港池内中长周期波浪作用下船舶系缆动力响应

针对港池内船舶装卸作业的安全与稳定问题,采用基于势流理论的面元法分析程序AQWA,分析得到船舶与码头结构耦合作用下的14 000 TEU集装箱船动力响应幅值算子。在此基础上,进一步采用码头泊位前的真实波浪条件,得到14 000 TEU集装箱船在设计系缆方式下的船舶运动量响应和缆绳受力响应。结果表明,14 000 TEU集装箱船横摇周期较大,与港池内存在的中长期波(12～18 s)不相匹配,不易引起船舶较大幅度的动力响应;计算分析结果与系泊物理模型试验所得到的结果相吻合,说明所采用的计算原理与分析模型较为可靠,具有较强的工程实际应用价值。

Dynamic response of mooring ship under medium and long period wave in harbor basin

Aiming at the safety and stability of ship loading and unloading operation in harbor basin,we analyze and obtain the dynamic response amplitude operator of 14 000 TEU container ship under coupled action of ship and wharf structure by the panel method analysis program AQWA based on potential flow theory.On this basis,we apply the actual wave condition of the front of the wharf berth,and obtain the responses of 14 000 TEU container ship motion quantity and cable tension force under the designed mooring scheme.The results show that the rolling period of 14 000 TEU container ship is larger,so it is different from medium and long period wave(12~18 s) existed in the harbor,which is difficult to cause a large dynamic response of the ship.The results of calculation and analysis in this paper are in good agreement with the model test results,and have strong engineering reference significance.