Optimization of Sound Packages for Commercial Vehicles Using Panel Contribution Analysis

2009-01-2241

05/19/2009

Event
SAE 2009 Noise and Vibration Conference and Exhibition
Authors Abstract
Content
Microphone array-based Panel Contribution Analysis (PCA) is a new technique used for Sound Package design optimization for commercial vehicles. The technique allows for noise control performance and cost optimization.
This technique ranks the contribution of fully trimmed structural panels (e.g. floor, roof, etc.) and leaks in a vehicle cabin to the noise levels experienced by a driver while the vehicle is in cruising operation. Often the noise and vibration sources (engine, transmission, exhaust, aerodynamic noise, tires, etc) cannot be easily modified, thus the only practical action to solve noise problems is to design the noise control treatments applied to the vehicle panels. Panels that have a large contribution to the noise levels at the driver's ear are heavily treated with noise control materials, whereas panels with low contribution get little to no treatment.
This paper describes a microphone array-based PCA technique, and the results of a successful application of it to optimize the interior noise level performance of a new commercial vehicle. The application results clearly indicated the dominant contributing panels to the sound pressure levels at the driver's ear.
Meta TagsDetails
DOI
https://doi.org/10.4271/2009-01-2241
Pages
14
Citation
Castillo, M., and Schuhmacher, A., "Optimization of Sound Packages for Commercial Vehicles Using Panel Contribution Analysis," SAE Technical Paper 2009-01-2241, 2009, https://doi.org/10.4271/2009-01-2241.
Additional Details
Publisher
Published
May 19, 2009
Product Code
2009-01-2241
Content Type
Technical Paper
Language
English