单点锁紧装置后基座模块化更换虚拟建造分析  

Modular Replacement Virtual Construction Analysis of Single Point Mooring Locking Device Rear Bracket

作　　者：李鹏[1] 刁华东 王文榜 胡刚明 李雪可 刘永 金向东[1] LI Peng;DIAO Hua-dong;WANG Wen-bang;HU Gang-ming;LI Xue-ke;LIU Yong;JIN Xiang-dong(CNOOC Energy Technology and Services Oil Production Services Company,Tianjin 300452,China;CNOOC Limited Shenzhen Co.Ltd.,Xijiang Oil Field,Shenzhen Guangdong 518000,China;Shenzhen Company of CNOOC Energy Technology and Services Oil Production,Shenzhen Guangdong 518000,China;Yiulian Dockyards(Shekou)Limited,Shenzhen Guangdong 518067,China;School of Naval Architecture and Ocean Engineering,Harbin Institute of Technology(Weihai),Weihai Shandong 264209,China)

机构地区：[1]中海油能源发展股份有限公司采油服务分公司,天津300452 [2]中海石油深圳分公司西江油田作业区,广东深圳518000 [3]中海油能源发展股份有限公司采油服务深圳分公司,广东深圳518000 [4]友联船厂(蛇口)有限公司,广东深圳518067 [5]哈尔滨工业大学(威海)海洋工程学院,山东威海264209

出　　处：《船海工程》2024年第5期82-87,共6页Ship & Ocean Engineering

基　　金：中海油能源发展计划([2023]139号)。

摘　　要：针对FPSO单点系泊系统锁紧装置插板和局部结构因反复焊修导致的焊接裂纹问题,提出一种模块化更换方案,以提高焊接质量、结构可靠性和现场施工效率。采用模块化更换方法,通过热弹塑性数值模拟评估单点锁紧装置后基座更换过程中的焊接变形,优化焊接顺序和坡口设计,以控制焊接过程中的变形和残余应力。同时,考虑模块边界设计和不同模块类型的特殊需求,以适应FPSO单点舱复杂结构的多样性。模拟结果显示,优化后的模块化更换方案实现了焊接变形的最小化,有效控制了焊接变形,保证了后基座模块化更换的装配精度,确保了与安装平面误差在可控范围内。模块化更换方案是一种有效的解决FPSO单点锁紧装置插板和局部结构焊接裂纹问题的方法,为后续相关在线维修或坞修提供参考。A modular replacement scheme was proposed to improve welding quality,structural reliability,and on-site construction efficiency in response to welding cracks caused by repeated welding repairs on the locking mechanism and local structure of FPSO single point mooring system.A modular replacement method was adopted to evaluate the welding deformation during the base replacement process of a single point locking mechanism through thermal elastoplastic numerical simulation.The welding sequence and groove design were optimized to control the deformation and residual stress during the welding process.At the same time,module boundary design and special requirements for different module types were considered to adapt to the diversity of complex structures in FPSO mooring mating structures.The simulation results showed that modular replacement effectively controls welding deformation and ensures the assembly accuracy of modular replacement of the rear bracket.The optimized solution minimizes welding deformation and ensures that the installation plane error is within a controllable range.The modular replacement solution is an effective way to solve the problem of welding cracks in the rear bracket and local structure of FPSO single point locking mechanism,providing reference for subsequent online or dry-dock repairs.

关 键 词：单点锁紧装置 模块化更换 焊接 虚拟建造 

分 类 号：U674.38[交通运输工程—船舶及航道工程]