Publication | Closed Access
Sound Radiation From a Finite Cylindrical Shell Covered With a Compliant Layer
23
Citations
0
References
1991
Year
AeroacousticsBiomedical AcousticsVibrationsFinite Cylindrical ShellEngineeringPhysical AcousticMechanical EngineeringAcoustic MaterialSound RadiationAcoustical EngineeringComputational ElectromagneticsSound PropagationUltrasoundCompliant LayerShell Theory
The aim of this work is to present the mathematical analysis and numerical results about sound radiation from a finite cylindrical shell covered with a compliant layer, immersed in water. The shell motion is obtained using Flu¨gge’s operator whereas the layer is described by a locally reacting material. The results are presented both in shell radial quadratic velocity and radiated power. Two major conclusions can be drawn when looking at results: (1) a reasonable stiffness layer allows one to reduce the radiated power in a large frequency domain; (2) the layer has a strong influence on the shell velocity which exhibits an antiresonance phenomenon when covered.