A Time-Domain Approach for Multi-Pass Perforated Tube Silencers 960307
A time-domain computational approach is applied to analyze the acoustic performance of multiple-pass silencers containing perforated tube sections. The nonlinear, one-dimensional method may readily include temporal and spatial variations in sound pressure level, orifice flow velocities, and mean duct flow, all of which affect the behavior of perforated tube elements. The transmission loss characteristics of two anechoically-terminated multiple pass muffler configurations are determined computationally and experimentally for the limiting case of low sound pressure levels and zero mean flow. Comparisons between the numerical results and experimental data are shown to correlate well for frequencies where the one-dimensional assumption is justified.
Citation: Dickey, N., Selamet, A., and Novak, J., "A Time-Domain Approach for Multi-Pass Perforated Tube Silencers," SAE Technical Paper 960307, 1996, https://doi.org/10.4271/960307. Download Citation
Author(s):
N. S. Dickey, A. Selamet, J. M. Novak
Pages: 7
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Design and Development of New Engines and Components-SP-1138
Related Topics:
Pressure
Transmissions
Mufflers
Acoustics
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