The Analysis of Mechanical Properties and Lightweight Design of Nonmetallic Armored Umbilical Cable
The Analysis of Mechanical Properties and Lightweight Design of Nonmetallic Armored Umbilical Cable
复制标题
非金属铠装脐带缆力学性能分析及轻量化设计
DOI：
10.1115/1.4053163
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发表时间：
2021-12
期刊：
影响因子：
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通讯作者：
Xinlong Zheng
中科院分区：
文献类型：
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作者：
Yu Deng;Xu Liang;Zeng Cao;Lingpeng Kong;Chizhong Wang;Yongdu Ruan;Xinlong Zheng
抽象的。由于油气勘探向深海发展，铠装钢丝提供的有效抗拉能力将随着脐带缆重量的增加而迅速下降。在充分考虑脐带缆几何特性的基础上，研究了两种轻质脐带缆的设计方案，并对其在拉伸、弯曲和扭转三种工况下的力学性能进行了研究。模型中还考虑了脐带缆组件之间的接触和摩擦。三种情况下，从理论和有限元方法进行验证。从摩擦系数和螺旋缠绕角的角度对变量进行了讨论。与钢管脐带缆模型相比，非金属铠装脐带缆具有更高的抗拉强度和更好的柔韧性。随着摩擦系数的增大，脐带缆模型的刚度变化不大。螺旋缠绕角对拉伸刚度和弯曲刚度影响较大，而对扭转刚度影响较小。所提出的轻量化模型可适用于6000 m水深。该研究有助于脐带缆的设计，以实现深水应用中高抗拉能力的目标。
Abstract. Due to the development of gas and oil exploration into the deep sea, the effective tensile capacity provided by armored steel wire will decrease rapidly with the increase of the weight of umbilical cables. In this paper, two designs of lightweight umbilical cables were studied in full consideration of the geometric characteristics, and the mechanical properties were investigated under tension, bending, and torsion. The contact and friction between the components of the umbilical cables were also included in the model. Three cases are presented for validation from theoretical and finite element methods. The discussion on variables was carried out from the views of friction coefficient and helically wound angle. Compared with the steel tube umbilical model, the nonmetallic armored umbilical cable shows higher tensile strength and more flexibility. With the increase of friction coefficient, the stiffness of umbilical cable models don't change much. The helically wound angle has a great influence on the tensile stiffness and bending stiffness but little effect on the torsional rigidity. The proposed lightweight model can be applicable to 6000m water depth. This research can benefit the design of umbilical cables to achieve the goal of high tensile capacity in deepwater applications.