摘要
脐带缆用于连接水上浮体和水下生产系统,缆芯由钢管单元、光纤单元和电缆单元等组装而成,缆体外层是由铠装钢丝层螺旋缠绕以及聚合物外护套组装而成,截面结构复杂。利用ANSYS有限元通用软件建立双层铠装脐带缆的三维多层接触摩擦有限元模型,计算其截面拉伸刚度,将拉伸刚度数值模拟值与理论结果进行对比,验证有限元模型的正确性;分析比较铠装层不同缠绕角度、缠绕方式和钢丝直径下脐带缆模型的拉伸刚度。结果表明:铠装钢丝层缠绕方式、缠绕角度、铠装钢丝直径对双层铠装脐带缆模型的拉伸刚度、最大等效应力模拟结果均有影响。
Umbilical cable is used for connecting overwater floating body and underwater production equipment.The cable core is usually assembled by pipe unit,fiber unit,and cable unit and the outer layer of the cable is composed of spiral winded armored steel wire and polymer sheath.The cross-section of the umbilical cable is complex.By using ANSYS finite element software,a finite element model of three dimensional multi-layer contact friction is established for the double-layer armored umbilical cable,with which the tensile stiffness of the cross section is calculated.The correctness of the model is then verified by comparing the simulated values of the tensile stiffness with the theoretical ones.The armor layer of the umbilical cable model is analyzed and compared under the cases of different helix angles,different winding modes and different wire diameters.The results show that the helix angle,winding mode and wire diameter of the armor layer can influence on both the tensile stiffness and the maximum equivalent stress of the umbilical cable model.
作者
刘文青
郭海燕
陈洪程
LIU Wen-qing;GUO Hai-yan;CHEN Hong-cheng(Department of Engineering,Ocean University of China,Qingdao 266100,China)
出处
《海岸工程》
2020年第2期86-93,共8页
Coastal Engineering
基金
山东省重点研发计划项目——海洋脐带缆涡激振动及抑振关键技术研究(2018GHY115045)。
关键词
脐带缆
铠装层
拉伸刚度
等效应力
ANSYS软件
umbilical cable
armor layer
tensile stiffness
equivalent stress
ANSYS software
