A point collocation approach to modelling large dissipative silencers
نویسندگان
چکیده
منابع مشابه
Analytical approach for sound attenuation in perforated dissipative silencers
A two-dimensional analytical solution is developed to determine the acoustic performance of a perforated single-pass, concentric cylindrical silencer filled with fibrous material. To account for the wave propagation through absorbing fiber and perforations, the complex characteristic impedance, wave number, and perforation impedance are employed. With expressions for the eigenvalues and eigenfu...
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The acoustic characteristics of a hybrid silencer consisting of two dissipative chambers and a Helmholtz resonator are investigated first computationally and experimentally. Complex wave number and characteristic impedance are used for the dissipative chambers to account for the wave propagation through absorbing material. Three-dimensional boundary element method (BEM) is employed to predict t...
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ژورنال
عنوان ژورنال: Journal of Sound and Vibration
سال: 2005
ISSN: 0022-460X
DOI: 10.1016/j.jsv.2004.10.016