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One-way Coupled Response Analysis between Floating Wind-Wave Hybrid Platform and Wave Energy Converters
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 Title & Authors
One-way Coupled Response Analysis between Floating Wind-Wave Hybrid Platform and Wave Energy Converters
Lee, Hyebin; Bae, Yoon Hyeok; Cho, Il-Hyoung;
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 Abstract
In this study, a six degree-of-freedom motion analysis of a wind-wave hybrid platform equipped with numerous wave energy converters (WECs) was carried out. To examine the effect of the WECs on the platform, an analysis of one-way coupling was carried out, which only considered the power take-off (PTO) damping of the static WECs on the platform. The equation of motion of a floating platform with mooring lines in the time domain was established, and the responses of the one-way coupled platform were then compared with the case of a platform without any coupling effects from the WECs. The hydrodynamic coefficients and wave exciting forces were obtained from the 3D diffraction/radiation pre-processor code WAMIT based on the boundary element method. Then, an analysis of the dynamic responses of the floating platform with or without the WEC effect in the time domain was carried out. All of the dynamics of a floating platform with multiple wind turbines were obtained by coupling FAST and CHARM3D in the time domain, which was further extended to include additional coupled dynamics for multiple turbines. The analysis showed that the PTO damping effect on platform motions was negligible, but coupled effects between multiple WECs and the platform may differentiate the heave, roll, and pitch platform motions from the one without any effects induced by WECs.
 Keywords
Wave energy converter;Wind turbine;Floating platform;Coupled analysis;
 Language
Korean
 Cited by
 References
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