| Abstract: | The stationary scattering of a plane acoustic wave on a periodic or a doubly periodic set of piston radiators elastically
connected with a rigid screen is considered. The screen separates two half-spaces filled with media possessing different acoustic
properties. The model considered takes into account energy losses in the elastic ties between the piston radiators and rigid
screen. The problem solution in the case where only one half-space is filled with an acoustic medium is found as a special
case. The results of numerically analyzing the reflection coefficients of a plane wave as functions either of the frequency
of the incident wave or of the angle of incidence of the plane acoustic wave for different values of the parameters involved
are presented. Bibliography: 4 titles.
Translated fromZapiski Nauchnykh Seminarov POMI, Vol. 230, 1995, pp. 125–137.
Translated by G. L. Nikitin. |
