Results 31 to 40 of about 26,791,362 (287)

Two-to-one resonant multi-modal dynamics of horizontal/inclined cables. Part II : internal resonance activation, reduced-order models and nonlinear normal modes [PDF]

open access: yes, 2007
Resonant multi-modal dynamics due to planar 2:1 internal resonances in the nonlinear, finite-amplitude, free vibrations of horizontal/inclined cables are parametrically investigated based on the second-order multiple scales solution in Part I [1].
Rega, Giuseppe, Srinil, Narakorn
core   +4 more sources

Wall‐based reduced‐order modelling [PDF]

open access: yesInternational Journal for Numerical Methods in Fluids, 2015
SummaryIn this work, we propose a novel approach to model order reduction for incompressible fluid flows, which focuses on the spatio‐temporal description of the stresses on the surface of a body, that is, of the wall shear stress and of the wall pressure.
Lasagna, Davide, Tutty, Owen
openaire   +3 more sources

Causal and stable reduced-order model for linear high-frequency systems [PDF]

open access: yes, 2008
With the ever-growing complexity of high-frequency systems in the electronic industry, formation of reduced-order models of these systems is paramount.
Deschrijver, D   +6 more
core   +2 more sources

Reduced-Order Model Development for Airfoil Forced Response

open access: yesInternational Journal of Rotating Machinery, 2008
Two new reduced-order models are developed to accurately and rapidly predict geometry deviation effects on airfoil forced response. Both models have significant application to improved mistuning analysis.
Jeffrey M. Brown, Ramana V. Grandhi
doaj   +1 more source

Reduced Order Modelling for the Optimization of CSP Tower Receivers and Their Cavities for High Temperature Applications

open access: yesSolarPACES Conference Proceedings, 2023
We present a Reduced Order Method approach to the heat exchange and loses in a simulated 3D cavity of CSP tower receivers. We validate the method in a 2D Boussinesq model problem for natural convection monitoring temperature, pressure and velocity for ...
Juan Valverde   +5 more
doaj   +1 more source

Generative adversarial reduced order modelling

open access: yesScientific Reports
AbstractIn this work, we present GAROM, a new approach for reduced order modeling (ROM) based on generative adversarial networks (GANs). GANs attempt to learn to generate data with the same statistics of the underlying distribution of a dataset, using two neural networks, namely discriminator and generator.
Coscia, Dario   +2 more
openaire   +6 more sources

Determining Reduced Order Models for Optimal Stochastic Reduced Order Models

open access: yes, 2015
The use of parameterized reduced order models(PROMs) within the stochastic reduced order model (SROM) framework is a logical progression for both methods. In this report, five different parameterized reduced order models are selected and critiqued against the other models along with truth model for the example of the Brake-Reuss beam. The models are: a
Matthew Bonney, Matthew Brake
openaire   +2 more sources

Reduced Order Modeling of an Industrial Feeder Model

open access: yesIFAC Proceedings Volumes, 2003
Models of glaes furnaces are described by a set of nonlinear partial differential equâtioris which govern the mass, momentum and energy balances and a numberof non-linear functions of the independent scalais which describe the dependent variables like viscosities and densities in a fluid.
Astrid, P., Weiland, S., Twerda, A.
openaire   +3 more sources

Finite element reduced order models for nonlinear vibrations of piezoelectric layered beams with applications to NEMS [PDF]

open access: yes, 2012
This article presents a finite element reduced order model for the nonlinear vibrations of piezoelectric layered beams with application to NEMS. In this model, the geometrical nonlinearities are taken into account through a von Kármán nonlinear strain ...
O. Thomas   +5 more
core   +1 more source

Development of a Reduced Order Model for Fuel Burnup Analysis

open access: yesEnergies, 2020
Fuel burnup analysis requires a high computational cost for full core calculations, due to the amount of the information processed for the total reaction rates in many burnup regions. Indeed, they reach the order of millions or more by a subdivision into
Christian Castagna   +4 more
doaj   +1 more source

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