风、波、流耦合效应下岸基恒张力系泊系统的缆索张力特性研究

Li Wang, Nan Liu, Shoujun Wang, Songgui Chen
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引用次数: 0

摘要

本文提出了一种岸基恒张力系泊系统,通过调整缆绳长度来改善缆绳张力分布,保持船舶与系泊桩之间缆绳张力恒定,以解决传统系泊系统在系泊过程中安全性和可靠性差的问题。首先,本文基于三维势流理论,利用流体力学软件 AQWA 对传统系泊系统在不同海况下风、波、流耦合作用下的动态响应进行了数值模拟。随后,研究了采用体积变化水力控制原理的岸基恒张力系泊系统。在全面分析恒张力液压控制系泊系统工作原理的基础上,建立了主要工作回路的数学模型。依靠 MATLAB/simulink仿真软件对系统进行了数值仿真。最后,通过与传统系泊系统的比较,结果表明岸基恒张力系泊系统的最大缆绳张力明显降低,使张力控制在固定范围内,系泊缆绳的安全系数明显提高,从而降低了系泊系统故障的风险,提高了船舶的生存能力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Study on cable tension characteristics of shore-based constant tension mooring systems under the coupling effect of wind, wave, and current
This paper proposes a shore-based constant tension mooring system, which improves the cable tension distribution by adjusting the length of the cable to maintain the constant tension of the cable between the ship and the mooring pile, in order to solve the problem of poor safety and reliability of the traditional mooring system in the mooring process. Firstly, based on the three-dimensional potential flow theory, this paper uses the hydrodynamic software AQWA to numerically simulate the dynamic response of the traditional mooring system under the coupling of wind, wave, and current in different sea states. Subsequently, a shore-based constant tension mooring system using the principle of volume-varying hydraulic control was studied. On the basis of a comprehensive analysis of the working principle of the constant tension hydraulic control mooring system, a mathematical model of the main working circuit is established. The system was numerically simulated by relying on MATLAB/simulink simulation software. Finally, by comparing with traditional mooring systems, the results show that the maximum cable tension of the shore-based constant-tension mooring system is significantly reduced, so that the tension is controlled within a fixed range, and the safety factor of the mooring cable is significantly improved, thus reducing the risk of mooring system failure and improving the ship's survivability.
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