VESF材料与结构参数对JPC成型影响的数值模拟

2014,22(2):230-234
高淑萍1, 王志军1, 董方栋1, 张新2, 毕春艳3
(1. 中北大学机电工程学院, 山西 太原 030051; 2. 96518部队, 湖南 怀化 418000; 3. 太原重型机械集团有限责任公司, 山西 太原 030051)
摘要：采用非线性动力学分析软件AUTODYN-2D数值仿真分析了VESF对聚能杆式射流(JPC)成型的影响，获得了不同VESF材料、形状(K字形，矩形，三角形)及其与主装药间距下侵彻体成型的仿真结果。结果表明，随着VESF材料密度的增加及其与主装药间距的增大，主装药起爆点由中心逐渐向外过渡; 不同横断面形状的VESF也可形成不同的起爆方式，K字形与矩形时为点起爆，三角形时为面起爆。在本研究条件下，VESF材料为钢，横断面为K字型与主装药距离为6 mm的，JPC成型效果最佳。
关键词：爆炸力学; VESF; 爆轰波形; 杆式射流; 数值模拟

Effect of VESF with Different Material and Structure Parameters on Formation of JPC Charge by Numerical Simulation

GAO Shu-ping1, WANG Zhi-jun1, DONG Fang-dong1, ZHANG Xin2, BI Chun-yan3
(1. Collage of Mechanic Engineering, North University of China, Taiyuan 030051, China; 2. 96518 army, huaihua 418000, China; 3. Heavy machinery company of Taiyuan, Taiyuan 030051, China)
Abstract： To analyze the impact of VESF on Jetting Projectile Charge(JPC) formation, nonlinear dynamics analysis software AUTODYN-2d was used for numerical simulation. The simulation results of penetrator formation were obtained with different VESF materials, shapes(K shape, rectangular, triangular) and the distance between VESF and main charge. Results show that the main charge initiation point transfers from center to outside gradually with the increase of VESF material density and the distance between VESF and main charge. Different initiation modes are formed with different transverse shapes of VESF, and it is a point initiation for K shape and rectangle, and the plane initiation for triangle. The optimum conditions to JPC formation are: steel plate, K shape and 6 mm (distance from VESF to charge).
Key words：mechanics of explosion; VESF; initiation modes; rod-like jet; numerical simulation
收稿日期：2013-03-26
基金项目：
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