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Abstract

Damping of ship whipping vibrations following a slam due to wave
impact is traditionally assumed to be primarily of material or structural
origin. However, several mechanisms of energy dissipation to the
surrounding water exist, including gravity and acoustic waves. Neither
transports much energy for the lowest frequency modes, in which
the acoustic wavelength may be an order or magnitude greater than
the ship length whereas the gravity wavelength is at least an order of
magnitude shorter than the ship beam. However, the acoustic damping
ratio increases as the fourth power of frequency, becoming significant
for higher frequency modes.

Item Type:	Article
Authors/Creators:	Holloway, DS and Thomas, GA and Davis, MR
Journal or Publication Title:	Australian and New Zealand Industrial and Applied Mathematics Journal
ISSN:	1446-8735
Item Statistics:	View statistics for this item

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