Elsevier

Applied Ocean Research

Volume 17, Issue 4, August 1995, Pages 233-243
Applied Ocean Research

The hydrodynamic behaviour of long floating structures in directional seas

https://doi.org/10.1016/0141-1187(95)00011-9Get rights and content

Abstract

The diffraction/radiation boundary value problem arising from the interaction of oblique waves with freely floating long structures is studied using finite-element techniques. Further, the hydrodynamic behaviour of two-dimensional horizontal floating structures under the action of multi-directional waves has been studied. The linear transfer function approach is used to determine the wave exciting forces and motion responses of a structure of finite length in short-crested seas. The directional spectrum is obtained from a unidirectional spectrum with an associated frequency-dependent or frequency-independent cosine power-type energy spreading function. Based on the numerical predictions, the motions and forces on a rectangular floating structure experiencing unidirectional and multi-directional wave fields are computed.

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