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Coupled FEM/BEM for control of noise radiation and sound transmission using piezoelectric shunt damping
Institution:1. Conservatoire National des Arts et Métiers (Cnam), Structural Mechanics and Coupled Systems Laboratory, Chair of Mechanics, case 353, 2 rue Conté, 75003 Paris, France;2. PUC-Rio, Mechanical Engineering Department, Rua Marques de Sao Vicente, 225 Gavea, Rio de Janeiro, RJ CEP 22453-900, Brazil;1. Laboratoire Vibrations Acoustique, INSA-Lyon, Université de Lyon, F-69621 Villeurbanne, France;2. Institut für Psychologie, Technische Universität Darmstadt, Alexanderstr. 10, 64283 Darmstadt, Germany;1. LOMC, UMR 6294 CNRS, Université du Havre, 75 rue Bellot, 76600 Le Havre, France;2. IEMN, UMR 8520 CNRS, ISEN, 41 boulevard Vauban, 59800 Lille, France;1. Universitá degli Studi di Genova, Department of Mechanical, Energy, Management and Transportation Engineering, Via Opera Pia, 15A – 16145 Genoa, Italy;2. Universitá degli Studi di Parma, Department of Engineering and Architecture, Parco Area delle Scienze, 181/A – 43124 Parma, Italy;3. Politecnico di Milano, Department of Mechanical Engineering, Via La Masa, 34 - 20156 Milan, Italy;4. Technical University of Denmark, Department of Mechanical Engineering, Nils Koppels Allé, building 403, DK-2800 Kongens Lyngby, Denmark;1. Institut de Recherche Technologique Jules Verne, LAUM UMR 6613, Av. O. Messiaen, 72085 Le Mans, France;2. Laboratoire d’acoustique de l’Université du Mans, Le Mans Université, CNRS, LAUM UMR 6613, Av. O. Messiaen, 72085 Le Mans, France;3. École Centrale de Lyon, CNRS, LTDS UMR 5513, Av. G. De Collongue, 69134 Ecully, France;4. FEMTO-ST Institute, Department of Applied Mechanics, Besançon, France
Abstract:In this paper, we present a coupled finite element/boundary element method (FEM/BEM) for control of noise radiation and sound transmission of vibrating structure by passive piezoelectric techniques. The system consists of an elastic structure (with surface mounted piezoelectric patches) coupled to external/internal acoustic domains. The passive shunt damping strategy is employed for vibration attenuation in the low frequency range. The originality of the present paper lies in evaluating the classically used FEM/BEM methods for structural–acoustics problems when taking account smart systems at the fluid–structure interfaces.
Keywords:Finite element method  Boundary element method  Vibroacoustic  Piezoelectric patches  Shunt damping technique  Noise and vibration attenuation
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