海洋脐带缆铠装钢丝的结构设计

Structural Design of Marine Umbilical Armored Wire

摘要: 铠装钢丝是脐带缆的重要强度构件，起到承担复杂海洋环境中的拉伸、扭转等荷载和保护中心内核的作用。为保证脐带缆扭转平衡和应力平衡，工程中通常将铠装钢丝设计成双层或多层且异向缠绕在中心内核外。本文论述了一种海洋脐带缆铠装钢丝的理论设计方法，建立了双层铠装脐带缆理论模型。结果表明，铠装钢丝的螺旋角度和直径对海洋脐带缆的机械强度有一定的影响。

Abstract: Armored steel wire is an important strength component of the umbilical, which can bear the load of stretching and torsion in complex marine environment and can protect the central core. In order to ensure the torsion balance and stress balance of umbilical, the armored steel wire is usually designed as two or more layers and wound outside the central core in opposite directions. In this paper, a theoretical design method of armored steel wire of umbilical is discussed, and a theoretical model of double armored umbilical is established. The results show that the spiral angle and diameter of the armored wire have a certain effect on the mechanical strength of the umbilical.