非黏结柔性立管疲劳损伤特性分析  

Analysis of the fatigue characteristics of unbonded flexible riser

作　　者：任铁[1,2] 宋磊建[2] 沈志平 周佳[2] 

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200240 [2]中国船舶与海洋工程设计研究院,上海200011

出　　处：《海洋工程》2017年第6期101-108,共8页The Ocean Engineering

基　　金：工业和信息化部高技术船舶科研项目"深海半潜式生产平台总体设计关键技术研究"

摘　　要：对柔性立管的疲劳损伤特性进行分析,探究抗拉层与抗压层的疲劳特性,并分析弯曲加强器的存在与否对柔性立管疲劳损伤的影响。研究表明:柔性立管最内层抗拉层上的疲劳损伤最大,从内到外,抗拉层的疲劳损伤依次减小;抗压层受到的疲劳损伤远小于抗拉层的疲劳损伤;弯曲加强器的存在可以减小立管的疲劳损伤,并改变抗拉层疲劳危险点的位置。In this study,the fatigue characteristics of a flexible riser were analyzed; the fatigue characteristics of tensile armor layer and pressure armor layer were studied and the effects of the bending stiffener on the fatigue damage of flexible riser were also investigated. The results show that the fatigue damage of the innermost tensile armor layer is the largest,and the fatigue damage reduces from inside layer to outside layer. Besides,the fatigue damage of the pressure armor layer is far less than that of the tensile armor layer.The existence of bending stiffener can decrease the riser fatigue damage and change the position of the fatigue＇s dangerous point.

关 键 词：柔性立管 疲劳损伤 抗拉层 抗压层 弯曲加强器 

分 类 号：P751[交通运输工程—港口、海岸及近海工程]