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Measuring Bulk Properties of Sound-Absorbing Materials Using the Two-Source Method
Technical Paper
2003-01-1586
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The two-source method was used to measure the bulk properties (complex characteristic impedance and complex wavenumber) of sound-absorbing materials, and results were compared to those obtained with the more commonly used two-cavity method. The results indicated that the two-source method is superior to the two-cavity method for materials having low absorption. Several applications using bulk properties are then presented. These include: (1) predicting the absorptive properties of an arbitrary thickness absorbing material or (2) layered material and (3) using bulk properties for a multi-domain boundary element analysis.
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Authors
Citation
Tao, Z., Herrin, D., and Seybert, A., "Measuring Bulk Properties of Sound-Absorbing Materials Using the Two-Source Method," SAE Technical Paper 2003-01-1586, 2003, https://doi.org/10.4271/2003-01-1586.Also In
SAE 2003 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V112-6; Published: 2004-09-15
Number: V112-6; Published: 2004-09-15
References
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