Parametric Muffler


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Abstract


This paper represents the alternative approach in designing of acoustical mufflers and alternative analytical model of parametric acoustical device. The suggested approach (and device model) provides passing onward of gas flow and reflection back of the acoustical waves, due to very fast temporal modulation of muffler parameters. Using concrete example, it is shown, that parametric muffler can have less wave-gabarits, less energy losses of engine, and less acoustical power at output, than in traditional muffler.
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Keywords


Wave Invertors; Rotary Switching; Sound Reflection; Gas Passing; Sound in Ducts

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