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

Arthur Berkhoff; Farnaz Tajdari

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 conference › Paper › peer-review

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 language	English
Publication status	Published - 2017
Event	142nd Audio Engineering Society (AES) International Convention 2017 - Maritim Hotel Berlin, Berlin, Germany Duration: 20 May 2017 → 23 May 2017 Conference number: 142 http://www.aes.org/events/142/

Conference

Conference	142nd Audio Engineering Society (AES) International Convention 2017
Abbreviated title	AES 2017
Country/Territory	Germany
City	Berlin
Period	20/05/17 → 23/05/17
Internet address	http://www.aes.org/events/142/

Cite this

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title = "An acoustic radiator with integrated cavity and active control of surface vibration",

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.",

author = "Arthur Berkhoff and Farnaz Tajdari",

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AU - Tajdari, Farnaz

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N2 - 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.

AB - 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.

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M3 - Paper

AN - SCOPUS:85026653606

T2 - 142nd Audio Engineering Society (AES) International Convention 2017

Y2 - 20 May 2017 through 23 May 2017

ER -

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

Abstract

Conference

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