针对平台结构形式对半潜式平台的影响，关注增大立柱时的平台水动力性能变化情况，针对当前国际流行设计DeepCwind半潜式平台，进行增大立柱的结构改变。基于三维势流理论，利用AQWA对2种平台进行规则波的频域分析。并考虑在一定的风浪流联合作用下的环境条件，对其进行时域分析。对其两者计算结果对比分析发现：增大立柱后，频域分析下的横荡和横摇、首摇自由度峰值提前且增大，高频段趋于一致，纵摇自由度在低频略低于原DeepCwind平台，而纵荡和垂荡方面相差不大。一定环境条件下的时域分析发现，增大立柱有利于抑制垂荡、纵摇两自由度方向的运动。
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-dimensional 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 increasing the column, the peaks of the sway, roll and yaw degrees of freedom in the frequency domain analysis advance and increase, 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.
2024,46(4): 98-102 收稿日期：2023-03-06
DOI：10.3404/j.issn.1672-7649.2024.04.019
分类号：TK83; P751
作者简介：刘振强(1985-),男,硕士,高级工程师,研究方向为舰船机电产品设计及海工开发
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