SRM 2460/2461 Standard Bullets and Casings Project

The National Institute of Standards and Technology Standard Reference Material (SRM) 2460/2461 standard bullets and casings project will provide support to firearms examiners and to the National Integrated Ballistics Information Network (NIBIN) in the United States. The SRM bullet is designed as both a virtual and a physical bullet profile signature standard. The virtual standard is a set of six digitized bullet profile signatures originally traced from six master bullets fired at the Bureau of Alcohol, Tobacco and Firearms (ATF) and the Federal Bureau of Investigation (FBI). By using the virtual signature standard to control the tool path on a numerically controlled diamond turning machine, 40 SRM bullets were produced. A profile signature measurement system was established for the SRM bullets. The profile signature differences are quantified by the maximum of the cross correlation function and by the signature difference between pairs of compared profile signatures measured on different SRM bullets. Initial measurement results showed high reproducibility for both the measurement system and production process of the SRM bullets. A traceability scheme has been proposed to establish the measurement traceability for nationwide bullet signature measurements to NIST, ATF and FBI. Prototype SRM casings have also been developed.     

枪弹底火击穿爆炸成因探析

通过对某型枪弹底火变形与击发过程分析,给出击发时底火壳受力模型,分析了影响底火击穿的因素,得出火台窝处击发药爆炸是导致底火击穿主要原因结论,提出减小击发药量以减小爆炸能量、提高底火壳材料强度以提高感度减小塑性变形,改变击针头部形状以减小火台窝等措施,从而防止底火击穿。     

射孔弹弹体材料成分对组织性能的影响规律

油田射孔弹广泛应用于石油开采领域,射孔弹的爆炸力越强,穿透井下岩层的距离就越远,越有利于扩大油田采油半径,提高产油率,降低成本。文中通过探讨射孔弹弹体材料成分对性能的影响规律,最终获得射孔弹弹体的最佳成分配比,为提高其各项性能奠定理论基础。     

一种弹头涂色标的工艺方法

为解决弹头涂色标现行工艺方法存在的问题,根据弹头涂色标的整体工艺流程,设计一种弹头涂色标和色标烘干的工艺方法和结构布局,并通过实验验证,得出色标烘干的最佳温度和时间趋势图.应用结果表明:该工艺和结构布局能够实现弹头的自动排序、外观检测、自动涂色标并以热风浴形式快速烘干的功能,色标受热均匀,质量稳定可靠,固化时间短,安全程度较高.     

石油射孔弹金属射流穿孔机理及金属粉末选用研究

从理论上论述了石油射孔弹金属射流穿孔机理，并在实际中对构成金属药型罩的金属粉末的选用作了进一步研究，从而证明了穿孔机理的正确性，对石油射孔弹生产及科研有一定借鉴作用。     

Optimization of high hardness perforated steel armor plates using finite element and response surface methods

In this article, finite element simulations and response surface method are used to optimize perforated plate parameters for ballistic protection. After statistically validating the relationship between residual velocity and geometric parameters, a response optimizer was used to find the best combination of design parameters to stop a threat with less areal density. Finally, the optimized solution was checked both numerically and experimentally to show the effectiveness of the developed methodology. The weight is decreased by 28% when compared with monolithic steel armor having the same antiballistic performance.     

枪弹弹丸被甲剥离机的设计应用

研制了一种枪弹弹丸被甲剥离机,较好地解决了大口径枪弹弹丸难以销毁和销毁不彻底的难题,能够满足报废弹药末端处理彻底的作业需要,具有较高的社会效益和军事效益,以及很好的推广应用前景。     

一种单镜筒双光束激光通信方法及应用

提出了一种单镜筒双光束激光通信方法及其在实兵对抗伤情模拟中的应用方案,设计了一种单镜筒双光束结构,激光器发出的光束被分成发散角不一样的内外两部分,内环光斑能量密度高于外环,再将接收探头连接到两个不同门限的电压比较器用来区分内外环光束的照射,同时设计合适的探头阵列,这样就可以根据比较器输出的高低电平组合以及探头的位置来判...     

基于伺服控制的三维塑封系统

目的为了提高枪弹的防护性和可靠性,设计一种基于伺服过程控制的枪弹塑封包装系统。方法将伺服过程控制、自动枪弹包装系统与塑封包装工艺相结合,形成一种新型枪弹包装系统。结果基于伺服过程控制的枪弹塑封包装系统定位精度高,塑封尺寸和厚度控制在0.01 mm。经过900万发枪弹实运行包装验证,建成了一条新型枪弹包装系统。结论基于伺服过程控制的枪弹塑封包装系统达到了枪弹包装工艺要求,并且可靠、稳定,减少了操作人员,实现了人机隔离。     

实弹射击报靶系统的图像校正

针对人工校正报靶系统的不准确性,提出了一种无线超声报靶系统的图像校正技术。采用轮廓提取的方法获取靶纸上的有效区域,对有效区域采取自动获取控制点的方法进行几何校正,获得与模板图像大小相同的正视靶纸图片,再利用训练好的级联分类器识别校正后的靶纸上的弹孔,最后利用最小二乘法计算出靶纸上弹着点的实际位置。向超声靶射击3枪,记录超声信号获得的3个弹着点位置,将其与弹着点的实际位置进行比对即可获取报靶系统的修正值,再将修正值用于弹着点的校正当中,即可实现靶纸更换后弹着点位置的自动校正。较之传统的人工校正方法更加方便快捷,减少人为因素造成的校正不准,避免实弹训练时报靶误差的产生。