Axisymmetric Wave Transmission Through Wall Thickness Discontinuities in Fluid-Filled Cylindrical Shells

摘要

The free vibration motion of the shell is described by the Donnell-Mushtari equations. Dispersion curves for wave behavior in fluid filled shells are obtained and the values are used in equations resulting from an approximate analysis involving the application of boundary conditions across the system discontinuity. Both continuity of shell and fluid wave impedances are included in the analysis. The presence of the fluid is shown to lower the discontinuity transmission loss at frequencies above the shell ring frequency.