Investigation on the dynamic response and mooring of a new type spar platform

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Journal of Vibration and Shock ›› 2023, Vol. 42 ›› Issue (22) : 256-263.

YU Jingmei， LIU Yaohong， WU Shichao， DAI Wenzhi， YANG Xinle

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Abstract

This work proposed the design method of equipping the helical spoiler plates on the Spar platform of floating wind turbine.The Hydrodynamic software AQWA was secondarily developed with FORTRAN programming. The comparative study of the effect of spoiler spiral arrangement height on the dynamic response of floating wind turbine Spar platform and the effect on the dynamic response and mooring tension of the platform after the installation of mooring buoy on the spoiler platform. The results show that the radiation damping of the spoiler platform is improved in the direction of surge, heave and pitch compared with the original platform, while the surge, heave and pitch response amplitude operators of the spoiler platform are reduced compared with the original platform.Under wind wave coupling, spoiler can reduce the surge and pitch response of the platform and suppress the heave response to some extent. Installation of spoiler can reduce the rotor thrust, platform mooring tension has increased. This mooring installation buoy float, in the effective reduction of mooring tension at the same time can suppress the platform surge, heave motion response, the pitch motion is less affected.

Key words

floating wind turbine / Spar platform / spoiler / dynamic response / mooring tension；buoy

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YU Jingmei， LIU Yaohong， WU Shichao， DAI Wenzhi， YANG Xinle. Investigation on the dynamic response and mooring of a new type spar platform[J]. Journal of Vibration and Shock, 2023, 42(22): 256-263

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