带隔板复合装药结构对双层罩毁伤元成型的影响  

Effects of Composite Shaped Charge with Wave Shaper on Formation of Double-layer Liner Penetrator

作　　者：赵志杰 李伟兵[1] 李军宝 李文彬[1] 王晓鸣[1] ZHAO Zhi-jie;LI Wei-bing;LI Jun-bao;LI Wen-bin;WANG Xiao-ming(Key Defense Laboratory of Intelligent Munitions,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学智能弹药技术国防重点学科实验室,江苏南京210094

出　　处：《火炸药学报》2024年第4期344-353,共10页Chinese Journal of Explosives & Propellants

基　　金：国家自然基金面上项目(No.11972018)。

摘　　要：针对带隔板复合装药爆轰波控制问题,利用LS-DYNA软件仿真研究了不同隔板参数及复合装药结构参数对爆轰波传播及作用过程的影响;结合X光成像试验验证并通过仿真研究了双层药型罩在不同装药结构参数下的成型规律。结果表明,随着隔板厚度及复合装药高度的增加,复合装药爆轰波由球面波向V形波转化,使得双层药型罩从包覆式侵彻体向杆式侵彻体转换;其中侵彻体的头部速度和长径比与隔板厚度、装药高度、炸药性能呈正相关,与隔板半径、隔板底部距起爆中心位置、内外层炸药直径比呈负相关,当隔板厚度为0.114~0.142倍装药口径、隔板半径为0.400~0.429倍装药口径、隔板底部距起爆中心位置为0.100~0.129倍装药口径、复合装药高度为0.971~1.257倍装药口径、内外层炸药直径比为0.77~0.83时,杆式侵彻体成型较好。Aiming at controlling the detonation wave of composite charge with wave shaper,the influence of different wave shaper and composite charge structure parameters on detonation wave propagation and forming process was analyzed by LS-DYNA software.The forming law of double-layer liner with different shaped charge structure parameters was verified by X-ray imaging test and studied by simulation.The results show that as the thickness of wave shaper and the height of the shaped charge increase,the detonation wave of the composite charge changes from spherical wave to V-shaped wave,and the double-layer liner changes from the PELE to rod-EFP.The head velocity and length to diameter ratio of the penetrators are positively correlated with the thickness of the wave shaper,the height of the charge and the performance of the explosive,and negatively correlated with the radius of the wave shaper,the distance between bottom of the wave shaper and the center of detonation,and the diameter ratio of the inner and outer layer of the explosive.When wave shaper thickness is 0.114—0.142 times shaped charge diameter,wave shaper radius is 0.400—0.429 times shaped charge diameter,the distance between the bottom of wave shaper and the initiation center is 0.100—0.129 times shaped charge diameter,the composite charge height is 0.971—1.257 times shaped charge diameter,and the diameter ratio of inner and outer charge is 0.77—0.83,ideal rod penetrator can be formed.

关 键 词：爆炸力学 带隔板复合装药 爆轰波 双层药型罩 数值模拟 LS-DYNA软件 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O38[理学—流体力学]