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Numerical analysis of finite amplitude motion of waves and a moored floating body under severe storm conditions
Author(s) -
Takikawa Kiyoshi,
Yamada Fumihiko,
Sato Keiji,
Furuta Hideki
Publication year - 1995
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.1650210403
Subject(s) - mooring , amplitude , mechanics , motion (physics) , rigid body , physics , classical mechanics , geology , marine engineering , engineering , optics
The motion of a moored floating body under the action of wave forces, which is influenced by fluid forces, shape of the floating body and mooring forces, should be analysed as a complex coupled motion system. Especially under severe storm conditions or resonant motion of the floating body it is necessary to consider finite amplitude motions of the waves, the floating body and the mooring lines as well as non‐linear interactions of these finite amplitude motions. The problem of a floating body has been studied on the basis of linear wave theory by many researchers. However, the finite amplitude motion under a correlated motion system has rarely been taken into account. This paper presents a numerical method for calculating the finite amplitude motion when a floating body is moored by non‐linear mooring lines such as chains and cables under severe storm conditions.