An acoustic radiator with integrated cavity and active control of surface vibration

Arthur Berkhoff*, Farnaz Tajdari

*Corresponding author for this work

    Research output: Contribution to conferencePaper

    1 Citation (Scopus)

    Abstract

    This paper presents a method to realize an acoustic source for low frequencies with relatively small thickness. A honeycomb plate structure which is open on one side combines the radiating surface and the major part of the air cavity. The vibration of the plate is controlled with a decentralized feedback controller. The fundamental resonance is controlled, as well as higher-order bending modes, while avoiding possible instabilities due to the fluid-structure interaction. The smooth and well defined frequency response enables robust feedforward control for further response equalization. The influence of different actuation principles on the overall system efficiency is compared.

    Original languageEnglish
    Publication statusPublished - 2017
    Event142nd Audio Engineering Society (AES) International Convention 2017 - Maritim Hotel Berlin, Berlin, Germany
    Duration: 20 May 201723 May 2017
    Conference number: 142
    http://www.aes.org/events/142/

    Conference

    Conference142nd Audio Engineering Society (AES) International Convention 2017
    Abbreviated titleAES 2017
    CountryGermany
    CityBerlin
    Period20/05/1723/05/17
    Internet address

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  • Cite this

    Berkhoff, A., & Tajdari, F. (2017). An acoustic radiator with integrated cavity and active control of surface vibration. Paper presented at 142nd Audio Engineering Society (AES) International Convention 2017, Berlin, Germany.