双壳船内壳和外壳结构耐撞性能的分析和比较

Comparison of Crashworthiness of Inside Shell with That of Outside One for Double-Hull Structures

依据船舶加筋板结构缩尺模型的耐撞性试验数据,结合理论计算方法,详细讨论双壳船舷侧内壳和外壳结构的碰撞损伤特性,对其进行分析和比较。研究表明:双壳船舷侧内壳和外壳结构在耐碰撞能力方面的差异虽不是很大,但在渐进破坏过程及破坏模式方面却存在明显的区别。这些结论对于提升双壳船舷侧结构的耐撞性能具有一定的指导意义。

In this study, damage characteristics of inside and outside shells under lateral loading are investigated with both experimental and theoretical methods. Collision experiments of stiffened plate are carried on and the crashworthiness of inside shell are compared with that of outside shell. It is found that though only few differences in crashworthiness exist, there are significant differences in progressive collapse behaviors and failure modes between the inside shell and outside one. The results may provide guidance and reference to the crashworthiness design of double-hull side structures.