A comparison of model reduction techniques based on modal projection for structures with frequency-dependent damping

L Rouleau, JF Deü, A Legay - Mechanical Systems and Signal Processing, 2017 - Elsevier
Frequency response functions are often used in the design of damped structures to assess
the level of vibration and evaluate the performances of a damping treatment. Rather than …

Dimensional reduction of nonlinear finite element dynamic models with finite rotations and energy‐based mesh sampling and weighting for computational efficiency

C Farhat, P Avery, T Chapman… - International Journal for …, 2014 - Wiley Online Library
SUMMARY A rigorous computational framework for the dimensional reduction of discrete,
high‐fidelity, nonlinear, finite element structural dynamics models is presented. It is based …

[图书][B] Finite element and boundary methods in structural acoustics and vibration

N Atalla, F Sgard - 2015 - books.google.com
A unique and in-depth presentation of the finite element method (FEM) and the boundary
element method (BEM) in structural acoustics and vibrations, this book illustrates the …

Reduced-order methods for dynamic problems in topology optimization: A comparative study

Q Li, O Sigmund, JS Jensen, N Aage - Computer Methods in Applied …, 2021 - Elsevier
The dynamics of engineering structures are of great importance for topology optimization
problems in both academia and industry. However, for design problems where broadband …

Efficient model reduction of parametrized systems by matrix discrete empirical interpolation

F Negri, A Manzoni, D Amsallem - Journal of Computational Physics, 2015 - Elsevier
In this work, we apply a Matrix version of the so-called Discrete Empirical Interpolation
(MDEIM) for the efficient reduction of nonaffine parametrized systems arising from the …

Progressive construction of a parametric reduced‐order model for PDE‐constrained optimization

MJ Zahr, C Farhat - International Journal for Numerical …, 2015 - Wiley Online Library
An adaptive approach to using reduced‐order models (ROMs) as surrogates in partial
differential equations (PDE)‐constrained optimization is introduced that breaks the …

Proper generalized decomposition for parameterized Helmholtz problems in heterogeneous and unbounded domains: Application to harbor agitation

D Modesto, S Zlotnik, A Huerta - Computer Methods in Applied Mechanics …, 2015 - Elsevier
Solving 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 …

Model order reduction of time-domain vibro-acoustic finite element simulations with non-locally reacting absorbers

Y Cai, S van Ophem, W Desmet, E Deckers - Computer Methods in Applied …, 2023 - Elsevier
Time-domain vibro-acoustic finite element simulation gained considerable interest in recent
years because of the rise of some applications such as auralization and virtual sensing …

Accelerated mesh sampling for the hyper reduction of nonlinear computational models

T Chapman, P Avery, P Collins… - International Journal for …, 2017 - Wiley Online Library
In nonlinear model order reduction, hyper reduction designates the process of
approximating a projection‐based reduced‐order operator on a reduced mesh, using a …

Review of model order reduction methods and their applications in aeroelasticity loads analysis for design optimization of complex airframes

PV Thomas, MSA ElSayed, D Walch - Journal of Aerospace …, 2019 - ascelibrary.org
Identification of an aircraft critical loads envelope requires a lengthy and rigorous analysis
procedure that includes simulating the aircraft in thousands of load cases identified in …