ACOUSTICS ABSORBANTS MADE WITH VIBRATING PERFORATED PLANES

Alin Cosmin TOT, Mariana ARGHIR

Abstract


This work aims to establish the relationships, what determines a specific acoustic impedance structure, consisting of three elements (resonators, membrane perforated planes and an air cavity located behind them), usefull outside environment.  Such analysis is carried out starting from the quantization elements encountered in the literature, micro perforated panels, as well as the functionality of a vibrating membrane.


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References


[MAA 87] MAA D Y., Micro-perforated wideband absorbers. Noise Control Engineering Journal, 29(3), 77–84 (1987)

[ALL 93] ALLARD J F., Propagation of Sound in Porous Media, Modeling Sound Absorbing Materials. Elsevier (1993)

[ING 50] U. Ingard, S. Labate, Acoustic Circulation Effects and the Nonlinear Impedance of Orifices, J. Acoust. Soc. Am., 22, 211‐218 (1950).

[ROS -] Rostand Tayong, Thomas Dupont, and Philippe Leclaire, On the variations of acoustic absorption peak with flow velocity in Micro‐Perforated Panels at high level of excitation, Laboratoire de Recherche en Mécanique et Acoustique (LRMA), ISAT, Université de Bourgogne, Nevers, France, 2000, pag 14

[RAN-00] Rolf Tore Randeberg, Perforated Panel Absorbers with Viscous Energy Dissipation Enhanced by Orifice Design, doctoral thesis; Norwegian University of Science and Technology; Norwegian; Iunie 2000, 134 pg.

[BER-96] Leo L. Beranek, Acoustics, Acoustical Society of America, ISBN 0-88318-494-X, New York, S.U.A, 1996, 255 pg.

[FAH-05a] Frank Fahy, and John Walker, Advanced Applications in Acoustics, Noise and Vibration; Taylor & Francis e-Library, ISBN 0-203-64513-8; USA and Canada; 2005; 640 pg.

[KIN-00] Kinsler, L.E., Frey, A.R., Coppens, A.B., Sanders, J.V.; Fundamentals of Acoustics, John Wiley and Sons, Inc., ISBN 0 – 471 – 84789 – 5; 2000, New York SUA, [HAR-02] Cyril M. Harris, Allan G. Piersol, Harris’ Shock and vibration handbook, Fifth Edition, McGraw-Hill, ISBN 0-07-137081-1, SUA, 2002, 1457 pg

[KUT-07] Heinrich Kuttruff, Acoustics, An Introduction, Taylor & Francis, ISBN 0–203–97089–6; New York, S.U.A, 2007, 472 pg.


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