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。
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 wa- ter. 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 signif- icant on the maximum curvature. More accurate results of riser configuration analysis can be obtained by considering the bending stiffness of buoyancy module riser.
作者
邹科
陈金龙
袁振钦
ZOU Ke CHEN Jin-long YUAN Zhen-qin(State Key Laboratory of Structural Analysis of Industrial Equipment, Dalian University of Technology, Dalian , Liaoning 116024, China)
出处
《海洋工程装备与技术》
2016年第5期287-291,共5页
Ocean Engineering Equipment and Technology
关键词
柔性立管
浮筒
非线性
弯曲刚度
陡波线型
flexible riser
buoyancy module
nonlinearity
bending stiffness
steep wave configuration
