Modal analysis and sound field simulation of vibration panels in a free sound field and in a rectangular enclosure

Kazuhiko Kawahara, Akihiro Sonogi, Shin Ya Sato

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Several types of implementation of panel loudspeakers, for example, distributed mode loudspeaker(DML), are proposed. The diaphragm of DML is thought as behave like a bending plate. The diaphragm of an electrostatic loudspeaker is thought move as a rigid plate. What is the difference of an acoustical sound field generation feature with each implementation ? In this paper, we used models of same dimensional rectangular panel. One is a rigid diaphragm. Another is a bending panel that has an actuator in the center of it. We made simulations of directivity and sound pressure distribution in a rectangular room. We could show less coherent SPL distribution in the case of bending panel.

    Original languageEnglish
    Title of host publication130th Audio Engineering Society Convention 2011
    Pages1193-1199
    Number of pages7
    Publication statusPublished - 2011
    Event130th Audio Engineering Society Convention 2011 - London, United Kingdom
    Duration: May 13 2011May 16 2011

    Publication series

    Name130th Audio Engineering Society Convention 2011
    Volume2

    Other

    Other130th Audio Engineering Society Convention 2011
    Country/TerritoryUnited Kingdom
    CityLondon
    Period5/13/115/16/11

    All Science Journal Classification (ASJC) codes

    • Modelling and Simulation
    • Acoustics and Ultrasonics

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