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Numerical simulation of passive–active cells with microperforated plates or porous veils

Bermúdez, A. and Gamallo, P. and Hervella-Nieto, L. and Prieto, A. (2010) Numerical simulation of passive–active cells with microperforated plates or porous veils. Journal of Sound and Vibration , 329 (16). pp. 3233-3246. ISSN 0022-460X. https://resolver.caltech.edu/CaltechAUTHORS:20100609-082201825

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Abstract

The main goal of this work consists in the numerical simulation of a multichannel passive–active noise control system based on devices involving a particular kind of cell. Each cell consists of a parallelepipedic box with all their faces rigid, except one of them, where a porous veil or a rigid micro-perforated plate (MPP) is placed. Firstly, the frequency response of a single passive cell is computed, when it is surrounded by an unbounded air domain (an anechoic room) and harmonic excitations are imposed. For the numerical solution of this three-dimensional problem, the original unbounded domain is truncated by using exact perfectly matched layers (PML) and the resulting partial differential equation (PDE) is discretized with a standard finite element method. Secondly, the passive cells are transformed into active by assuming that the opposite face to the passive one may vibrate like a piston in order to reduce noise. The corresponding multichannel active control problem is stated and analyzed in the framework of the optimal control theory. A numerical method is proposed to assess and compare different control configurations.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.jsv.2010.02.011 DOIUNSPECIFIED
Additional Information:© 2010 Elsevier. Received 29 June 2009; revised 26 January 2010; accepted 9 February 2010. Handling Editor: J. Lam. Available online 20 March 2010. The work of A. Bermúdez was partially supported by Ministerio de Educación y Ciencia of Spain under Grant MTM2008-02483 and Xunta de Galicia Grant 2006/98. The work of P. Gamallo was partially supported by Ministerio de Educación y Ciencia of Spain under Grants MTM2008-02483 and 18-08-463B-750, and by Xunta de Galicia under Grant PGIDIT07PXIB105257PR. The work of L. Hervella-Nieto was partially supported by Ministerio de Educación y Ciencia of Spain under Grants MTM2008-02483 and MTM2007-67596-C02-01 and by Xunta de Galicia under Grant PGIDIT07PXIB105257PR. The work of A. Prieto was partially supported by Ministerio de Educación y Ciencia of Spain under Grant MTM2008-02483 and by Xunta de Galicia under Grant PGIDIT07PXIB105257PR and program Angeles Alvariño 2007/AA-076.
Funders:
Funding AgencyGrant Number
Ministerio de Educacion y Ciencia of Spain MTM2008-02483
Ministerio de Educacion y Ciencia of Spain 18-08-463B-750
Ministerio de Educacion y Ciencia of Spain MTM2007-67596-C02-01
Xunta de Galicia 2006/98
Xunta de Galicia PGIDIT07PXIB105257PR
Program Angeles Alvarino 2007/AA-076
Issue or Number:16
Record Number:CaltechAUTHORS:20100609-082201825
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20100609-082201825
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:18610
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:09 Jun 2010 16:53
Last Modified:03 Oct 2019 01:45

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