中国舰船研究2024，Vol.19Issue(3)：193-204,12.DOI:10.19693/j.issn.1673-3185.03468
大型舰船圆筒型水下防护结构性能分析
Analysis of protective performance of large ship's cylindrical underwater protection structure
摘要
Abstract
[Objective]In response to the problems of high weight and relatively low protective efficiency associated with traditional multicamerate structures(i.e.,void compartment-liquid tank-void compartment),this study explores the protective performance of underwater cylindrical protective structures.[Methods]A numerical model based on an arbitrary Lagrangian-Eulerian(ALE)algorithm is established and verified through a contact explosion case involving a typical structure.On this basis,models of the traditional multi camerate protective structure and cylindrical protective structure are then established.Through numerical sim-ulation,parameters such as maximal stress,strain and energy absorption after underwater contact explosion with the same explosive charge are analyzed,and their respective protective performances obtained.[Results]The displacement of the defended longitudinal wall of the cylindrical protective structure is smal-ler than that of the watertight longitudinal wall,which is contrary to the behavior of traditional multicamerate protective structures.Additionally,the energy absorbed by the deck and double bottom is 9.92%less than that of the traditional protective structure,demonstrating a significant advantage in resisting deformation in the ver-tical direction.[Conclusion]The results of this study indicate that the cylindrical protective structure exhib-its a lower level of damage under the same charge,providing new insights for the innovative design of under-water protection structures.关键词
圆筒型防护结构/接触爆炸/任意拉格朗日-欧拉算法/毁伤破坏/吸能规律Key words
cylindrical protective structure/contact explosion/arbitrary Lagrangian-Eulerian(ALE)algori-thm/damage/energy absorption分类
交通工程引用本文复制引用
张博文,聂晨曦,姬祥,明付仁,张阿漫..大型舰船圆筒型水下防护结构性能分析[J].中国舰船研究,2024,19(3):193-204,12.基金项目
国家自然科学基金资助项目(52071109) （52071109）
黑龙江省优秀青年科学基金资助项目(YQ2020E027) （YQ2020E027）
