All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”

HOMOGENIZATION OF THE ACOUSTIC TRANSMISSION THROUGH PERFORATED LAYER

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F07%3A00000086" target="_blank" >RIV/49777513:23520/07:00000086 - isvavai.cz</a>

  • Alternative codes found

    RIV/49777513:23520/07:00000009 RIV/49777513:23640/07:00000009 RIV/49777513:23640/07:00000021

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    HOMOGENIZATION OF THE ACOUSTIC TRANSMISSION THROUGH PERFORATED LAYER

  • Original language description

    The paper deals with transmission conditions imposed on the interface plane separating two halfspaces occupied by the acoustic medium. The conditions are obtained as the two-scale homogenization limit of the standard acoustic problem imposed in the layerwith the perforated periodic structure embedded inside. Both the characteristic scale of the perforations and the layer thickness are parameterized by a small parameter. The limit model involving some homogenized coefficients governs the interface discontinuity of the acoustic pressure associated with the two halfspaces and the magnitude of the fictitious transversal acoustic velocity. This novel approach presents a new alternative to the usual description of the acoustic impedance, which relies on a rough averaging the quasiexperimental data.

  • Czech name

    Homogenizace akustické transmise perforovanou vrstvou

  • Czech description

    Článek pojednává o transmisních podmínkách na rozhraní mezi dvěma poloprostory vyplněnými akustickým médiem. Podmínky jsou získány dvouškálovou homogenizací standardní úlohy pro akustické médium v oblasti perforované překážky s periodickou strukturou. Charakteristický rozměr perforací i tloušťky je parametrizován malým parametrem asymptoticky se blížícím nule. Limitní model obsahuje homogenizované koeficienty, které upravují fiktivní transversální akustickou rychlost a tlakovou nespojitost. Tento nový přístup reprezentuje alternativu k dosud používaným kvaziempirickým popisům akustické impedance.

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    BI - Acoustics and oscillation

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2007

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    Proceedings of Waves 2007

  • ISBN

    0-7049-9880-7

  • ISSN

  • e-ISSN

  • Number of pages

    3

  • Pages from-to

    510-512

  • Publisher name

    University of Reading

  • Place of publication

    Reading

  • Event location

    Reading

  • Event date

    Jan 1, 2007

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article