Modeling and analysis of static and dynamic behavior of marine towed cable-array system based on the vessel motion

IF 1.9 4区 工程技术 Q3 ENGINEERING, MECHANICAL
M. Gharib, Ali Heydari, Mohammad Reza Salehi Kolahi
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Abstract

Towing cables are playing a key role in maneuverability of moving or submerged vessels and the supporting vehicles in the ocean. This investigation evaluates the tension strength of the various parts of the marine towing cable and its geometric form under various operating conditions. Thus, the governing equations of the problem are introduced and analyzed first, followed by an examination of the method of solving the problem. We evaluate the cable’s static and dynamic behavior under different operating conditions using a continuous cable method. Then, we introduce and analyze the governing equations of the problem. The static mode comprises three operating conditions: a two-dimensional mode for constant vessel length, a two-dimensional mode for constant hydrophone depth, and a three-dimensional mode for different vessel motion and seawater directions. Dynamic mode operating conditions include vessel acceleration, vessel rotation, and cable tightening. The results show that, if the velocity of the seawater flow is zero, changing the angle of the vessel motion has little effect on the tension force of the cable-array and the length of the cable in the steady-state. It is also found that assuming a constant depth of the cable-array, the maximum tension force of the cable will increase to almost 35 times. However, if the length of the cable-array remains constant, the maximum tension force of the cable increases by around 13 times as the vessel’s speed increases by 5 times.
基于船舶运动的海洋拖曳电缆阵列系统静态和动态行为建模与分析
牵引缆索在海洋中移动或沉没的船只和辅助车辆的操纵性方面发挥着关键作用。本研究评估了海洋拖曳缆各部分的拉伸强度及其在各种工作条件下的几何形状。因此,首先要介绍和分析问题的支配方程,然后研究解决问题的方法。我们采用连续缆法评估了缆索在不同工作条件下的静态和动态行为。然后,我们介绍并分析问题的控制方程。静态模式包括三种工作条件:船舶长度不变的二维模式、水听器深度不变的二维模式以及船舶运动和海水方向不同的三维模式。动态模式的工作条件包括船只加速、船只旋转和缆绳收紧。结果表明,如果海水流速为零,改变船只运动角度对缆线阵列的拉力和稳态下的缆线长度影响不大。研究还发现,假设缆索阵列的深度不变,缆索的最大拉力将增加到近 35 倍。然而,如果缆索阵列的长度保持不变,当船速增加 5 倍时,缆索的最大拉力将增加约 13 倍。
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来源期刊
Advances in Mechanical Engineering
Advances in Mechanical Engineering 工程技术-机械工程
CiteScore
3.60
自引率
4.80%
发文量
353
审稿时长
6-12 weeks
期刊介绍: Advances in Mechanical Engineering (AIME) is a JCR Ranked, peer-reviewed, open access journal which publishes a wide range of original research and review articles. The journal Editorial Board welcomes manuscripts in both fundamental and applied research areas, and encourages submissions which contribute novel and innovative insights to the field of mechanical engineering
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