隔板宽度对线型聚能射流成形特性影响数值模拟  

Numerical Simulation on Effects of Wave-shaper Width on Formation of Linear Shaped Charge Jet

作　　者：周游[1] 龙源[1] 刘健峰[1] 徐景林[1] 曹涛[1] 宋佳星[1] 

机构地区：[1]解放军理工大学野战工程学院,南京210007

出　　处：《爆破》2016年第4期112-117,共6页Blasting

基　　金：解放军理工大学预先研究基金项目(批准号:201417);解放军理工大学野战工程学院青年基金项目(批准号:2015-7)

摘　　要：为研究隔板宽度对线型聚能射流成形的影响,利用惠更斯原理,对隔板宽度对爆轰波形及射流速度的影响进行理论分析,采用ANSYS/LS-DYNA有限元软件,对六种隔板宽度下线型聚能射流成形过程进行数值模拟。结果表明：当隔板宽度相对值（隔板宽度与药型罩宽度比D/d）在0.6-0.8时,线型聚能装药成形聚能射流特征参数受隔板宽度变化影响较大,根据目标的特性,优化选择合适的装药结构可以显著提高聚能射流的终点毁伤效应;相对于无隔板条件下成形的线型聚能射流,当隔板宽度相对值达到0.9时,线型聚能射流速度为4640 m/s,提高了22.3%。In order to investigate the effects of wave-shaper width on the formation of linear shaped charge （LSC） jet, the effects of wave-shaper width on waveform and jet velocity were analyzed based on Huygens principle. The ANSYS/LS-DYNA program was performed to simulate LSC jet shapes under six kinds of wave-shaper widths. By analyzing the results, it suggests that when D/d（ width of wave-shaper/liner） varies between 0.6 and 0.8, the LSC jet performance is greatly influenced by wave-shaper width. The end damage effect of LSC jet can be remarkably improved by choosing proper charge parameters. When D/d = 0.9, the top velocity of LSC jet, reaching 4640 m/s, increases by 22.3% than that produced by LSC without wave-shaper.

关 键 词：隔板 线型聚能装药 数值模拟 爆轰波形 射流成形 

分 类 号：TJ410.3[兵器科学与技术—火炮、自动武器与弹药工程]