文章摘要
刘峥,李焱,王浩,唐友刚,童波.两平台靠泊状态耦合运动响应分析[J].,2019,59(5):501-508
两平台靠泊状态耦合运动响应分析
Analysis of coupled motion response for two platforms during berthing
  
DOI:10.7511/dllgxb201905009
中文关键词: 半潜式平台  两平台靠泊  动力定位  耦合运动响应
英文关键词: semi-submersible platform  two platforms berthing  dynamic positioning  coupled motion response
基金项目:国家工业与信息化部项目(G014614002).
作者单位
刘峥,李焱,王浩,唐友刚,童波  
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中文摘要:
      研究两座半潜式平台靠泊状态耦合动力响应特性,确定安全作业条件.针对通过栈桥连接的两座半潜式平台,考虑风浪流荷载作用,建立两座平台水动力分析模型.基于三维势流理论,在频域内计算旁靠作业中两半潜平台多体耦合水动力性能,分析不同浪向角对平台所受波浪荷载的影响.基于Kalman滤波控制算法,考虑不同海况条件分析靠泊系统的定位能力,并根据位移上限条件得出了可进行靠泊作业的海况.结果表明,二阶波浪荷载对平台水动力相互作用存在影响.斜浪可作业海况最高、横浪次之,纵浪时可进行靠泊作业的海况最低.所得研究结果对于两平台安全靠泊具有参考意义.
英文摘要:
      The coupling dynamic response characteristics of two semi-submersible platforms in berthing state are studied to determine the safe working conditions. For the two semi-submersible platforms connected through the trestle bridge, the hydrodynamic analysis models of the two platforms are established considering the action of wind, wave and current loads. Based on the three-dimensional potential flow theory, the multi-body coupling hydrodynamic performance of two semi-submersible platforms during berthing is calculated in the frequency domain, and the effects of different wave directions on the wave loads of the platform are analyzed. Based on the Kalman filter control algorithm, the positioning capability of the berthing system is analyzed in view of different sea conditions. Besides, the sea conditions under which berthing operations can be safely conducted are obtained according to the upper limit conditions of displacement. According to the results, the second order wave loads will influence the coupling hydrodynamic performance. Moreover, the available operational sea conditions under the oblique seas are the highest, while those under beam seas are lower. The available berthing operational sea conditions under longitudinal seas are the most critical. The results have reference function for safe berthing of two platforms.
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