海洋工程装备与技术

海洋工程装备与技术 ›› 2016, Vol. 3 ›› Issue (5): 287-291.

• 专栏：深海浮式平台关键技术研究 • 上一篇    下一篇

浮筒段刚度对浅水柔性立管力学行为的影响分析

邹科, 陈金龙, 袁振钦   

  1. 大连理工大学工业装备结构分析国家重点实验室;
  • 收稿日期:2016-09-30 出版日期:2016-10-25 发布日期:2017-08-15
  • 作者简介:邹科(1989—)，男，硕士，工程师，主要从事海洋工程方面的研究。
  • 基金资助:
     

 Effect of Buoyancy Modules’ Bending Stiffness Behavior on Flexible Riser in Shallow Water

 ZOU Ke, CHEN Jin-long, YUAN Zhen-qin   

  1.  State Key Laboratory of Structural Analysis of Industrial Equipment, Dalian University of Technology, Dalian, Liaoning 116024, China
  • Received:2016-09-30 Online:2016-10-25 Published:2017-08-15
  • Supported by:
     

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摘要： 随着柔性管道的发展,附件装备的刚度对柔性立管线型的影响逐渐成为研究的热点。基于8英寸(1英寸≈2.54cm)立管,考虑浮筒与柔性管道耦合作用下的非线性刚度,建立浅水陡波形立管分析模型,利用OrcaFlex软件对柔性立管的张力和曲率进行时域分析,并与不考虑浮筒耦合的模型结果进行对比。结果表明浮筒的弯曲刚度对立管线型最大张力结果的影响很小,但对最大曲率的影响比较显著。考虑浮筒弯曲刚度的立管线型分析得到的结果更为准确。

Abstract:  With the development of flexible pipe, the effect of bending stiffness of accessories and equipment on flexible riser has become current research focus. Based on 8 inch (1 inch ≈ 2.54 cm) flexible pipe, considering the nonlinear stiffness coupling buoyancy module with flexible pipe, we establish steep wave riser model in shallow water. Simulation is carried out using time domain analysis method in OrcaFlex software for flexible risers tension and curvature. The results are compared with another model ignoring the coupling bending stiffness. It is shown that the effect of bending stiffness is little on maximum tension result; however, the effect of bending stiffenss is more significant on the maximum curvature. More accurate results of riser configuration analysis can be obtained by considering the bending stiffness of buoyancy module riser.

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