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Dynamic response of moored floating breakwaters Fraser, G. Alex


The problem of finding the response of a moored floating breakwater is examined with particular reference to the effect of the moorings on breakwater motions. A computer program has been developed in which hydrodynamic coefficients are calculated using the finite element method. The complete breakwater-mooring system is modelled using the techniques of plane-frame structural analysis. The importance of the second-order drift force in the mooring analysis is noted. Comparison is made between the motions of an unrestrained floating body and those of a body restrained by slack moorings. A simple approximation for high-frequency motions is proposed.

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