中型邮轮A级分隔简化策略及其应用

Simplification Strategy of A-Class Division and Its Application in Medium-Sized Cruise Ships

邮轮概率法破损稳性评估方法中要求计入A级防火分隔带来的进水中间阶段的影响。然而实际工程实践中发现,中型邮轮布置中存在大量A级分隔(如A级舱壁、甲板等),如果以遍历的方式考察计算这些A级边界,则会导致生成的破损工况数量过多,超出常规计算机的计算能力,无法顺利得到计算结果。以某中型邮轮实船为例,给出A级分隔的简化处理策略,并通过对比计算验证该组策略的合理性,旨在为邮轮设计者提供一种高效的设计参考方法。

The influence of intermediate stage of flooding induced by A-Class fire division should be considered in the probabilistic damage stability calculation.However,it is found in the actual engineering practice that there are always a lot of A-Class divisions(A-Class bulkheads,decks,etc.)in the arrangement of a medium-sized cruise ship.If the calculation of these A-Class boundaries is conducted in a traversal way,too much damage cases are generated,which is beyond the computing capacity of conventional computers,and the calculation results cannot be obtained smoothly.Taking a medium-sized cruise ship as an example,the simplification strategies of A-Class boundaries is presented and the rationality of the group of strategies is verified through comparative calculation,aiming to provide an efficient design reference method for cruise designers.