飞片材料对电爆驱动飞片速度的影响  

Influence of Flyer Materials on Flyer Velocity Driven by Electric Explosion

作　　者：王翔[1] 谭凯元[1] 文尚刚[1] 刘清杰[1] 叶辉[1] 

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621900

出　　处：《含能材料》2014年第2期259-262,共4页Chinese Journal of Energetic Materials

摘　　要：采用任意反射面激光位移干涉测试技术(Displacement Interferometer System for Any Reflector,DISAR)分别获得了聚酯薄膜飞片、铝/聚酯薄膜飞片及铜/聚酯薄膜飞片在金属箔电爆驱动下的速度历程。结果表明,在充电电压为25.4 kV时,聚酯薄膜飞片在加速腔中的有效加速时间为1.6μs,最高速度约4.4 km·s-1;铝/聚酯薄膜飞片和铜/聚酯薄膜飞片在加速腔中的有效加速时间均大于3.0μs,最高速度均小于4.0 km·s-1。电爆驱动时,飞片材料对其运动特性有较大影响。金属/聚酯薄膜飞片相对于聚酯薄膜飞片更利于保持飞片的运行姿态,但飞行同样距离时其速度要低。T he velocity histories of the M ylar flyer,Al/M ylar double-layer and C u /M ylar double-layer driven by electric explosion of metallic foil w ere recorded by displacement interferometer system for any reflector（ DISAR）. R esults show that at the charging voltage of 25. 4kV,the effective driven time and maximum flyer velocity in acceleration cavity is 1. 6 μs and 4. 4 km·s^-1for the M ylar flyer,and longer than 3. 0 μs and low er than 4. 0 km ·s^-1for the Al/ M ylar double-layer and C u / M ylar double-layer,respectively. T he materials of flyers play significant roles in their movement w hen it is driven by electric explosion. In comparison w ith the M ylar flyer,the metal/ M ylar doublelayer flyer is more conducive to keep running posture of flyer,but its speed is low er w hen flying the same distance.

关 键 词：应用物理 任意反射面激光位移干涉测试技术(DISAR) 飞片速度历程 金属箔电爆 

分 类 号：TQ562[化学工程—炸药化工]