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Topology optimization of structures: a minimum weight approach with stress constraints
(Elsevier, 2004)
Sizing and shape structural optimization problems are normally stated in terms of
a minimum weight approach with constraints that limit the maximum allowable
stresses and displacements.
However, topology structural ...
¿Son fiables los métodos convencionales para el cálculo de redes de puesta a tierra?
(2004)
[Resumen] Para diseñar una toma de tierra es preciso calcular su resistencia equivalente y la distribución de potencial en la superficie del terreno durante una derivación de corriente [1, 2, 3]. Para elllo las normas sólo ...
Finite volume solvers and moving least-squares approximations for the compressible Navier-Stokes equations on unstructured grids
(Elsevier, 2005)
[Abstract] This paper introduces the use of Moving Least-Squares (MLS) approximations for
the development of high order upwind schemes on unstructured grids, applied to
the numerical solution of the compressible Navier-Stokes ...
On the Galerkin formulation of the smoothed particle hydrodynamics method
(John Wiley and Sons, 2004)
[Abstract] In this paper, we propose a Galerkin-based smoothed particle hydrodynamics (SPH) formulation with
moving least-squares meshless approximation, applied to free surface flows. The Galerkin scheme
provides a clear ...
Numerical modelling for grounding grids in high-performance parallel computers
(WIT, 2000)
[Abstract] The design of safe grounding systems in electrical installations is essential to assure the security of the persons, the protection of the equipment and the continuity of the power supply [1,2]. In order to ...
Minimum weight with stress constraints topology optimization
(2003)
[Abstract] Sizing and shape structural optimization problems are normally stated in terms of
a minimum weight approach with constraints that limit the maximum allowable
stresses and displacements.
However, topology ...
Numerical approaches for grounding installations in uniform and stratified soils
(2002)
[Abstract] This paper summarizes the main numerical approaches based on the BEM developed by the authors in the last years for the grounding analysis of electrical installations in uniform and layered soils.
Modelización numérica de problemas de potenciales transferidos por redes de tierra mediante el método de los elementos de contorno
(2004)
[Resumen] El análisis y diseño de tomas de tierra en subestaciones eléctricas requiere el cálculo de la distribución de los niveles de potencial sobre la superficie del terreno y la resistencia equivalente de la red de ...
High Order Shape Design Sensitivity: A Unified Approach
(Elsevier, 2000)
[Abstract] Three basic analytical approaches have been proposed for the calculation of sen-
sitivity derivatives in shape optimization problems. The first approach is based on
differentiation of the discretized equations ...
Why do computer methods for grounding analysis produce anomalous results?
(IEEE Power Engineering Society, 2003)
[Abstract] Grounding systems are designed to guarantee personal security, protection of equipments and continuity of power
supply. Hence, engineers must compute the equivalent resistance of the system and the potential ...