Rbdo
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. 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
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2. Reliability-based design optimization strategies based on FORM: a review
In deterministic optimization, the uncertainties of the structural system (i.e. dimension, model, material, loads, etc) are not explicitly taken into account. Hence, resulting optimal solutions may lead to reduced reliability levels. The objective of reliability based design optimization (RBDO) is to optimize structures guaranteeing that a minimum level of r
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012-12
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3. Development of mechanical, reliability and optimization models for application in reinforced concrete structures / Desenvolvimento de modelos mecânicos, de confiabilidade e de otimização para aplicação em estruturas de concreto armado
This work presents some developments in the mechanical modeling of reinforced concrete bar structures, as well in the coupling of reliability and RBDO optimization models, with the purpose of obtaining optimal dimensions considering the safety requirements specified in design. As for the mechanical modeling via Finite Element Method (FEM), in addition to geo
Publicado em: 2010
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4. On the effects of uncertainty on optimum structural design / Estudo do efeito de incertezas na otimização estrutural
In this study the effects of uncertainty on optimum structural design are investigated, by comparing three distinct formulations of a structural optimization problem. Such effects can be quantified in terms of failure probabilities and risk, or expected costs of failure. Deterministic Design Optimization (DDO) allows one the find the shape or configuration o
Publicado em: 2010
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5. 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