【摘要】 论文研究铰接系泊塔-油轮系统波流联合作用下的动力响应。考虑铰接塔-油轮单点系泊系统系缆刚度的非线性,将尼龙系缆处理为分段非线性刚度模型,采用M orison公式计算铰接塔的波浪载荷,采用线性波浪绕射理论计算波浪对油轮的作用,建立了两自由度耦合的分段非线性运动微分方程。计算了高177 m的铰接系泊塔和93 500 t油轮构成的FPSO系统的耦合动力响应,并讨论了系统运动对于系缆张力的影响。更多还原

【Abstract】 The paper studied the dynamic response of an ALT-Tanker system exposed to the wave and current.The nylon hawser connecting the tanker to the ALT was modeled as a piecewise nonlinear spring considering the nonlinear stiffness of the mooring cable.The hydrodynamic load on the tower was evaluated using Morison’s equation and the wave force exerted on the tanker was calculated adopting linear wave diffraction theory,the 2-DOF coupled piecewise nonlinear differential equation was established.The coupled dynamic response of an FPSO system,which include an ALT of 177m height and a 93500t tanker,was numerically computed,the influence of the system motion on the tension in the mooring hawser was discussed.更多还原