舰载武器系统安全射界设计方法初探

安全射界是保证舰艇安全和作战需要的重要参数,它直接影响武器使用的安全、效能的发挥和使命任务的完成．该文首先研究了安全射界的计算原理,接着运用系统工程方法讨论了安全射界与舰载武器系统效能的关系,最后根据使命任务研究了武器在射界设计时的优先等级．     

Experimental investigation on enhanced damage to fuel tanks by reactive projectiles impact

Enhanced damage to the full-filled fuel tank,impacted by the cold pressed and sintered PTFE/AL/W reactive material projectile(RMP)with a density of 7.8 g/cm3,is investigated experimentally and theoretically.The fuel tank is a rectangular structure,welded by six pieces of 2024 aluminum plate with a thickness of 6 mm,and filled with RP-3 aviation kerosene.Experimental results show that the kerosene is ignited by the RMP impact at a velocity above 1062 m/s,and a novel interior ignition phenomenon which is closely related to the rupture effect of the fuel tank is observed.However,the traditional steel projectile with the same mass and dimension requires a velocity up to 1649 m/s to ignite the kerosene.Based on the experimental results,the radial pressure field is considered to be the main reason for the shear failure of weld.For mechanism considerations,the chemical energy released by the RMP enhances the hydrodynamic ram(HRAM)effect and provides additional ignition sources inside the fuel tank,thereby enhancing both rupture and ignition effects.Moreover,to further understand the enhanced ignition effect of RMP,the reactive debris temperature inside the kerosene is analyzed theoretically.The initiated reactive debris with high temperature provides effective interior ignition sources to ignite the kerosene,resulting in the enhanced ignition of the kerosene.     

多比特信息分布式检测优化研究

本文拓展了通常意义下多传感器组网分布式检测模型,允许各传感器向融合中心传输多比特信息。给出了Ｋｕｌｌｂａｃｋ分辨率意义下,确定最优多比特信息的方法,以利于改善系统检测性能。数值结果表明,多比特信息分布式检测方案是可行的。     

GM计数管能量响应的数值模拟研究

采用蒙特卡罗（MC）方法,对一款GM计数管对γ的能量响应进行了模拟计算,计算结果与实验结果比较,能量响应曲线的变化趋势比较一致,说明该模拟计算方法应用在计数管的设计和应用中是可行的．     

用FPGA 实现先行进位单元阵列除法器

介绍了用ＦＰＧＡ实现先行进位单元阵列除法器的原理及方法。本除法器在速度上不仅较软件方法快近十倍,而且较传统的硬件除法器有很大的提高;同时,利用ＦＰＧＡ设计技术,将本除法器集成在一单片的ＦＰＧＡ器件上,从而为高速处理模块的实现提供了一条十分有效的途径     

科技创新中的企业标准化工作

一、科技创新中标准化工作的重要意义 创新是一个民族的灵魂,是一个国家兴旺发达的不竭动力。整个人类历史,就是一个不断创新、不断进步的过程。没有创新,就没有人类的进步,就没有人类的未来。当代科学技术的发展,更加雄辩地证明了这一点。对企业来说,大力推进科技创新、实现技术发展的跨越极为重要。