A local basis approximation approach for nonlinear parametric model order reduction

K Vlachas, K Tatsis, K Agathos, AR Brink… - Journal of Sound and …, 2021 - Elsevier
The efficient condition assessment of engineered systems requires the coupling of high
fidelity models with data extracted from the state of the system 'as-is'. In enabling this task …

Parametric reduced-order modeling for component-oriented treatment and localized nonlinear feature inclusion

K Vlachas, A Garland, DD Quinn, E Chatzi - Nonlinear Dynamics, 2024 - Springer
We propose coupling a physics-based reduction framework with a suited response
decomposition technique to derive a component-oriented reduction (COR) approach, which …

Gaussian Process–Based Optimal Design of a Negative Stiffness Device under Stochastic Seismic Excitation

KA Chondrogiannis, G Arcieri, E Chatzi… - Journal of Engineering …, 2025 - ascelibrary.org
The protection of buildings under seismic events necessitates the development of efficient
vibration mitigation devices. The recently proposed negative stiffness vibration (NegSV) …

Parametric model order reduction for localized nonlinear feature inclusion

K Vlachas, K Tatsis, K Agathos, AR Brink… - Advances in Nonlinear …, 2021 - Springer
Injecting parametric dependency and treating nonlinear phenomena pose the main
challenges when seeking to construct an accurate Reduced-Order Model (ROM) of an …

Vibroacoustics of periodic structures: model order reduction, characterization, optimization

R Boukadia - 2021 - theses.hal.science
Noise pollution has been identified as a physiological stressor that impacts both the
physiological and psychological health of those exposed to it. This recognition has …

On the coupling of reduced order modeling with substructuring of structural systems with component nonlinearities

K Vlachas, K Tatsis, K Agathos, AR Brink… - … Substructures, Volume 4 …, 2022 - Springer
The emergence of digital virtualization has brought Reduced Order Models (ROM) into the
spotlight. A successful reduced order representation should allow for modeling of complex …

Two-story frame with Bouc-Wen hysteretic links as a multi-degree of freedom nonlinear response simulator

K Vlachas, K Agathos, KE Tatsis… - 5th Workshop on …, 2021 - research-collection.ethz.ch
A diverse variety of engineering and dynamic systems, ranging from control applications and
solid mechanics to biology and economics, feature hysteretic phenomena. This commonly …

Rapid stochastic response estimation of dynamic nonlinear structures: Innovative frameworks and applications

B Li - 2022 - deepblue.lib.umich.edu
Response estimation of structural systems characterized by large numbers of degrees of
freedom (DOF) is universally needed in practical engineering for performance evaluation …

Virtualization of parametric dynamical systems through uncertainty-aware reduced order modeling

K Vlachas - 2024 - research-collection.ethz.ch
In the modern era of digital transformation recent advancements have given rise to the
concept of twinning, that is, the development of digital representations of physical assets and …

On the Coupling of Reduced Order Modeling with Substructuring of Structural Systems with Component

K Vlachas, K Tatsis, K Agathos, AR Brink… - … 4: Proceedings of …, 2021 - books.google.com
The emergence of digital virtualization has brought Reduced Order Models (ROM) into the
spotlight. A successful reduced order representation should allow for modeling of complex …