舰船舷侧在水下接触爆炸作用下的数值仿真

Numerical Simulation of Naval Panels Subjected to Underwater Contact Explosion Loading

利用LS-DYNA对舰船舷侧防护体系在接触爆炸作用下的破坏进行数值仿真模拟。通过改变舷侧防护体系中空舱和液舱的大小,探讨如何提高舷侧整体防护能力。分别分析了各种情况下板的破口半径和压力时间曲线等数值模拟结果,得出加大空舱尺寸对爆轰波衰减更加明显的结论,从而为提高舰船舷侧整体防护能力提供了依据。

Numerical simulation of naval panel＇s destroying subjected to underwater contact explosion loading was done by LS-DYNA. How to improve the overall defensive capabilities of naval panels was discussed by changing sides of vacant or liquid cabin of naval panels of side protection system. The result that can be gained by analysis curve of crevasse radius and time pressure is that increasing the size of vacant cabin can be more efficient to attenuate detonation wave. The method to strengthen the defensive capabilities of naval panels can be provided consequently.