Exploració per tema "Proper generalized decomposition"
Ara es mostren els items 1-20 de 20
-
An error estimator for real-time simulators based on model order reduction
(Springer, 2015-11-26)
Article
Accés obertModel order reduction (MOR) is one of the most appealing choices for real-time simulation of non-linear solids. In this work a method is presented in which real time performance is achieved by means of the o -line solution ... -
An overlapping domain decomposition method for the solution of parametric elliptic problems via proper generalized decomposition
(Elsevier, 2024-01-01)
Article
Accés obertA non-intrusive proper generalized decomposition (PGD) strategy, coupled with an overlapping domain decomposition (DD) method, is proposed to efficiently construct surrogate models of parametric linear elliptic problems. ... -
Application of the proper generalized decomposition to elasto-plastic finite element analysis
(CIMNE, 2015)
Comunicació de congrés
Accés obertThe aim of this paper is to develop the PGD for time dependent elastoplastic problems with cyclic loadings. The objective is to show that the PGD can be well suited for simulating a ratchet effect by separating ... -
Computational vademecums for a fast and reliable simulation of RTM processes
(Universidad de Sevilla. Grupo de Elasticidad y Resistencia de Materiales, 2014)
Text en actes de congrés
Accés obertProper Generalized Decomposition methods allow to obtain an efficient solution for multi-parametric problems without the need for simulating numerous problems to obtain a response surface. Instead, PGD obtains a priori a ... -
Effect of the separated approximation of input data in the accuracy of the resulting PGD solution
(Springer, 2015-11-25)
Article
Accés obertThe Proper Generalized Decomposition (PGD) requires separability of the input data (e.g. physical properties, source term, boundary conditions, initial state). In many cases the input data is not expressed in a separated ... -
Error estimation and adaptivity for PGD based on complementary solutions applied to a simple 1D problem
(Springer, 2020-10-30)
Article
Accés obertReduced order methods are powerful tools for the design and analysis of sophisticated systems, reducing computational costs and speeding up the development process. Among these reduced order methods, the Proper Generalized ... -
Error estimation for proper generalized decomposition solutions: a dual approach
(2020-12-15)
Article
Accés obertThe Proper Generalized Decomposition is a well established reduced order method, used to efficiently obtain approximate solutions of multi-dimensional problems in a procedure that controls the effects of the "curse of ... -
Una estrategia basada en la descomposición propia generalizada para aplicaciones gobernadas por datos dinámicos
(Universitat Politècnica de Catalunya. CIMNE, 2013)
Article
Accés obertLas aplicaciones gobernadas por datos dinámicos (DDDAS) pueden considerarse un nuevo paradigma en el campo de las ciencias aplicadas y la ingeniería, en particular en la denominada Ingeniería basada en simulación ... -
Explicit parametric solutions of lattice structures with proper generalized decomposition (PGD): applications to the design of 3D-printed architectured materials
(2018-01-10)
Article
Accés obertArchitectured materials (or metamaterials) are constituted by a unit-cell with a complex structural design repeated periodically forming a bulk material with emergent mechanical properties. One may obtain specific macro-scale ... -
Generalized parametric solutions in Stokes flow
(2017-11-01)
Article
Accés obertDesign optimization and uncertainty quantification, among other applications of industrial interest, require fast or multiple queries of some parametric model. The Proper Generalized Decomposition (PGD) provides a separable ... -
Implementation of the proper generalized decomposition for hybridizable discontinuous Galerkin
(Universitat Politècnica de Catalunya, 2017-10)
Projecte Final de Màster Oficial
Accés obertEn aquest treball de final de màster es desenvolupa una narració lògica de la implementació de la ''proper generalized decomposition'' (model order reduction technique) per al mètode d'elements finits (FEM) ''hybridizable ... -
Nonintrusive parametric NVH study of a vehicle body structure
(Taylor & Francis Group, 2022-06-27)
Article
Accés obertA reduced order model technique is presented to perform the parametric Noise, Vibration and Harshness (NVH) study of a vehicle body-in-white (BIW) structure characterized by material and shape design variables. The ultimate ... -
Nonintrusive reduced order model for parametric solutions of inertia relief problems
(John Wiley & sons, 2021-08-30)
Article
Accés obertThe Inertia Relief (IR) technique is widely used by industry and produces equilibrated loads allowing to analyze unconstrained systems without resorting to the more expensive full dynamic analysis. The main goal of this ... -
Proper generalized decomposition for parameterized Helmholtz problems in heterogeneous and unbounded domains: application to harbor agitation
(2015-10-01)
Article
Accés obertSolving the Helmholtz equation for a large number of input data in an heterogeneous media and unbounded domain still represents a challenge. This is due to the particular nature of the Helmholtz operator and the sensibility ... -
Real-time simulation techniques for augmented learning in science and engineering
(Springer, 2016-11)
Article
Accés obertIn this paper we present the basics of a novel methodology for the development of simulation-based and augmented learning tools in the context of applied science and engineering. It is based on the extensive use of model ... -
Reduced order modeling for smart grids' simulation and optimization
(Universitat Politècnica de Catalunya, 2017-02-28)
Tesi
Accés obert
Realitzat a/amb: École centrale de NantesThis thesis presents the study of the model order reduction for power grids and transmission networks. The specific focus has been the transient dynamics. A mathematical viewpoint has been adopted for model reduction. Power ... -
Simulating squeeze flows in multiaxial laminates: towards fully 3D mixed formulations
(2017-10)
Article
Accés restringit per política de l'editorialThermoplastic composites are widely considered in structural parts. In this paper attention is paid to squeeze flow of continuous fiber laminates. In the case of unidirectional prepregs, the ply constitutive equation is ... -
Solving parameteric wave propagation models with domain decomposed reduced order methods
(Barcelona Supercomputing Center, 2019-05-07)
Text en actes de congrés
Accés obert -
Tensor representation of non-linear models using cross approximations
(2019-10-01)
Article
Accés obertTensor representations allow compact storage and efficient manipulation of multi-dimensional data. Based on these, tensor methods build low-rank subspaces for the solution of multi-dimensional and multi-parametric models. ... -
Vademecum-based GFEM (V-GFEM): optimal enrichment for transient problems
(2016-11)
Article
Accés obertThis paper proposes a generalized finite element method based on the use of parametric solutions as enrichment functions. These parametric solutions are precomputed off-line and stored in memory in the form of a computational ...