Results 11 to 20 of about 16,925,620 (257)

Reduced-order modelling for high-speed aerial weapon aerodynamics [PDF]

open access: yes, 2008
In this work a high-fidelity low-cost surrogate of a computational fluid dynamics analysis tool was developed. This computational tool is composed of general and physics- based approximation methods by which three dimensional high-speed aerodynamic ...
Mifsud, Michael
core   +7 more sources

Error estimation of a proper orthogonal decomposition reduced model of a permanent magnet synchronous machine [PDF]

open access: yes, 2014
Model order reduction methods, like the proper orthogonal decomposition (POD), enable to reduce dramatically the size of a finite element (FE) model.
MAC, Hung   +2 more
core   +1 more source

Space–time proper generalized decompositions for the resolution of transient elastodynamic models [PDF]

open access: yes, 2013
In this paper, we investigate ability of proper generalized decomposition (PGD) to solve transient elastodynamic models in space–time domain. Classical methods use time integration schemes and an incremental resolution process.
BOUCINHA, Lucas   +2 more
core   +1 more source

Selection of Optimal Portfolio Using Expert System in Mamdani Fuzzy Environment [PDF]

open access: yesMuṭāli̒āt-i Mudīriyyat-i Ṣan̒atī, 2018
Modifications are an integrated part of economic evolution in financial section which include reforming the capital market structure, innovating in tools and an environment with more comprehensive discipline.
Seyedeh Farnaz Kouhbanani Nejad   +2 more
doaj   +1 more source

Modelling and Stabilisation of an Unconventional Airship: A Polytopic Approach

open access: yesAerospace, 2022
The paper presents the modelling and stabilisation of an unconventional airship. The complexity of such a new design requires both proper dynamic modelling and control. A complete dynamic model is built here.
Said Chaabani, Naoufel Azouz
doaj   +1 more source

A second-order resolvent formulation for the analysis of turbulent flow structures

open access: yesComptes Rendus. Mécanique, 2023
An attempt to improve the accuracy of resolvent-based predictions by including velocity correlations in the linear model is developed here. Closure assumptions for unresolved nonlinearities are thus pushed back to a higher order.
Chevalier, Quentin   +2 more
doaj   +1 more source

3D simulation of laminated shell structures using the Proper Generalized Decomposition [PDF]

open access: yes, 2014
Numerical simulations of composite structures are generally performed using multi-layered shell elements in the context of the finite elements method. This strategy has numerous advantages like a low computation time and the capability to reproduce the ...
PRULIERE, Etienne
core   +1 more source

Dynamic model reduction: An overview of available techniques with application to power systems [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2012
This paper summarises the model reduction techniques used for the reduction of large-scale linear and nonlinear dynamic models, described by the differential and algebraic equations that are commonly used in control theory. The groups of methods
Đukić Savo D., Sarić Andrija T.
doaj   +1 more source

Determining factors of child linear growth from the viewpoint of Bronfenbrenner's Bioecological Theory

open access: yesJornal de Pediatria, 2023
Objective: To analyze the factors associated with children's linear growth, according to the different subsystems of the 6Cs model and Bronfenbrenner's Bioecological Theory.
Gabriela Rossiter Stux Veiga   +3 more
doaj   +1 more source

Model Order Reduction of Non-Linear Magnetostatic Problems Based on POD and DEI Methods [PDF]

open access: yes, 2014
In the domain of numerical computation, Model Order Reduction approaches are more and more frequently applied in mechanics and have shown their efficiency in terms of reduction of computation time and memory storage requirements. One of these approaches,
CLENET, Stephane, HENNERON, Thomas
core   +1 more source

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