【摘要】 提出了一种新型矩形蜂窝夹芯夹层加筋圆柱壳结构形式。分析了其在水下爆炸冲击载荷下的动力响应特征及冲击防护作用机理。采用LS-DYNA计算该结构在水下爆炸冲击载荷下的动力响应;并以耐压壳体的最大变形和塑性应变为评价指标,计算讨论了典型设计参数变化对冲击防护效果的影响最后针对一个典型方案,分析了其在不同冲击环境下的冲击防护效果。更多还原

【Abstract】 A new kind of rectangular honeycomb sandwich stiffened cylindrical shell was proposed.The responses and shock-protection mechanism of this new structure were analyzed.Here,the commercial code LS-DYNA was employed to analyze the dynamic responses of this new sandwich structure subjected to underwater explosion shock load.The largest deformation and plastic strain of thepressured hull were selected as the indicators to evaluate the effects of typical parameters on the anti-shock performance of the structure.At last,the anti-shock performance of a typical honeycomb sandwich stiffened cylindrical shell in different shock environment was also investigated.更多还原