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Investigating the mechanisms of motion response amplification for a cylindrical FPSO under wave-current coupling
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DOI：10.1016/j.oceaneng.2026.125861.png)
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Abstract
En 中文
• Heave amplifies selectively (17.5% at 14s vs 4.2% at 16s) due to wave-current interaction governed by Uc/C ratio modulating energy transfer. • Wave-current coupling induces flow asymmetry via bottom vortices, generating steady pressure differentials causing surge shift, heave sinking, and negative pitch. • Nonlinear amplification occurs as surge quadruples via drag, pitch doubles from moments, and heave randomness increases due to bottom vortex shedding.
Keywords:
wave-current coupling
motion response amplification
cylindrical FPSO
bottom vortices
nonlinear dynamics
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