拖曳状态下FPSO的船体梁极限强度可靠性分析  

The Reliability Analysis of Ultimate Strength of FPSO Hull Girder under Towing Condition

作　　者：张道坤[1] 唐文勇[1] 张圣坤[1] 

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200030

出　　处：《上海交通大学学报》2007年第2期168-171,共4页Journal of Shanghai Jiaotong University

基　　金：国家自然科学专项基金资助项目(50323004)

摘　　要：针对一艘无自主动力的浮式生产储油船(FPSO)拖曳航行时的静水、波浪载荷特点,开展船体梁极限强度可靠性评估.其中波浪弯矩根据不同的拖曳航行速度,利用简化的插值表与渐进式极值分布相结合的方法获得.计算结果表明,拖曳航行状态下的FPSO船体梁可靠性评估不可忽略,其数据可为今后类似拖曳行为提供可靠性方面的数据支持,对于正确认识拖曳航行状态下FP-SO的可靠性水平具有现实意义.The ultimate strength reliability analysis of hull girder was carried out according to the still water bending moment and wave-induced bending moment of an FPSO （Floating Production, Storage and Of floading unit） which has no automatic propulsion, under towing condition. The wave-induced bending moment is derived by simplified interpolation and asymptotic type I distribution under different towing speed. The result proves that the reliability analysis process of FPSO hull girder under towing condition is not neglectable and the achieved data can support database for similar reliability analysis. It is helpful to recognize the proper reliability level of FPSO under towing condition.

关 键 词：拖曳 浮式生产储油船 可靠性 波浪弯矩 

分 类 号：P751[交通运输工程—港口、海岸及近海工程] TU311[天文地球—海洋科学]