공기 동역학 하중이 부유식 해상 풍력 발전기의 계류선 응답에 미치는 영향에 관한 연구
A Study on Effect of Aerodynamic Loads on Mooring Line Responses of a Floating Offshore Wind Turbine
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This paper presents effect of aerodynamic loads on mooring line responses of a floating offshore wind turbine. A Matlab code based onblade element momentum (BEM) theory is developed to consider aerodynamic loads acting on NREL 5MW wind turbine. Theaerodynamic loads are coupled with time-domain hydrodynamic analyses using one-way interaction scheme of the wave and windloads. A semi-submersible floating platform which is from Offshore Code Comparison Collaborative Continuation(OC4) DeepCWindplatform is used with catenary mooring lines simply composed of studless chain links. Average values of mooring peak tensionsobtained from aerodynamic load consideration are significantly increased compared to those from simple wind drag force consideration. Consideration of aerodynamic loads also yield larger tension ranges which can be important factor to reduce fatigue life of the mooringlines.
Abstract
This paper presents effect of aerodynamic loads on mooring line responses of a floating offshore wind turbine. A Matlab code based onblade element momentum (BEM) theory is developed to consider aerodynamic loads acting on NREL 5MW wind turbine. Theaerodynamic loads are coupled with time-domain hydrodynamic analyses using one-way interaction scheme of the wave and windloads. A semi-submersible floating platform which is from Offshore Code Comparison Collaborative Continuation(OC4) DeepCWindplatform is used with catenary mooring lines simply composed of studless chain links. Average values of mooring peak tensionsobtained from aerodynamic load consideration are significantly increased compared to those from simple wind drag force consideration. Consideration of aerodynamic loads also yield larger tension ranges which can be important factor to reduce fatigue life of the mooringlines.
참고문헌 (14)
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