摘要
由于良好的疲劳特性,自由站立式立管(FSHR)正广泛应用于深海油气田的开发当中。首先根据设计参数建立FSHR详细的有限元模型,然后利用谱分析方法对FSHR进行总体运动疲劳分析,以确定FSHR总体设计参数是否满足运动疲劳要求。最后对工作于相同环境下的钢悬链立管(SCR)进行总体运动疲劳分析,探讨哪种立管系统的疲劳性能更为优良。计算结果表明FSHR系统中刚性主管最大运动疲劳损伤出现在刚性主管顶部,FSHR总体设计参数满足规范要求;FSHR总体运动疲劳寿命要远大于SCR,体现了FSHR系统对浮体运动与刚性主管之间具有良好的解耦作用。
As a new-style production riser,Free Standing Hybrid Riser（FSHR） is being used for deepwater oil and gas exploitation widely.First of all,a detailed finite element model is created according to FSHR design parameters.Then the FSHR global motion fatigue analysis is carried out using spectrum analysis method to determine whether the design parameters of FSHR meet fatigue requirement.At last,the global motion fatigue analysis of a Steel Catenary Riser（SCR） is performed for the same environment to compare the fatigue performances of the two risers.The calculated results indicate that FSHR global design parameters satisfy fatigue requirement and the max motion fatigue damage appears at the top of the rigid riser of FSHR.The analysis results indicate that FSHR has a longer motion fatigue life and better decoupling function of riser from floater motions.
出处
《海洋工程》
CSCD
北大核心
2011年第4期43-50,共8页
The Ocean Engineering
基金
国家科技重大专项资助项目(2008ZX5030-005-13)
关键词
自由站立式立管
谱分析方法
疲劳分析
钢悬链立管
free standing hybrid riser
spectrum analysis method
fatigue analysis
steel catenary riser
