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Frequency-independent radiation modes of interior sound radiation: An analytical study

Hesse, Christian and Vivar Perez, Juan Miguel and Sinapius, Michael (2017) Frequency-independent radiation modes of interior sound radiation: An analytical study. Journal of Sound and Vibration (392), pp. 31-40. Elsevier. doi: 10.1016/j.jsv.2016.12.038. ISSN 0022-460X.

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Official URL: http://www.sciencedirect.com/science/article/pii/S0022460X16307982


Global active control methods of sound radiation into acoustic cavities necessitate the formulation of the interior sound field in terms of the surrounding structural velocity. This paper proposes an efficient approach to do this by presenting an analytical method to describe the radiation modes of interior sound radiation. The method requires no knowledge of the structural modal properties, which are often difficult to obtain in control applications. The procedure is exemplified for two generic systems of fluid–structure interaction, namely a rectangular plate coupled to a cuboid cavity and a hollow cylinder with the fluid in its enclosed cavity. The radiation modes are described as a subset of the acoustic eigenvectors on the structural–acoustic interface. For the two studied systems,they are therefore independent of frequency.

Item URL in elib:https://elib.dlr.de/111808/
Document Type:Article
Title:Frequency-independent radiation modes of interior sound radiation: An analytical study
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hesse, ChristianChristian.Hesse (at) dlr.dehttps://orcid.org/0000-0002-9456-5277
Vivar Perez, Juan MiguelJuan.VivarPerez (at) dlr.deUNSPECIFIED
Sinapius, MichaelMichael.Sinapius (at) dlr.deUNSPECIFIED
Date:31 March 2017
Journal or Publication Title:Journal of Sound and Vibration
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 31-40
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 (old)
Location: Hamburg
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Adaptronics
Deposited By: Hesse, Dr. Christian
Deposited On:18 Apr 2017 08:46
Last Modified:31 Jul 2019 20:09

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