holloway_bem_acoustic_anziam_2004.pdf (165.88 kB)
Boundary element methods in the prediction of the acoustic damping of ship whipping vibrations
journal contribution
posted on 2023-05-25, 22:17 authored by Holloway, DS, Thomas, GA, Davis, MRDamping 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.
History
Publication title
Australian and New Zealand Industrial and Applied Mathematics JournalVolume
45Article number
ENumber
EPagination
845-856ISSN
1446-8735Publication status
- Published
Repository Status
- Open
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