Research on the effect of increasing the column on the deepcwind semi-submersible platform
Aiming at the influence of the platform structure on the semi-submersible platform,focusing on the changes in the hydrodynamic performance of the platform when the column is increased,the DeepCwind semi-submersible platform is designed according to the current international trend,and the structure of the column is increased.Based on the three-di-mensional potential flow theory,AQWA is used to analyze the frequency domain of the two platforms under the action of regular waves.Considering the environmental conditions under a certain combined action of wind,waves and currents,the time domain analysis is carried out.The comparative analysis of the calculation results of the two shows that:after increas-ing the column,the peaks of the sway,roll and yaw degrees of freedom in the frequency domain analysis advance and in-crease,the high frequency band tends to be consistent,and the pitch degree of freedom is slightly lower in the low frequency.Compared with the original DeepCwind platform,there is little difference between the surge and the heave.The time domain analysis under certain environmental conditions found that increasing the column is beneficial to suppress the motion in the two degrees of freedom directions of heave and pitch.
万方数据
维普
