驳船的影响概率破舱稳性单因素研究

Study on Influence Factors of Ship Probability Damage Stability

概率破舱稳性是干货船破舱稳性计算与校核的一项强制性要求,它不同于传统的破舱稳性计算,计算中涉及到大量的破损舱室的组合,目前仍然是在分舱之后才能进行分析计算,若不满足则需要返回重新分舱。在初步设计阶段,如何有效分舱以使船舶分舱设计能满足概率破舱稳性,以减少分舱的盲目性与重复性,从而找到基于概率破舱稳性的分舱指导原则,这将具有重要的理论意义和工程应用价值。以某实际工程驳船为研究对象,设计了大量的分舱方案,并分别对其进行概率破舱稳性计算。根据计算结果对影响分舱指数A的因素进行了定性分析,提出了改进分舱指数A的设计准则。

Since determinate damage stability calculation method has lots of deficiency, probability damage stability has been brought about and become a compulsory calculation for dry cargo ships. In order to perform probability damage stability calculation, a large number of damaged compartment combina- tions have to be calculated that is time-consumable. If the obtained index A is less than demanded in- dex R, subdivision has to be done once again until A is larger than or equal to R. How to compartmentalize reasonably is a crucial problem. This paper takes a barge for example ship and designs lots different compartment arrangements. Probability damage stability calculations for different arrange- ments are carried out respectively. Based on the calculation results, some qualitative principles to guide subdivision are presented, which can provide a practical tool for engineering application and im- prove arrangement design quality.