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On the Influence of Artificial Cavitation on Underwater Noise Radiation From a Ship Hull

[+] Author Affiliations
Konstantin I. Matveev

Art Anderson Associates

Paper No. IMECE2004-59075, pp. 93-100; 8 pages
doi:10.1115/IMECE2004-59075
From:
  • ASME 2004 International Mechanical Engineering Congress and Exposition
  • Noise Control and Acoustics
  • Anaheim, California, USA, November 13 – 19, 2004
  • Conference Sponsors: Noise Control and Acoustics Division
  • ISBN: 0-7918-4715-2 | eISBN: 0-7918-4178-2, 0-7918-4179-0, 0-7918-4180-4
  • Copyright © 2004 by ASME

abstract

With increasing speed and power of next-generation combat and transport surface ships, the reduction of the magnitude of the ship acoustic signature becomes a vital task of naval engineering. Another related problem is to decrease the self-noise affecting operations of the ship’s own sonar. Currently, sponsors of naval research are encouraging the investigation of new methods for noise reduction, alternative to the usual weight-increasing enhancement of damping and insulating structures. One of the advanced concepts for future marine transportation is the use of artificial cavitation on a hull to reduce hydrodynamic drag and associated power requirements. Since this concept involves the application of air layers and possibly bubbly mixtures at the hull surfaces, underwater sound radiation properties of this ship type can differ significantly from those of traditional vessels. This paper deals with some major components of ship noise originating inside a ship and on its hull surface. The effects of the presence of gaseous layers on underwater radiation of ship’s noise are considered. Estimated results are presented for typical parameters of ships with artificial cavitation.

Copyright © 2004 by ASME

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