Design of a Circular Clamped Plate Excited by a Voice Coil and Piezoelectric Patches Used as a Loudspeaker-Reference-Cited by-同舟云学术

Design of a Circular Clamped Plate Excited by a Voice Coil and Piezoelectric Patches Used as a Loudspeaker

Published:2013-06-18 Issue:5 Volume:135 Page:
ISSN:1048-9002
Container-title:Journal of Vibration and Acoustics
language:en
Short-container-title:

Author:

Doaré Olivier¹,Kergourlay Gérald²,Sambuc Clément³

Affiliation:

1. ENSTA-Paristech, UME, Boulevard des Maréchaux, Palaiseau Cedex 91762, France e-mail:

2. Canon Research Centre France S.A.S, Rue de la Touche-Lambert, Cesson Sevigne 35510, France

3. ENSTA-Paristech, UME, Boulevard des Maréchaux, Palaiseau Cedex 91762, France

Abstract

In this article, a dynamical model of the vibrations and acoustic radiation of a circular clamped plate excited by a voice coil and two annular piezoelectric patches is derived. This model is used to perform an optimization of the geometries with the objective to minimize the vibration of the plate along its second and third modes, so that the plate's radiation is equilibrated between its first and fourth eigenfrequencies. Experiments are then performed and show a good agreement with the model. Radiation of the designed system presents improvements when compared to a system when only a voice coil is used.

Publisher

ASME International

Subject

General Engineering

Link

http://asmedigitalcollection.asme.org/vibrationacoustics/article-pdf/doi/10.1115/1.4024215/6341808/vib_135_5_051025.pdf

Reference37 articles.

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5. Modal Analysis of a Loudspeaker and Its Associated Acoustic Pressure Field;ASME J. Vib. Acoust.,2011

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