Results 31 to 40 of about 1,914,780 (311)

Induction motor speed control using reduced-order model

open access: yesAutomatika, 2018
Induction machines have a highly nonlinear model with only partial state information. The unavailability of all states and the presence of unknown disturbances make controller design and proving closed-loop stability challenging tasks.
A. Sabir, S. Ibrir
doaj   +1 more source

Convolutional Autoencoders for Reduced-Order Modeling

open access: yesCoRR, 2021
In the construction of reduced-order models for dynamical systems, linear projection methods, such as proper orthogonal decompositions, are commonly employed. However, for many dynamical systems, the lower dimensional representation of the state space can most accurately be described by a \textit{nonlinear} manifold.
Sreeram Venkat   +2 more
openaire   +2 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   +2 more sources

Fast prediction of the performance of the centrifugal pump based on reduced-order model

open access: yesEnergy Reports, 2023
In the present paper, the prediction of the performance of a centrifugal pump is investigated based on proper orthogonal decomposition (POD) reduced-order model (ROM).
Zhiguo Wei   +4 more
doaj   +1 more source

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

Arnoldi model order reduction for electromagnetic wave scattering computation [PDF]

open access: yes, 2007
This paper presents a model order reduction (MOR) algorithm for the volume integral equation formulation of electromagnetic wave scattering. We apply the Arnoldi algorithm to circumvent the computational complexity associated with the numerical solution ...
Bradley, Patrick   +5 more
core   +1 more source

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

Laguerre-Gram reduced-order modeling [PDF]

open access: yesIEEE Transactions on Automatic Control, 2005
We present an efficient model reduction procedure based on the Laguerre description of the system to be approximated. Using a one-order operator defined in the Laplace domain we construct a pencil of functions and formulate the problem as the minimization of the L/sub /spl infin///sup 2/(/spl Ropf//sup +/) criterion. The use of a weight function in the
Ahmed Amghayrir   +4 more
openaire   +2 more sources

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   +5 more sources

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