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

Arthur Berkhoff, Farnaz Tajdari

Research output: Contribution to conferencePaperAcademicpeer-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 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

Fingerprint

Acoustic radiators
Plate Structures
Feedforward Control
Feedforward control
Fluid structure interaction
Honeycomb
Equalization
Active Control
active control
radiators
Frequency Response
Robust control
Robust Control
Decentralized
Vibrations (mechanical)
Frequency response
Low Frequency
Well-defined
Acoustics
Cavity

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.
Berkhoff, Arthur ; Tajdari, Farnaz. / 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.
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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, 20/05/17 - 23/05/17, .

An acoustic radiator with integrated cavity and active control of surface vibration. / Berkhoff, Arthur; Tajdari, Farnaz.

2017. Paper presented at 142nd Audio Engineering Society (AES) International Convention 2017, Berlin, Germany.

Research output: Contribution to conferencePaperAcademicpeer-review

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