Viscous Relaxation法を用いた海洋ケーブル構造の静的非線形解析について

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This paper deals with nonlinear analysis of ocean cable systems using the viscous relaxation method. An isoparametric cable element is formulated on the base of the theory of large elastic deformation and the principle of virtual work. The hydrodynamic force due to current is obtained by the Morison's equation. To demonstrate the accuracy and convergence of the present method, several cable problems such as equilibrium configuration of inclined cable and towing problem are analysed. A good accuracy is obtained by comparison with other numerical solusions and experimental values. The behaviors of a catenary anchored cable and a tension leg platform due to uniform current are also discussed.
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