圆筒型 FPSO 外飘挡浪墙结构分析方法  

Structural Analysis Method for Inclined Bulwark of Cylindrical FPSO

作　　者：张文博 邓石 胡海峰[1] 乔晓国 ZHANG Wenbo;DENG Shi;HU Haifeng;QIAO Xiaoguo(Offshore Oil Engineering Co.,Ltd.,Tianjin 300451,China)

机构地区：[1]海洋石油工程股份有限公司,天津300451

出　　处：《中国海洋平台》2025年第1期95-102,共8页China offshore Platform

摘　　要：圆筒型浮式生产储卸油装置(Floating Production Storage and Offloading,FPSO)通常在主甲板与工艺甲板间采用挡浪墙结构,但在高海况下容易遭受强浪砰击。为了设计兼顾强度要求与重量控制的挡浪墙,以流花11-1油田二次开发项目采用的圆筒型FPSO为例,运用理论计算与有限元分析相互结合的方法,将局部计算模型体量设定为优化目标,把采用各异边界条件当作优化途径,提出一种可兼顾设计效率与计算精准性的外飘挡浪墙结构分析方法。明确以6 m×6 m的最小区域作为挡浪墙局部校核时砰击载荷的加载范围,并外延至相邻1档强肋位区间,以此作为模型的选定范围。该方案在现有工程实践中得到成功应用,亦可为类似结构设计工作提供有益借鉴。The cylindrical Floating Production Storage and Offloading(FPSO)typically adopts a bulwark between the main deck and the process deck,but it is prone to suffering serious slamming loads under high sea conditions.In order to design a bulwark that balances strength requirements and weight control,taken the cylindrical FPSO used in Liuhua 11-1 Oilfield Continued Development Project as an example,the method that combines theoretical calculation with finite element analysis is applied,the volume of the local calculation model is set as the optimization goal and the adoption of different boundary conditions is regarded as the optimization approach to propose a structure analysis method for the inclined bulwark that can balance the design efficiency and calculation accuracy.It is determined that the minimal area of 6 m×6 m is taken as the loading range of the slamming loads when conducting local verification of the bulwark,and it is extended to the interval of the adjacent strong girder position,which is used as the selection scope of the model.This scheme is successfully applied in the existing engineering practice and can also provide useful references for similar structural design work.

关 键 词：圆筒型FPSO 挡浪墙 砰击载荷 模型范围 结构有限元分析 

分 类 号：TE95[石油与天然气工程—石油机械设备] P75[天文地球—海洋科学]