Broadband acoustic meta-liner with metal foam approaching causality-governed minimal thickness

H Ding, N Wang, S Qiu, S Huang, Z Zhou… - International Journal of …, 2022 - Elsevier
Acoustic absorbers based on resonant cavities or porous materials have been extensively
investigated for developing acoustic liners but still suffer from narrow working frequency …

Sound propagation in realistic interactive 3D scenes with parameterized sources using deep neural operators

N Borrel-Jensen, S Goswami… - Proceedings of the …, 2024 - National Acad Sciences
We address the challenge of acoustic simulations in three-dimensional (3D) virtual rooms
with parametric source positions, which have applications in virtual/augmented reality, game …

Time domain room acoustic simulations using the spectral element method

F Pind, AP Engsig-Karup, CH Jeong… - The Journal of the …, 2019 - pubs.aip.org
This paper presents a wave-based numerical scheme based on a spectral element method,
coupled with an implicit-explicit Runge-Kutta time stepping method, for simulating room …

Broadband sound attenuation by metaliner under grazing flow

S Huang, E Zhou, Z Huang, P Lei, Z Zhou… - Applied Physics …, 2021 - pubs.aip.org
Acoustic liners are the most effective passive solution to noise emission from ducts but still
suffer from the drawbacks of narrow-band performances and thick structures for the …

[HTML][HTML] Physics-informed neural networks for one-dimensional sound field predictions with parameterized sources and impedance boundaries

N Borrel-Jensen, AP Engsig-Karup, CH Jeong - JASA Express Letters, 2021 - pubs.aip.org
2. Methods We take a data-free approach where only the underlying physics is included in
the training and their residual minimized through the loss function, allowing insights into how …

Model order reduction of time-domain vibro-acoustic finite element simulations with admittance boundary conditions for virtual sensing applications

Y Cai, S van Ophem, W Desmet, E Deckers - Mechanical Systems and …, 2023 - Elsevier
Virtual sensing employs an estimator that combines a numerical model and a limited set of
measurements to estimate the full field pressure of a vibro-acoustic system in the time …

Time-domain impedance boundary condition modeling with the discontinuous Galerkin method for room acoustics simulations

H Wang, M Hornikx - The Journal of the Acoustical Society of America, 2020 - pubs.aip.org
The time-domain nodal discontinuous Galerkin (TD-DG) method is emerging as a potential
wave-based method for three-dimensional (3D) room acoustics modeling, where high-order …

High potential of small-room acoustic modeling with 3D time-domain finite element method

T Okuzono, T Yoshida - Frontiers in Built Environment, 2022 - frontiersin.org
Applicability of wave-based acoustics simulation methods in the time domain has increased
markedly for performing room-acoustics simulation. They can incorporate sound absorber …

Model order reduction of time-domain vibro-acoustic finite element simulations with poroelastic materials

Y Cai, S van Ophem, W Desmet, E Deckers - Computer Methods in Applied …, 2024 - Elsevier
This paper presents a stability-preserving model reduction approach for a vibro-acoustic
finite element model including poroelastic materials. Most of the research on these systems …

Duct modes damping through an adjustable electroacoustic liner under grazing incidence

R Boulandet, H Lissek, S Karkar, M Collet… - Journal of Sound and …, 2018 - Elsevier
This paper deals with active sound attenuation in lined ducts with flow and its application to
duct modes damping in aircraft engine nacelles. It presents an active lining concept based …