A Consistent Analytical Model to Predict the Structural Behavior of Flexible Risers Subjected to Combined Loads
A Consistent Analytical Model to Predict the Structural Behavior of Flexible Risers Subjected to Combined Loads
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DOI：
10.1115/1.1710869
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发表时间：
2004-05
影响因子：
1.6
通讯作者：
Roberto Ramos;C. Pesce
中科院分区：
文献类型：
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作者：
Roberto Ramos;C. Pesce
本文提出了一个分析模型，用于分析挠性隔水管在弯曲、扭转和拉伸载荷以及施加在隔水管上的内、外压力的联合作用下的结构。所提出的配方，其中包括平衡条件，本构方程和几何关系，导致的问题的解决方案中的层和变形组件的柔性立管受到上述组合载荷所支持的负载。所有的建模假设都在工作中突出显示。展示并讨论了使用全滑动模型的分析结果与文献中获得的实验结果之间的比较。在结论中提出了改进模型的建议。
This work presents an analytical model for the structural analysis of flexible risers subjected to combined loads of bending, twisting and tension, as well as internal and external pressures applied to the riser. The proposed formulation, which comprises equilibrium conditions, constitutive equations and geometrical relations, leads to the solution of the problem in terms of the loads supported by the layers and deformation components of a flexible riser subjected to the above mentioned combined loads. All the modeling hypotheses are highlighted in the work. Comparisons between analytical results using the full-slip model and experimental results obtained in literature are shown and discussed. Some proposals leading to improvement of the presented model are drawn in the conclusions.