散货船“最后分舱装载”的一种计算方法

A Calculation Method of "Final Trimming" for Bulk Carriers

散货船在装卸货物时,由于码头前沿水深的限制,常需控制船舶装载后的平均吃水及艏艉吃水差。为此,散货船装货到最后阶段,需预留部分货物,通过合理分配这部分货物的装舱位置,使船舶吃水及吃水差达到预定的值。分析比较目前船舶上通常使用的分配这部分货物的计算方法,提出利用各货舱的"加载100t艏艉吃水变化表"快速计算"最后分舱装载"的方法。实践证明,该计算方法比较简单,且能使散货船的最后分舱装载达到精准控制平均吃水和艏尾吃水差的目的,值得散货船装载时参考使用。

While loading bulk carriers in ports,usually the ship＇s average draft and the difference between fore draft and aft draft should be controlled due to the limitation of the water depth in front of wharf.Generally,a certain amount of cargo is preserved for adjusting ship draft at final loading stage through distributing it in appropriate holds.The currently used calculation methods for distributing the last amount cargo are analyzed and a faster calculation method is suggested.Practice has proved that the new method is simpler and gives better control of the average draft and fore/aft draft difference.