深海半潜式平台的水动力及系泊系统时域耦合分析  

Analysis on the Hydrodynamic Performance and Mooring Scheme of the Deepwater Semi-submersible Platform

作　　者：王玮[1] 刘小飞 祝庆斌 

机构地区：[1]哈尔滨工程大学船舶工程学院,哈尔滨150001

出　　处：《中国海洋平台》2015年第6期49-54,共6页China offshore Platform

基　　金：国家自然科学基金(51209047)

摘　　要：该文利用有限元分析软件ANSYS和水动力计算软件AQWA进行了有限元建模和水动力特性研究。考虑复杂的海洋环境载荷,包括随机波浪载荷、风载荷和流载荷的多重作用,浮式平台与系泊缆索之间的相互影响,采用时域耦合的分析方法对深海领域复杂工况下的半潜式钻井平台的水动力性能和系泊性能进行了分析。研究结果表明,规则波频域下,在纵荡、横荡、垂荡、横摇、纵摇、艏摇各方向上,附加质量和附加阻尼随着波浪频率的增加,呈现先增大后减小的趋势,但局部均有起伏,平台在高频波浪区域内运动性能表现良好,响应幅值较小。同时,通过将浮式平台和系泊系统进行时域耦合分析,得出在环境力入射角为45°时,平台运动响应的幅值和系泊系统缆索的最大张力符合规范要求。ANSYS and AQWA are used to analyze the hydrodynamic performance of semi-submersible platform.The complexity of the marine environment load,including random wave loads,wind loads and current loads,in addition the interaction of floating platforms and mooring ropes are considered.Time-domain analysis method is used to analyze the hydrodynamic performance about the semi-submersible drilling platform and mooring performance in the complex conditions of the deep sea areas.The results showed that under regular wave frequency domain analysis,in vertical surge,sway,heave,roll,pitch,yaw all directions,with increasing frequency waves,the additional mass and damping generally increases first and then subtract small trend,but local has ups and downs.The platform has good performance in the area of high-frequency waves and response amplitude is small.According to time domain coupling analysis of floating platform and mooring system,the platform motion response amplitude and rope mooring system maximum tension are calculated when the environmental forces incident angle of 45 degrees and the maximum tension conforms to the requirements of the specification.

关 键 词：半潜式平台 水动力性能 系泊系统 时域耦合分析 

分 类 号：P75[天文地球—海洋科学]