【摘要】 为探究不同能量结构炸药对舰船的毁伤规律,开展不同能量结构炸药水下爆炸对舰船多舱结构的毁伤特性研究。通过任意拉格朗日-欧拉方法模拟TNT、PBXC19、H6和PBXN111共4种炸药水下爆炸能量输出结构,获取不同炸药的冲击波能和气泡能占比;分析不同能量结构炸药对多舱结构的破坏机理,获取不同能量结构炸药对多舱结构的毁伤特征。研究结果表明:同等装药情况下,炸药的冲击波能越大则冲击波阶段毁伤越严重,气泡能越大则气泡阶段毁伤越严重,2.28倍TNT冲击波能的炸药PBXC19在冲击波阶段舷侧外板破口直径比TNT增加30.2%;气泡在自由液面破碎的条件下,1.44倍TNT气泡能炸药H6在气泡阶段舷侧外板破口直径比TNT增加9.9%;增大炸药冲击能和气泡能会显著增加冲击波和气泡载荷对舰船多舱结构的毁伤效果。更多还原

【Abstract】 In order to explore the rules of damage of explosives with different energy structures to ships,the damage characteristics of underwater explosion of explosives with different energy structures to ship multi-cabin structures are studied. The energy output structure of underwater explosions of four types of explosives, namely TNT, PBXC19, H6, and PBXN111, is simulated using arbitrary Lagrange-Euler(ALE) algorithm, and the proportions of shock wave energy and bubble energy for different explosives are obtained. Subsequently, the damage mechanisms of explosives with different energy structures on multi-cabin structures are analyzed, and the damage characteristics of explosives with different energy structures on multi cabin structures are obtained. The research results show that, under the same charge,the larger the shock wave energy of the explosive is,the more severe the damage in the shock wave stage is,and the larger the bubble energy is,the more severe the damage in the bubble stage is. PBXC19 explosive of which shock wave energy is 2. 28 times more than that of TNT increases the rupture diameter of the side shell by 30. 2% during the shock wave stage compared to TNT When bubbles break on the free surface,the explosive H6 of which bubble energy is 1. 44 times more than that of TNT increases the rupture diameter of the side shell by 9. 9% during the bubble stage compared to TNT. Increasing the shock wave energy and bubble energy of explosives significantly increase the damage effect of shock waves and bubble loads on ship multi cabin structures.更多还原