船行波对双船系靠LNG泊位系泊稳定性的影响

双船系靠LNG泊位对系泊稳定性要求高,而目前尚无船行波对双船系靠泊稳定性影响的定量分析方法。结合工程实例,以Flory-Remery单船系泊船行波荷载计算方法为基础,结合双船系靠泊位的特点予以修正,利用数值分析软件定量分析船行波过程对双船系靠泊位系泊稳定性的动态影响。结果表明,典型系泊条件下,双船系靠泊位系泊倒缆受力及纵移运动量受船行波影响最大,当船行波与系泊船间距50 m时系泊稳定性不满足要求;当船行波与系泊船间距100 m时系泊稳定性满足要求;当船行波与系泊船间距150 m时系泊稳定性基本不受船行波影响。

Influence of ship wave on mooring stability of ship to ship moored LNG berth

The ship to ship LNG berth has high requirements for mooring stability.At present,there is no quantitative analysis method for mooring stability analysis of ship to ship moored berth when affected by ship wave.Combining with the engineering case,we apply Flory-Remery method of calculating single ship wave load produced by passing ship,modify the Flory-Remery method according to the characteristic of ship to ship berth,and analyze dynamic effect on moored ships’mooring stability when affected by passing ship quantitative.The results show that under the condition of typical moor,spring line’s load and ships’surge of ship to ship moored berth are most affected by ship wave.The mooring stability cannot satisfy the requirement when the distance between moored ships and passing ship is 50 m,and it can satisfy the requirement when the distance is 100 m.When the distance between moored ships and passing ship is 150 m,the mooring stability of ship to ship berth is largely unaffected by ship wave.