1–12 von 12 Ergebnissen
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    MASS-AIR-MASS RESONANCE CAVITY SUPPRESSION USING HELMHOLTZ RESONATORS

    Hall, Andrew / Dodd, George / Schmid, Gian | TIBKAT | 2020

    Noise reduction capacity of a composite pavement system

    Kim, Seong-Kyum / Park, Woo-Jin / Lee, Kwan-Ho | Springer Verlag | 2014
    theory of Helmholtz resonators to asphalt pavement, special concrete blocks in the base course of asphalt pavement can be used to alleviate ...
    Schlagwörter: theory of the Helmholtz resonator

      Noise reduction capacity of a composite pavement system

      Kim, Seong-Kyum / Park, Woo-Jin / Lee, Kwan-Ho | Online Contents | 2014
      Schlagwörter: theory of the Helmholtz resonator

    Schallabsorber und Schalldämpfer

    Innovatorium für Maßnahmen zur Lärmbekämpfung und Raumakustik - Teil 3: Helmholtz-Resonatoren, Interferenz-Dämpfer
    Fuch, Helmut V. | IuD Bahn | 2002

    Hybrid acoustic barrier and absorber

    Freier Zugriff
    CHANG CHIA-MING / MCKNIGHT GEOFFREY P / HOGAN JANET M et al. | Europäisches Patentamt | 2016
    reflect acoustic waves in a predetermined range of frequencies. The rigid structure, the membrane, and the back sheet define a Helmholtz cavity ...

    Influence of ballast on wave steepening in tunnels

    Vardy, A.E. / Brown, J.M.B. | Tema Archiv | 2000
    ballast is linked to a series of Helmholtz resonators, yielding analytical relationships whose characteristics are explored. Then the resonators ...
    Schlagwörter: Helmholtz-Resonator

    EXTREMENESS-C : Analyse von extremen Sturmfluten in den Ästuaren von Elbe und Ems und mögliche Verstärkung

    Freier Zugriff
    Rudolph, Elisabeth / Brodhagen, Tabea | BASE | 2020
    : Küstenmeerforschung in Nord- und Ostsee, Rahmenprogramm: Forschung für nachhaltige Entwicklungen (FONA 3) / Projektpartner: Helmholtz-Zentrum Geesthacht ...

    Development of acoustic target strength near-field equation for underwater vehicles

    Kim, Jae-Yong / Hong, Suk-Yoon / Cho, Byung-Gu et al. | SAGE Publications | 2019
    polygonal plate. The target strength equation for polygonal plates, which is applicable to the near field, is provided by the Helmholtz–Kirchhoff ...

    Sound absorption member, vehicle component, and automobile

    Freier Zugriff
    FURUZAWA HIDEKI / SAKAGUCHI HIROSHI / NISHIKAWA TOMOHIRO et al. | Europäisches Patentamt | 2022

    A sound-absorbing member has a Helmholtz resonance structure including an inlet passage and a hollow portion connected to the outside

     ...

    Investigation of acoustic radiation from a sphere vibrating on the free surface of a finite depth water using a boundary element method

    Üstündağ, Burak / Uğurlu, Bahadir / Ergin, Ahmet | SAGE Publications | 2024
    modified version of the Helmholtz integral equation (HIE) is used to calculate acoustic radiation from the sphere vibrating in pulsating mode on ...

    Digitale Signalverarbeitung in der Messtechnik

    Möser, Michael | TIBKAT | 2018
    Deutsche Gesellschaft für Akustik hat ihn für sein Lebenswerk mit der Helmholtz-Medaille ausgezeichnet. ...

    SOUND ABSORPTION MATERIAL

    Freier Zugriff
    FURUSAWA HIDEKI / SUGAWARA TATSUSHI | Europäisches Patentamt | 2020
    provided with Helmholtz resonators 23 having neck portions 21 and cavity portions 22; and a skin layer 40 formed on the porous layer. In a neck ...