爆炸破片对防护液舱的穿透效应  

Effects of explosion fragments penetrating defensive liquid-filled cabins

作　　者：孔祥韶[1] 吴卫国[1] 李俊[1] 李晓彬[1] 徐双喜[1] 

机构地区：[1]武汉理工大学交通学院,湖北武汉430063

出　　处：《爆炸与冲击》2013年第5期471-478,共8页Explosion and Shock Waves

基　　金：国防基础研究项目(A1420080184);中央高校基本科研业务费专项项目(2011YB08)

摘　　要：分别对单发破片和双发破片同时穿透液舱的过程进行了数值计算,提出了破片穿透液舱的5个典型过程,分析了破片速度的衰减规律、液舱内板的响应及舱内液体中冲击波压力的叠加效应。结果表明:破片穿透液舱的过程中产生的冲击波和局部压力将作用在液舱内板上,双发破片打击时液体内部产生的冲击波有明显的叠加效应,高压区域的位置与破片间距有关,冲击波压力峰值和液舱内板受到的压力大于2倍的单发破片打击情况。Numerical simulations were conducted to investigate the penetration process of single and double fragments produced by a typical missile warhead into the liquid-filled cabin. The penetration process was defined as five typical stages. The velocity attenuation of the fragments, the response of the inner plate and the synergistic effect of the shock waves induced by double fragments in the liquid- filled cabin were analyzed. The results indicate that the shock wave and local pressure are the main loads endured by the inner plate of the liquid-filled cabin. There is an apparent synergistic effect of the shock waves in the liquid-filled cabin penetrated by double fragments, and the position of the l^igh shock-wave pressure region is related to the space between fragments. The shock-wave pressure peak resulted from the impact Of the double fragments and the pressure endured by the inner plate are two times higher than those in the case of the single fragment.

关 键 词：爆炸力学 叠加效应 破片 防护液舱 穿甲 

分 类 号：O385[理学—流体力学]