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Frequency-independent radiation modes of interior sound radiation: Experimental study and global active control

Hesse, Christian and Papantoni, Veatriki and Algermissen, Stephan and Monner, Hans Peter (2017) Frequency-independent radiation modes of interior sound radiation: Experimental study and global active control. Journal of Sound and Vibration, 401, pp. 204-213. Elsevier. ISSN 0022-460X

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Official URL: http://dx.doi.org/10.1016/j.jsv.2017.04.038

Abstract

Active control of structural sound radiation is a promising technique to overcome the poor passive acoustic isolation performance of lightweight structures in the low-frequency region. Active structural acoustic control commonly aims at the suppression of the far-field radiated sound power. This paper is concerned with the active control of sound radiation into acoustic enclosures. Experimental results of a coupled rectangular plate-fluid system under stochastic excitation are presented. The amplitudes of the frequency-independent interior radiation modes are determined in real-time using a set of structural vibration sensors, for the purpose of estimating their contribution to the acoustic potential energy in the enclosure. This approach is validated by acoustic measurements inside the cavity. Utilizing a feedback control approach, a broadband reduction of the global acoustic response inside the enclosure is achieved.

Item URL in elib:https://elib.dlr.de/112117/
Document Type:Article
Title:Frequency-independent radiation modes of interior sound radiation: Experimental study and global active control
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hesse, ChristianChristian.Hesse (at) dlr.dehttps://orcid.org/0000-0002-9456-5277
Papantoni, VeatrikiVeatriki.Papantoni (at) dlr.dehttps://orcid.org/0000-0002-1036-5981
Algermissen, StephanStephan.Algermissen (at) dlr.dehttps://orcid.org/0000-0002-0507-8195
Monner, Hans PeterHans.Monner (at) dlr.dehttps://orcid.org/0000-0002-5897-2422
Date:4 August 2017
Journal or Publication Title:Journal of Sound and Vibration
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:401
Page Range:pp. 204-213
Publisher:Elsevier
ISSN:0022-460X
Status:Published
Keywords:Active control, ASAC, Radiation modes, Fluid–structure interaction
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems and Cabin
Location: Hamburg
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Adaptronics
Deposited By: Hesse, Dr. Christian
Deposited On:08 May 2017 07:21
Last Modified:01 Sep 2019 03:00

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