HELS Based Acoustic Holographic Measurements to Evaluate Structure-Borne Noise

2007-01-2281

05/15/2007

Event
SAE 2007 Noise and Vibration Conference and Exhibition
Authors Abstract
Content
General Motors (GM) recently purchased an acoustic holography system based on the Helmholtz Equation Least Squares (HELS) methodology. Typically acoustic holography has utilized planar transformation of the Fourier acoustic equations. General Motors conducted a variety of experiments on a simple well understood structure. This enabled us to understand the setup parameters and confirm the manufacturer's claims for accuracy. Measurements on the structure were taken using the HELS based equipment and a laser vibrometer. Conclusions are drawn on how to set up the equipment for future testing on vehicles.
Meta TagsDetails
DOI
https://doi.org/10.4271/2007-01-2281
Pages
10
Citation
Reilly, S., and Zhu, J., "HELS Based Acoustic Holographic Measurements to Evaluate Structure-Borne Noise," SAE Technical Paper 2007-01-2281, 2007, https://doi.org/10.4271/2007-01-2281.
Additional Details
Publisher
Published
May 15, 2007
Product Code
2007-01-2281
Content Type
Technical Paper
Language
English