Matsipura V. Acoustic of a field in not initial areas

On the basis of development of a method of partial areas, by way of use of sev-eral systems of coordinates and continuation of boundary conditions on physical sites of boundary surfaces, the class of problems of radiation and sound scattering which suppose construction of the common decision is essentially expanded. The lead analytical work and further use of computer facilities has allowed to con-struct steady and effective algorithms of calculations of sound fields in not initial areas. The analysis of sound fields in irregular wave guides, such as a wave guide with a break or branch, interface flat and wedge-shaped wave guides, wedge-shaped a wave guide with asymmetric borders is lead. The field of sound scatter-ing wedge-shaped is investigated by objects of the final sizes. It lead to the analy-sis of the power and directed properties of a lattice from coaxial piezoceramic environments with face screens in case of continuous and pulse excitation of envi-ronments of a lattice.