Absorption of a sound by a grating of resonators with a friction in a standing field

摘要

The problem of the scattering of sound from the grating of Helmholtz resonators with friction is considered. This grating is located at a distance D from the wall, characterized by reactive impedance. The solution is obtained by the self-consistent field method. It is shown that a grating of resonators with a certain friction located at the antinode pressure of the total field of the incident and reflected waves completely absorbs the reflected resonant frequency wave.