风浪流联合作用下软钢臂系统的受力研究

摘要

海洋的环境载荷复杂和多变，而海洋的环境工况又决定着系泊系统的受力情况，因此海上系泊系统的安全越来越重要。本文针对渤海海域某水上软钢臂单点系泊系统的方案设计，基于大型水动力软件 AQWA，得到目标船舶频域计算下的水动力参数和系泊系统的时域耦合动力分析结果。重点分析在不同的风浪流夹角对系泊系统受力的影响，以此预报最危险工况，为后续有关系泊结构、塔架以及连接处万向节的强度和疲劳校核提供依据。分析结论亦可为同类系泊系统提供参考。%The ocean's environmental load is a complex and changeable, and the load imposed of mooring system de-pends on the ocean's environmental conditions. As a result, the security of mooring system is becoming important. Aiming at the design of the soft yoke single mooring system in Bohai Sea area, and based on the software AQWA, this thesis calculates the hydrodynamic parameter of ship based on the frequency, then concludes the analysis of the time-domain coupling dy-namics of the mooring system. The thesis focus on the influences of the angles between wind, wave and current on the stress of mooring system to forecast the most dangerous load case, so that it can provides foundation for the subsequent strength and fatigue verification. Also, the thesis can provide reference for similar mooring systems.