考虑船舶粘性阻尼的海缆敷设及登陆分析  

Cable Laying and Landing Analysis Considering Viscous Damping of Cable-Laying Vessel

作　　者：姚兴隆 迟岩 韩毅平 曹淑刚 梁鹏 YAO Xing-long;CHI Yan;HAN Yi-ping;CAO Shu-gang;LIANG Peng(Zhong Neng Power-Tech Development Co.,Ltd.,Offshore Wind Power Engineering Technology Research Laboratory,Beijing 100034,China;School of Energy Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China;Bohai Oilfield Research Institute of Tianjin Branch of CNOOC Co.,Ltd.,Tianjin 300452,China)

机构地区：[1]中能电力科技开发有限公司海上风电工程技术研究室,北京100034 [2]华北电力大学能源动力与机械工程学院,北京102206 [3]中海石油有限公司天津分公司渤海石油研究院,天津300452

出　　处：《光通信研究》2020年第2期30-35,49,共7页Study on Optical Communications

基　　金：国家自然科学基金资助项目(51239008);国家能源投资集团科技资助项目。

摘　　要：高压海缆敷设是海上风电场开发的关键环节。为了提高海缆敷设与登陆的仿真模拟精度,文章采用水动力分析方法在SESAM/HydroD软件中施加粘性阻尼得到了敷缆船运动响应幅值算子(RAO)。在Orcaflex软件中建立敷缆船-高压海缆-系泊系统耦合模型,研究了船舶粘性阻尼对耦合系统响应的影响,并通过对海缆位形、张力和曲率的对比评估给出了海缆登陆最大允许作业海况。研究结果表明,考虑粘性阻尼后船体的垂荡幅值减小55%,海缆敷设时的有效张力、曲率及海缆登陆时的偏移量均明显减小。以考虑船舶粘性阻尼的分析结果作为工程指导,可有效减少海缆登陆海域作业面积并增加作业窗口期,提高海缆敷设效率。High voltage submarine cable laying is the key link of offshore wind farm development. In order to improve the simulation accuracy of submarine cable laying and landing, the paper uses the hydrodynamic analysis method to apply viscous damping in SESAM/HydroD to obtain the Response Amplitude Operator(RAO) of cable laying vessel. The coupling model of cable-laying vessel-submarine cable-mooring system is established in Orcaflex to analyze the effect of viscous damping on the response of the coupling system. Through the comparative evaluation of the position, tension and curvature of the submarine cable, the maximum allowable operating sea state of the submarine cable landing is given. The results show that the heave amplitude of the hull decreases by about 55% after considering viscous damping. The effective tension and curvature during laying and the offset during landing of the submarine cable are significantly reduced. Taking the analysis results of vessel viscous damping into account as engineering guidance can effectively reduce the expropriation area of submarine cable landing in the sea area, and increase the operation window period with improvement of the efficiency of submarine cable laying.

关 键 词：海缆敷设 海缆登陆 粘性阻尼 水动力分析 耦合模型 

分 类 号：U674[交通运输工程—船舶及航道工程]