Archives of Acoustics, 16, 3-4, pp. 461-474, 1991

Acoustic filters with two perforated tubes

G. Brzózka
Institute of Machine Construction and Exploitation, Engineering College in Zielona Góra, 65-246 Zielona Góra, ul. Podgórna 50
Poland

This paper presents a physical and mathematical model of a filter. It was built on the basis of segmentation of its components and description of acoustic properties of these components with a transmission matrix. Also formulae for calculating transmission matrices for many specific solutions of the filter have been given in a convenient and generalized form. The presented model is limited to: the conditions of propagation of a harmonic plane acoustic wave, small dimensions of the holes in the perforation and laminar flow through these holes.
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