Vibro-Acoustic Study of Flat Panel Speakers for Better In-car Entertainment

2005-01-2348

05/16/2005

Event
SAE 2005 Noise and Vibration Conference and Exhibition
Authors Abstract
Content
One potential method by which to realize better acoustic in-car entertainment with a minimum of space is to adopt very thin Flat-Panel Speakers (FPSs), which use a combination of an array of coils printed on a flexible thin plastic film and permanent magnets. In the present report, the optimal panel material was investigated through experimental modal analysis. The optimal driving unit placement over the board was then determined using FEM based modal analyses. Finally, structural modifications to the sound radiating board in order to obtain a wider efficient frequency range were investigated experimentally. Among several design alternatives, satisfactory results were obtained by either dividing the sound radiating board into virtually independent sub-panels or adding resilient damping material supported by a restraining material.
Meta TagsDetails
DOI
https://doi.org/10.4271/2005-01-2348
Pages
8
Citation
Ishihama, M., Terada, K., and Narahara, A., "Vibro-Acoustic Study of Flat Panel Speakers for Better In-car Entertainment," SAE Technical Paper 2005-01-2348, 2005, https://doi.org/10.4271/2005-01-2348.
Additional Details
Publisher
Published
May 16, 2005
Product Code
2005-01-2348
Content Type
Technical Paper
Language
English