夹层聚能装药形成杆式射流数值模拟
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摘要
为研究夹层聚能装药结构对杆式射流的影响,利用非线性动力学软件Autodyn对不同爆速炸药匹配下爆轰波的传播及杆式射流的成型进行了数值模拟,得到了杆式射流的特性参数和侵彻装甲钢的模拟结果。研究表明:爆速外高内低的夹层聚能装药能显著调节爆轰波形,有效提高杆式射流的特性参数;基于文中夹层聚能装药结构的杆式射流对装甲钢的侵彻深度提高了28%,且开孔形态更为均匀。
In order to research the impact of double layer shaped charge on JPC(Jetting Projectile Charge), the propagation process of detonation and the formation of JPC were studied with the finite element code Autodyn. The characteristic parameters of JPC and its penetration performance were researched by numerical simulation. The result shows that the double layer shaped charge with the outer layer at higher detonation velocity can adjust the detonation shape obviously and enhance the characteristic parameters effectively. With the structure of double layer shaped charge in this paper, the penetration depth on RHA has been increased by 28% and the shape of penetrating hole is smoother.
In order to research the impact of double layer shaped charge on JPC(Jetting Projectile Charge), the propagation process of detonation and the formation of JPC were studied with the finite element code Autodyn. The characteristic parameters of JPC and its penetration performance were researched by numerical simulation. The result shows that the double layer shaped charge with the outer layer at higher detonation velocity can adjust the detonation shape obviously and enhance the characteristic parameters effectively. With the structure of double layer shaped charge in this paper, the penetration depth on RHA has been increased by 28% and the shape of penetrating hole is smoother.
引文
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[9]黄正祥.聚能杆式侵彻体成型机理研究[D].南京:南京理工大学,2003.
[10]黄正祥,张先锋,陈惠武.飞片起爆条件下聚能杆式侵彻体成型数值模拟[J].系统仿真学报,2005,17(8):1830-1832.
[11]李伟兵,王晓鸣,李文彬,等.环形多点起爆精度对聚能杆式侵彻体成型的影响[J].爆炸与冲击,2010,30(1):45-50.
[12]李伟兵,樊菲,王晓鸣,等.杆式射流与射流转换的双模战斗部优化设计[J].兵工学报,2013,34(12):1500-1505.
[13]樊菲.实现杆流与射流转换的研究[D].南京:南京理工大学,2012.
[2]LIU Z Y,TANAKA K,ITOH S.A method for producing extra-high dyncamic pressure due to the efficient use of high explosive[J].Journal of Pressure Vessel Technology,2004,126(2):264-268.
[3]STUIVINGA M,VERBEEK H J,CARTON E P.The double explosive layer cylindrical compaction method[J].Journal of Materials Processing Technology,1999,85(1/2/3):115-120.
[4]HAMADA T,ITOH S,KATO H.An investigation on overdriven detonation phenomenon in concentric double cylindrical high explosive[J].Materials Science Forum,2004,465/466:379-384.
[5]李福金.夹层聚能装药的破甲试验研究与分析[C]//丁世用.破甲技术文集.北京:兵器工业出版社,1992:97-98.
[6]张先锋,丁建宝,赵晓宁.夹层聚能装药作用过程的数值模拟[J].爆炸与冲击,2009,29(6):617-624.
[7]FUNSTON R J,MATTSSON K V,OUYE N N.K-charge-a multipurpose shaped charge warhead:US 6393991[P].2002-05-28.
[8]MATTSSON K,CHVRCH J.Development of the K-charge,a short L/D shaped charge[C]//IBS.Proceedings of the18th lnternational Symposium on Ballistics.Orlando:IBS,1999:528-534.
[9]黄正祥.聚能杆式侵彻体成型机理研究[D].南京:南京理工大学,2003.
[10]黄正祥,张先锋,陈惠武.飞片起爆条件下聚能杆式侵彻体成型数值模拟[J].系统仿真学报,2005,17(8):1830-1832.
[11]李伟兵,王晓鸣,李文彬,等.环形多点起爆精度对聚能杆式侵彻体成型的影响[J].爆炸与冲击,2010,30(1):45-50.
[12]李伟兵,樊菲,王晓鸣,等.杆式射流与射流转换的双模战斗部优化设计[J].兵工学报,2013,34(12):1500-1505.
[13]樊菲.实现杆流与射流转换的研究[D].南京:南京理工大学,2012.