... by the radial displacement dominant mode of the shell. Moreover, vibration suppression is greatly influenced by the strong couplings among control channels. According to these results, it can be concluded that the proposed method is effective in the analysis of underwater sound radiation control of cylindrical...

... acoustics underwater sound underwater vehicles A submerged vessel is excited by low frequency mechanical excitation from the propeller. The vibration of the hull surface in contact with the surrounding water results in high level of radiated noise. In the case of defense vessels, minimization...

...) that rose through the bed with a speed that depends on their size. The nucleation of bubbles is found to be of the heterogeneous type. 23 03 2007 14 05 2008 14 10 2008 bubbles cavitation granular materials nonlinear acoustics underwater sound vibrations Granular materials...

..., but approaching the resonance frequency. To determine the influence of gaseous layers on underwater sound radiation by flexural waves in the hull plating, let us define the power loss as follows: 3 PL = − 10 log 10 ( ∣ A L ∕ A L 0 ∣ 2 ) where A L is the pressure...

... . Manuscript received May 2000; revised March 2002. Associate Editor: J. H. Ginsberg. 01 May 2000 01 March 2002 20 09 2002 underwater sound cavitation nonlinear acoustics vibrations acoustic signal processing random processes acoustic pulses The cavitation process...

... on Vibration and Sound for publication in the JOURNAL OF VIBRATION AND ACOUSTICS . Manuscript received Nov. 1999; revised March 2000. Associate Technical Editor: R. L. Clark. 01 Nov 1999 01 March 2000 acoustic radiators acoustic wave production vibrations acoustic field underwater...