Results 31 to 40 of about 4,521,373 (282)

Passivity-preserving parameterized model order reduction using singular values and matrix interpolation [PDF]

open access: yes, 2013
We present a parameterized model order reduction method based on singular values and matrix interpolation. First, a fast technique using grammians is utilized to estimate the reduced order, and then common projection matrices are used to build ...
Dhaene, Tom   +3 more
core   +1 more source

Multiphase flow applications of nonintrusive reduced-order models with Gaussian process emulation

open access: yesData-Centric Engineering, 2022
Reduced-order models (ROMs) are computationally inexpensive simplifications of high-fidelity complex ones. Such models can be found in computational fluid dynamics where they can be used to predict the characteristics of multiphase flows.
Themistoklis Botsas   +3 more
doaj   +1 more source

Computational models of ventricular mechanics and adaptation in response to right-ventricular pressure overload

open access: yesFrontiers in Physiology, 2022
Pulmonary arterial hypertension (PAH) is associated with substantial remodeling of the right ventricle (RV), which may at first be compensatory but at a later stage becomes detrimental to RV function and patient survival.
Oscar O. Odeigah   +3 more
doaj   +1 more source

Reduced-Order Modeling of Gust Responses [PDF]

open access: yesJournal of Aircraft, 2017
This paper describes two approaches to the construction of reduced-order models from computational fluid dynamics to predict the gust response of airfoils and wings.
Wales, Christopher   +2 more
openaire   +2 more sources

Probabilistic Rotor Life Assessment Using Reduced Order Models

open access: yesShock and Vibration, 2009
Probabilistic failure assessments for integrally bladed disks are system reliability problems where a failure in at least one blade constitutes a rotor system failure.
Brian K. Beachkofski
doaj   +1 more source

Fault Identification in Electric Servo Actuators of Robot Manipulators Described by Nonstationary Nonlinear Dynamic Models Using Sliding Mode Observers

open access: yesSensors, 2022
The problem of fault identification in electric servo actuators of robot manipulators described by nonstationary nonlinear dynamic models under disturbances is considered. To solve the problem, sliding mode observers are used.
Alexander Zuev   +3 more
doaj   +1 more source

Low-Order Electrochemical State Estimation for Li-Ion Batteries

open access: yesAlgorithms, 2023
Batteries are complex systems involving spatially distributed microscopic mechanisms on different time scales whose adequate interplay is essential to ensure a desired functioning.
Higuatzi Moreno, Alexander Schaum
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   +5 more sources

Nonlinear reduced order models for elastic structures

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics
The problem of synthesizing the reduced-order dynamic models for continuous elastic systems in a geometrically nonlinear formulation (primarily thin-walled structures) based on the finite element method is considered.
Lukin Aleksei   +3 more
doaj   +1 more source

Regularization method for calibrated POD reduced-order models

open access: yesMATEC Web of Conferences, 2014
In this work we present a regularization method to improve the accuracy of reduced-order models based on Proper Orthogonal Decomposition. The bench mark configuration retained corresponds to a case of relatively simple dynamics: a two-dimensional flow ...
El Majd Badr Abou, Cordier Laurent
doaj   +1 more source

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