Modal Vibration Control Of Submarine Hulls
Author(s)
B. Alzahabi
Abstract
Cylindrical shells are widely used in many structural designs, such as offshore
structures, liquid storage tanks, submarine hulls, and airplane hulls. Most of
these structures are required to operate in a dynamic environment.
The acoustic signature of submarines is very critical in such a high
performance structure. Submarines are not only required to sustain very high
dynamic loadings at all times, but must also be able to maneuver and perform
their functions under the sea without being detected by sonar systems.
Reduction of sound radiation is most efficiently achieved at the design stage, and
the acoustic signatures may be determined by considering operational scenarios
and modal characteristics. The acoustic signature of submarines is generally of
two categories: broadband which has a continuous spectrum; and a tonal noise
which has discrete frequencies.
Therefore
Keywords
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