针对爆炸成型弹丸速度测量的需求,提出了一种基于多层折返式激光平行光幕测试弹丸速度新方法,设计了一种爆炸成型弹丸(EFP)速度测试系统,并对其工作原理和结构进行了详细介绍。利用AUTODYN有限元分析软件对EFP成型过程进行了仿真,并对爆炸成型破片进行计时,经运算将时间和速度通过液晶屏显示,得到了在靶距一定情况下的实验数据。经和原激光光幕靶比较,多层折返激光光幕靶具有光幕均匀、扩展容易的特点。优化了EFP速度测试的功能。

In view of the single structure of existing laser screen and sky-screen target, a new velocity measurement system based on multilayer reflective laser parallel light curtain was put forward. In order to measure fragmentation velocity in the powerful warhead explosion experiment, a non-contact explosively formed projectile (EFP) velocity test system was designed. The EFP forming process was simulated by using AUTODYN finite element analysis software. The time of EFP through the Light Curtain was recorded, and the time and velocity were displayed through the LCD screen after computing. At last, experimental data within the certain range circumstances was obtained. With Comparison with fan-shaped laser screen, the multilayer reflective laser parallel light curtain system has characteristics: uniform laser, easily extendible and cost saving. EFP velocity test function was optimized approvingly.