柔性、刚性球艏对双壳舷侧结构耐撞性能影响的研究  

Crashworthiness of Double Hull Structures Impacted by Buffer and Rigid Bows

作　　者：刘敬喜[1] 胡紫剑[1] 叶文兵[1] 

机构地区：[1]华中科技大学船舶与海洋工程学院,湖北武汉430074

出　　处：《中国舰船研究》2008年第5期32-36,共5页Chinese Journal of Ship Research

摘　　要：采用非线性显示动力有限元软件LS_DYNA,对舷侧双壳结构在柔性和刚性球艏撞击下的动力响应进行仿真研究。采用全船有限元模型,考虑船体周围附连水质量对结构动力响应的影响。给出了碰撞力—撞深、能量—撞深曲线以及各构件吸收的能量。仿真结果表明:不同球艏撞击下舷侧内外壳板的破裂时刻、撞深和舷侧结构变形性能都有所不同。The dynamic response of double hull structures collided by buffer and rigid bows was carried out by LS_DYNA. A full ship was modeled in the finite element analysis. The influence of added mass on the dynamic response of hull structure was considered. The curves of collision force vs. penetration, energy vs. penetration, and absorbed energy in components of ship structures were presented. The results show that the energy absorption of ship side collided by buffer bow is larger than that by rigid bow.

关 键 词：船舶碰撞 球艏 双壳 耐撞性 结构损伤 有限元法 

分 类 号：U661.42[交通运输工程—船舶及航道工程]