隔板对聚能射流性能影响的数值模拟研究  

Numerical Simulation Study of the Effect of Wave-shaper on Shaped Charge Jet's Performance

作　　者：董敏鹏 吴国东[1] 李庆鑫 李素云[1] 纪录 DONG Minpeng;WU Guodong;LI Qingxin;LI Suyun;JI Lu(School of Mechatronics Engineering,North University of China,Taiyuan 030051,China;Harbin Jiancheng Group Co.Ltd,Harbin 150030,China)

机构地区：[1]中北大学机电工程学院,太原030051 [2]哈尔滨建成集团有限公司,哈尔滨150030

出　　处：《弹箭与制导学报》2018年第2期127-130,共4页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：国家自然科学基金(11572291);山西省研究生联合培养基地人才培养项目(20160033)资助

摘　　要：为了得到一种可形成高速侵彻体的聚能装药结构,对传统聚能装药结构中的隔板位置进行了调整,利用AUTODYN-2D软件对射流的成型过程进行了有限元数值模拟。研究表明:在距离药型罩较近的合适位置设置隔板,隔板会起到辅助药型罩的作用,可形成一种类截顶式药型罩。缩小隔板底部与药型罩顶部之间的间距会明显提高射流头部速度,辅助体的形成对射流速度的提高起到了决定性作用。调整后的不同长径比带隔板聚能装药结构,射流拉伸均匀,头部速度均可达10 km/s,杵体部分较小可视为微杵体。To obtain a kind of shaped charge structure which can form high speed penetrator, adjusted the wave-shaper＇ s position of tradi- tional shaped charge structure, simulated forming process of jet by using AUTODYN-2D software. Research shows that setting wave-shaper at a fight place close to liner, wave-shaper acts as an auxiliary liner and shaped charge structure can form a similar type of liner which is truncated. Reducing space between bottom of wave-shaper and top of liner can obviously increase head speed of jet and auxiliary body plays a decisive role in improvement of jet velocity. After adjustment, shaped charge structure with wave-shaper of different aspect ratio, jet forming state is well, head speed can up to 10 km/s. The part of pestle is relatively smaller, which can be regarded as a micro pestle.

关 键 词：高速侵彻体 隔板位置 聚能装药 数值模拟 

分 类 号：TJ413[兵器科学与技术—火炮、自动武器与弹药工程]