Abstract The fatigue performance is key to the design of water intake risers (WIRs), which is a novel concept used to convey cooling water for liquefaction of natural gas at sea. To estimate the fatigue life, it is crucial to accurately predict the response amplitude of the WIRs, which is dominated by hydrodynamic damping. In operational conditions, the motion amplitudes of WIRs are usually smaller than their diameter, and thus leading to a flow regime of KC

中文翻译：

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取水立管疲劳分析：水动力阻尼效应和混合频时域方法

摘要 疲劳性能是进水立管（WIR）设计的关键，进水立管是一种用于输送用于海上天然气液化的冷却水的新概念。为了估计疲劳寿命，准确预测 WIR 的响应幅度是至关重要的，这主要是流体动力阻尼。在操作条件下，WIR 的运动幅度通常小于其直径，从而导致 KC 流态