Structured model order reduction for vibro-acoustic problems using interpolation and balancing methods

Q Aumann, SWR Werner - Journal of Sound and Vibration, 2023 - Elsevier
Vibration and dissipation in vibro-acoustic systems can be assessed using frequency
response analysis. Evaluating a frequency sweep on a full-order model can be very costly …

Structure-preserving interpolation of bilinear control systems

P Benner, S Gugercin, SWR Werner - Advances in Computational …, 2021 - Springer
In this paper, we extendthe structure-preserving interpolatory model reduction framework,
originally developed for linear systems, to structured bilinear control systems. Specifically …

A greedy data collection scheme for linear dynamical systems

K Cherifi, P Goyal, P Benner - Data-Centric Engineering, 2022 - cambridge.org
Mathematical models are essential to analyze and understand the dynamics of complex
systems. Recently, data-driven methodologies have gotten a lot of attention which is …

Dominant subspaces of high-fidelity polynomial structured parametric dynamical systems and model reduction

P Goyal, IP Duff, P Benner - Advances in Computational Mathematics, 2024 - Springer
In this work, we investigate a model order reduction scheme for high-fidelity nonlinear
structured parametric dynamical systems. More specifically, we consider a class of nonlinear …

Projection-based eigenproblem solver of large-scale viscoelastically damped systems via an original-dimension subspace

M Cao, Y Fu, S Zhu, L Ling, L Li - Mechanical Systems and Signal …, 2025 - Elsevier
The analysis of frequency-dependent viscoelastic systems is computationally challenging,
especially for large-scale structural systems with significantly different levels of dam** …

An efficient physics-dimension-based reduction method for computing frequency response functions of viscoelastically damped systems

M Cao, Y Fu, S Zhu, L Ling, L Li - Journal of Vibration and …, 2024 - journals.sagepub.com
The frequency response functions (FRFs) are of critical interest to dynamic problems,
however, they suffer from computational challenges for viscoelastically damped systems. In …

Adaptive choice of near-optimal expansion points for interpolation-based structure-preserving model reduction

Q Aumann, SWR Werner - Advances in Computational Mathematics, 2024 - Springer
Interpolation-based methods are well-established and effective approaches for the efficient
generation of accurate reduced-order surrogate models. Common challenges for such …

Robust error assessment for reduced order vibro-acoustic problems

Q Aumann, G Müller - Journal of Sound and Vibration, 2023 - Elsevier
Robust and efficient automatic model order reduction is important in the design process of
vibro-acoustic structures. For correct assessment of the reduction error without requiring the …

Discretization and model reduction error estimation of interconnected dynamical systems

B Dogančić, M Jokić - IFAC-PapersOnLine, 2022 - Elsevier
In this paper a novel approach for estimating both discretization and model order reduction
error is presented. Discretization is carried out using finite element method. Finite element …

Predicting near optimal interpolation points for parametric model order reduction using regression models

Q Aumann, G Müller - PAMM, 2021 - Wiley Online Library
The design of vibro‐acoustic systems, such as vehicle interiors, regarding optimal
vibrational or sound radiation properties requires the solution of many numerical models …