A General Linear Hydroelasticity Theory of Floating Structures Moving in a Seaway

The dynamics of an elastic beam floating on the surface of disturbed water has formed the basis of a fairly comprehensive linear theory of hydroelastic behaviour of ships in waves. The existing theory cannot easily be extended to floating vehicles of more complicated shape (such as semi-submersibles...

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Bibliographic Details
Published in:Philosophical Transactions of the Royal Society of London, Series A: Mathematical and Physical Sciences Series A: Mathematical and Physical Sciences, 1986-04, Vol.316 (1538), p.375-426
Main Authors: Bishop, Richard Evelyn Donohue, Price, William Geraint, Wu, Yousheng
Format: Article
Language:English
Subjects:
Amplitude
Applied sciences
Boundary conditions
Coordinate systems
Damping
Exact sciences and technology
Flexible structures
Floating structures
Ground, air and sea transportation, marine construction
Hydrodynamics
Marine construction
Ship hulls
Ships
Waves
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Summary:The dynamics of an elastic beam floating on the surface of disturbed water has formed the basis of a fairly comprehensive linear theory of hydroelastic behaviour of ships in waves. The existing theory cannot easily be extended to floating vehicles of more complicated shape (such as semi-submersibles), or to fixed offshore structures. A general method is presented, by which finite elements permit any three-dimensional elastic structure to be admitted in a linear hydroelastic theory. Sinusoidal waves provide the excitation of the structure and the fluid flow is three-dimensional. Some examples are given which illustrate the use of the theory and expose behaviour that has not been encountered hitherto.
ISSN:1364-503X
0080-4614
0962-8428
1471-2962
2054-0272
DOI:10.1098/rsta.1986.0016