Boundary Element Approaches For Acoustic
Computation Of Perforated Silencers
Author(s)
ang Yang & Zhenlin Ji
Abstract
Substructure boundary element method, direct mixed-body boundary element
method, and substructure direct mixed-body BEM are used to calculate the
acoustic attenuation characteristics of silencers with perforated facing. The
transmission loss predictions of straight-through perforated tube silencers by the
three approaches agree well with experimental measurements in the literature.
The computational efficiency is compared in the paper which shows that the
substructure direct mixed-body BEM can save a large amount of computation
time for the large muffler contains complex internal geometry. Test case of a
hybrid expansion chamber silencer with perforated facing is analyzed in the
paper.
Keywords: boundary element method, substructure approach, direct mixedbody
BEM, perforated silencers, computational efficiency.
Keywords
boundary element method, substructure approach, direct mixedbody
BEM, perforated silencers, computational efficiency
Related Book
Other papers in this volume
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