降低总纵弯矩的散货船分舱优化设计技术研究

A research on technology of reducing longitudinal bending moment of a bulk carrier by subdivision optimization

梳理了降低总纵弯矩的散货船分舱优化流程。以中船重工船舶设计研究中心有限公司开发设计、山海关船舶重工有限责任公司建造的93 000 DWT散货船作为母型船,进行目标船货舱区分舱方案设计,通过参数化建模,快速建立22种分舱方案。针对每种分舱方案,合理的确定空船重量分布,根据规范要求和船东需求,确定典型装载工况。输出每个载况完整状态和单个货舱破损状态的弯矩剪力信息,统计和比较每种分舱方案的弯矩剪力极值,综合考虑其他性能指标,选定最优方案。通过中垂弯矩的有效控制,避免了弯矩剪力增加引起相关构件尺寸的增大,造成空船重量不必要的额外增加,为适当削减部分构件的尺寸提供条件,为降低空船重量奠定基础。

This thesis tidied the process of reducing the longitudinal bending moment of a bulk carrier by optimization of subdivision. Refering to the 93 000 DWT bulk carrier that developed and designed by China Ship Design Research Center Co.,Ltd and constructed by Shan Hai Guan New Shipbuilding Industry Co.,Ltd. as the model ship,put out the subdivision plan of the target ship＇ s cargo hold area. Through the parameterized modeling method,rapidly established 22 kinds of subdivision plans. For every subdivision plan,determined the deadweight distribution reasonably. According to the specification requirement and the owner＇s needs,determined the typical loading conditions. Put out the bending moment and shear force of each loading condition＇ s intact condition and single cargo hold damaged condition. Summed up and compared the maximum and minimum value of bending moment and shear force of each subdivision plan.Considering other performance index to choose the optimal subdivision plan. By controlling the sagging moment effectively,avoided increasing of related component size as result of bending moment or shear force increasing and avoid unnecessary deadweight increasement. Lay foundation to cutting down part of the component size for deadweight reducement.