Estimation and minimization of errors caused by sample size effect in the measurement of the normal absorption coefficient of a locally reactive surface
E Brandão, A Lenzi, J Cordioli - Applied Acoustics, 2012 - Elsevier
In this paper the effects of the finite size of a sample on the measurement of the normal
absorption coefficient are explored with the aid of a BEM model. Both the experimental …
absorption coefficient are explored with the aid of a BEM model. Both the experimental …
Estimating the acoustical properties of locally reactive finite materials using the boundary element method
ZW Luo, CJ Zheng, YB Zhang, CX Bi - The Journal of the Acoustical …, 2020 - pubs.aip.org
The finite size of a sound-absorbing material may lead to inaccurate results when measuring
the acoustical properties of the material using the free-field measurement methods. In this …
the acoustical properties of the material using the free-field measurement methods. In this …
[PDF][PDF] Derivation of time-domain surface impedance boundary conditions based on in-situ surface measurements and model fitting
BB De La Hosseraye, W Huiqing… - 23rd International …, 2019 - pub.dega-akustik.de
In order to achieve accurate time-domain wave-based simulations of a real room, the
acoustical properties of the locally reacting materials within the room have to be …
acoustical properties of the locally reacting materials within the room have to be …
[PDF][PDF] Round robin study of a reference sample for PU in-situ sound absorption characterization
F Meng, D Fernandez - researchgate.net
The determination of acoustic material properties plays a fundamental role in simulating and
designing effective noise reduction treatments. Several standardized measurement …
designing effective noise reduction treatments. Several standardized measurement …
Medição in situ de impedância acústica com arranjo de microfones e algoritmos promotores de esparsidade
TC Malaguetta, JW Farias, E Brandão… - Acústica e …, 2018 - acustica.emnuvens.com.br
O comportamento acústico de salas de aula, teatros, carros e aviões é de suma importância
e objeto de constante melhoria. Para podermos simular e prever o comportamento destes …
e objeto de constante melhoria. Para podermos simular e prever o comportamento destes …
Acoustic simulation of a steering sensor for geometric design optimization
L Figueiredo, M Dourado, SMM Sabet… - … and Innovation (ICE …, 2017 - ieeexplore.ieee.org
This work is focused on the acoustic simulation of a steering wheel sensor for geometric
design optimization. The sensor is located under the steering wheel inside the vehicle cabin …
design optimization. The sensor is located under the steering wheel inside the vehicle cabin …
[PDF][PDF] Análise teórica e experimental do processo de medição in situ da impedância acústica
EB Carneiro - 2011 - core.ac.uk
Em diversas aplicações em acústica o uso de materiais absorvedores é de extrema
importância. Em controle de ruído em plantas industriais, por exemplo, materiais …
importância. Em controle de ruído em plantas industriais, por exemplo, materiais …