考虑腐蚀影响的老旧FPSO船体总纵强度研究  

Research on longitudinal strength of old FPSO considering the influence of corrosion

作　　者：李刚 易丛 王朝阳 范模 李达 LI Gang;YI Cong;WANG Zhao-yang;FAN Mo;LI Da(CNOOC Research Institute, Beijing 100028, China)

机构地区：[1]中海油研究总院,北京100028

出　　处：《舰船科学技术》2018年第3期83-88,共6页Ship Science and Technology

摘　　要：以在渤海服役20年的FPSO为研究对象,分别采用水动力分析软件MOSES和SESAM计算其静水载荷和波浪载荷,进而得到船体所受总纵外载荷。依据《海上浮式装置入级规范》中关于腐蚀速率的规定计算FPSO在计入腐蚀后的船体剖面模数,根据《钢质海船入级与建造规范》中的相关规定,对FPSO在运营不同年限后的总纵强度进行校核,同时提出了改造加强的建议。校核结果表明:该船目前的总纵强度满足规范要求。In this paper, an FPSO that has operated nearly 20 years in Bohai bay was studied. The hydrostatic load and frequency wave load of the FPSO were respectively calculated by MOSES and SESAM, and then the longitudinal load of the hull would be obtained. The section modulus considering corrosion of the hull was calculated based on the regulation on corrosion rate in the ＂Rules for the Classification and Construction of Offshore Floating Units＂. Then the longitudinal strength of the FPSO after continuing to operate different years was checked based on the ＂Rules and Regulations for the Construction and Classification of Sea Going Steel Ships＂, and the suggestion for enhancing the structural strength was also be proposed. The code check results show that the longitudinal strength of this FPSO can man meet standard requirements.

关 键 词：老旧FPSO 总纵载荷 腐蚀 剖面模数 总纵强度 

分 类 号：U661[交通运输工程—船舶及航道工程]