Finite element modeling of acoustical silencers
Keywords:Acoustic intensity, Acoustic wave absorption, Acoustic wave propagation, Boundary conditions, Computer simulation, Degrees of freedom (mechanics), Finite element method, Insertion losses, Noise pollution control equipment, Optimization, Sound insulating materials, Spectrum analysis, Vibrations (mechanical), Acoustic silencers, Vibro-acoustic couplings
AbstractThe finite element modeling of acoustic silencers was presented. The model was developed taking into account factors such as geometry, sound absorbing materials and environmental conditions. The results were excellent for purely reactive acoustic silencers and good for absorptive silencers. A more complicated model for sound absorbing materials and the inclusion of flow was required for more accurate results.
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