solving constrained optimization problems. This algorithm is based on the modified quadratic programming (QP) subproblem proposed by Burke and Han, and it can avoid the infeasibility of the QP subproblem at each iteration. Compared with other filter SQP algorithms, our alg
Computational & Applied Mathematics. Publicado em: 2009
-
6. Alternative fuels mixture in cement industry kilns employing Particle Swarm Optimization algorithm
Most of the works accomplished in the optimization area in the cement industry are addressed to solve problems just considering only one variable, forgetting that it includes too many variables and they act at the same time. Among the main variables it can be mentioned the quality of the final product, the environmental ones, the costs along the process and
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2008-12
-
7. Polyethylene resins development through optimization methods / Desenvolvimento de resinas de polietileno linear atraves de metodos de otimização
Para o desenvolvimento de novas resinas poliméricas ou para a melhoria da qualidade de resinas já existentes, usualmente realizam-se experimentos em escala industrial ou em planta piloto. Entretanto, tais práticas são altamente imprecisas, demoradas, caras e levam à formação de produtos fora de especificação. Ferramentas baseadas em modelos matemát
Publicado em: 2008
-
8. RELIABILITY-BASED DESIGN OPTIMIZATION OF REINFORCED CONCRETE PLANE FRAMES / PROJETO ÓTIMO BASEADO EM CONFIABILIDADE DE PÓRTICOS PLANOS DE CONCRETO ARMADO
This work compares the Deterministic Design Optimization (DDO) with the Reliability-Based Design Optimization (RBDO) of reinforced concrete plane frames. The structure is modeled by a finite element mesh using bar elements and considering both geometric and material nonlinearities. In the formulation of the proposed optimization problem the design variables
Publicado em: 2008
-
9. Simulação e otimização de reator de formaldeido, processo prata, usando tecnicas de inteligencia artificial / Simulation and optimization of silver formaldehyde reactor, using artificial intelligence techniques
The focus of this Thesis is the simulation and optimization of a silver catalyzed fixed-bed reactor for the oxidation of methanol to formaldehyde, using artificial intelligence techniques (genetic algorithm and artificial neural networks). Formaldehyde is a key chemical intermediate used mainly in the production of adhesives and resins for several market seg
Publicado em: 2007
-
10. Controle e otimização em tempo real de um reator trifasico / Real time optimization and control-three-phase slurry reactor
The principal objective of this work was the evaluation of classic and hierarchical control strategies in real time. It was used as case study the o-cresol hydrogenation in a three-phase slurry reactor with solid catalyst to validate the real time optimization approaches, due to the inherent importance of this process, since these reactors are present in man
Publicado em: 2006
-
11. Modelagem e otimização do processo de liofilização : aplicação para leite desnatado e cafe soluve
Freeze drying is a separation process based on the sublimation phenomenon. This process has the following advantages compared to the conventional drying process: the material structure is maintained, moisture is removed at low temperature (reduced transport rates), product stability during storage is increased, the fast transition from moisturized product to
Publicado em: 2004
-
12. OTIMIZAÇÃO DE CASCAS SUBMETIDAS A CARREGAMENTO DINÂMICO / OPTIMIZACIÓN DE CASCAS SOMETIDAS A SOBRECARGA DINÁMICA / OPTIMIZATION OF SHELL STRUCTURES UNDER DYNAMIC LOADS
The main goal of this work is to present a methodology and a computer code which allow the designer, by means of optimization techniques, to obtain efficient shapes of plate and shell structures under linear-elastic behavior and dynamic loads. With this objective, it is used the optimization program SHELLD that includes the geometric modeling, the mesh gener
Publicado em: 2000