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On the Determination of Acoustic Properties of Membrane Type Structural Skin Elements by Means of Surface Displacements

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F21%3A00354959" target="_blank" >RIV/68407700:21230/21:00354959 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.3390/app112110357" target="_blank" >https://doi.org/10.3390/app112110357</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.3390/app112110357" target="_blank" >10.3390/app112110357</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    On the Determination of Acoustic Properties of Membrane Type Structural Skin Elements by Means of Surface Displacements

  • Original language description

    The article focuses on the determination of the acoustic properties (sound transmission loss, sound absorption and transmission coefficient under acoustic plane wave excitation) of membrane-type of specimens by means of a combination of incident plane wave sound pressure and membrane surface displacement information, measuring the sound pressure with a microphone and the membrane displacement by means of a laser Doppler vibrometer. An overview of known measurement methods and the theoretical background of the proposed so-called mobility-based method (MM) is presented. The proposed method was compared with the conventional methods for sound transmission loss and absorption measurement in the impedance tube, both numerically and experimentally. Finite element model (FEM) simulation results of two single layer membrane samples of different shape configurations were compared, amongst which six different variations of the backing wall termination. Four different approaches to determine the sound transmission loss and two methods to determine sound absorption properties of the membranes were compared. Subsequently, the proposed method was tested in a laboratory environment. The proposed MM method can be possibly used to measure the vibro-acoustic properties of building parts in situ.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20101 - Civil engineering

Result continuities

  • Project

    <a href="/en/project/EF16_027%2F0008465" target="_blank" >EF16_027/0008465: International Mobility of Researchers in CTU</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Applied Sciences

  • ISSN

    2076-3417

  • e-ISSN

    2076-3417

  • Volume of the periodical

    11

  • Issue of the periodical within the volume

    21

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    23

  • Pages from-to

  • UT code for WoS article

    000719049400001

  • EID of the result in the Scopus database

    2-s2.0-85118725833