As the speed and power of surface ships rise, the reduction of ship acoustic signature and self-noise is becoming an important task of naval engineering. A significant decrease in underwater noise can be achieved by using gaseous layers on the ship hull. Two mechanisms for sound radiation from low-drag air-lubricated hulls are discussed.

Issue Section:
Technical Briefs
Keywords:
naval engineering, acoustic noise, structural acoustics, drag, underwater sound, noise abatement, acoustic radiators
Topics:
Drag (Fluid dynamics), Hull, Noise (Sound), Ships, Radiation (Physics), Acoustics, Waves
1.
Matveev
,
K. I.
, 2005, “
Application of Artificial Cavitation for Reducing Ship Drag
,”
Oceanic Engineering International
,
9
(
1
), pp.
1
–
7
.
2.
Latorre
,
R.
,
Miller
,
A.
, and
Philips
,
R.
, 2003, “
Micro-Bubble Drag Reduction on a Model SES Catamaran
,”
Ocean Eng.
0029-8018,
30
(
17
), pp.
2297
–
2309
.
Crossref
Search ADS
 
3.
Blackstock
,
D. T.
, 2000,
Fundamentals of Physical Acoustics
,
Wiley-Interscience
, New York.
4.
Junger
,
M. C.
,
1997
, “
Sound Propagation in Two-Phase Systems
,”
Handbook on Acoustic Characteristics of Turbomachinery Cavities
,
M. J.
Lucas
 et al., eds.,
ASME
, New York, pp.
80
–
90
.
5.
Cremer
,
L.
,
Heckl
,
M.
, and
Ungar
,
E. E.
,
1988
,
Structure-Borne Sound
,
Springer-Verlag
, New York.
Copyright © 2005
 by American Society of Mechanical Engineers
You do not currently have access to this content.