12200 TEU集装箱船破舱稳性研究

Research on Damage Stability of 12200 TEU Container Ship

以某12200 TEU集装箱船为例,以《国际海上人命安全公约》为基础,采用概率法对该类型船的破舱稳性进行研究。简述概率性破舱稳性计算衡准要求,在此基础上探讨采用NAPA软件计算和分析船舶破舱稳性的过程,重点探讨选取稳心高度值的方法,以及破舱稳性计算结果分析和优化方法。研究结果表明在满足衡准要求的前提下,合理选取稳心高度值有助于增加甲板的装箱量,合理调整艉部开口的位置和加密破损分区的划分能明显改善破舱稳性计算结果。

The damage stability of a 12200 TEU container ship built by Jinhai Shipyard is studied with software NAPA against the SOLAS(International Convention for Safety of Life at Sea)requirement for probabilistic damage stability.The stability criteria are analyzed and the process of calculation and analysis with NAPA is discussed.The determination of GM(Metacentric Height)value is focused on,and the analysis and optimization of the calculation result is emphasized.The research shows that the GM can be optimized for larger deck load capacity under the condition of the stability requirements.It is also found that the opening location at the aft part and the subdivision design have great impact on the stability.