ANALYSIS OF VIBRATIONS OF A SPATIAL ACOUSTIC SYSTEM BY THE BOUNDARY INTEGRAL-EQUATIONS METHOD

A coupled structural-acoustical problem of vibrations for the spatial acoustic system is considered. The acoustic system is a rectangular bo x consisting of elastic plates. The interactions between the structure and the acoustic media both inside and outside of the structure are t aken into account. One of the plates consists of two parts: an annular plate and a circular one, which is inserted in the hole. This structu re is a simplified model of an audio system consisting of several loud speakers mounted on the lateral surface of a rectangular thin-walled b ox. The loudspeaker, typically consisting of a conical shell of variab le thickness with electromagnet attached to the shell, is modeled by a thin plate of a uniform thickness. The two level system of boundary i ntegral equations is formulated and a numerical analysis of the vibrat ions excited by the load applied to the circular plate is performed.