Sound radiation from a thin infinite plate in contact with a layered inhomogeneous fluid

摘要: Abstract In this paper the sound radiation from a thin infinite plate in contact with layered inhomogeneous fluid subjected to single point excitation is studied. Sources contributing inhomogeneity are discussed, and analytically expressed as field. Using Hankel transform, equations governing fluid–structure interaction solved. The asymptotic form of pressure at far field obtained using method stationary phase. Numerical examples show that patterns an much more complicated than homogeneous fluid. Three different (bell, disc, their combination) were observed numerical examples, sensitive parameters. Depending on frequency, either magnified or reduced compared And beyond some frequency pressures almost zero.