基于材料非线性的海洋柔性立管防弯器有限元分析  

Finite element analysis on bending stiffener of flexible marine riser based on material non-linearity

作　　者：孙凯[1] 岳前进[1] 阎军[1] 汤明刚[1] 

机构地区：[1]大连理工大学 工业装备结构分析国家重点实验室,辽宁大连116023

出　　处：《计算机辅助工程》2014年第6期66-69,共4页Computer Aided Engineering

基　　金：国家高技术研究发展计划("八六三"计划)(2012AA090314);国家自然科学基金创新群体项目(50921001);国家重点基础研究发展计划("九七三"计划)(2011CB013705);中央高校基本科研业务费专项资金(DUT13ZD208)

摘　　要：建立海洋柔性立管防弯器三维有限元模型,研究聚氨酯材料非线性对防弯器弯曲性能的影响.通过算例对比不同材料属性的计算结果,发现不考虑材料非线性的计算结果与理论分析结果吻合较好.试验结果表明考虑防弯器材料非线性的立管最大曲率比不考虑材料非线性的小10%.因此,在防弯器详细分析时很有必要考虑材料非线性.A 3D finite element model is built for a bending stiffener of flexible marine riser, which is used to study the effect of polyurethane material non-linearity on the bending performance of bending stiffener. The calculation results are compared for different material properties. It is found that the calculation results without considering material non-linearity are well consistent with the theoretical analysis results. The test results show that the maximum curvature of riser considering bending stiffener material non-linearity is 10% lower than that without considering material non-linearity. The conclusion is that it is very necessary to consider material non-linearity during the detailed analysis on bending stiffener.

关 键 词：海洋柔性立管 防弯器 聚氨酯 材料非线性 最大曲率 有限元 

分 类 号：TE95[石油与天然气工程—石油机械设备]