美国国防部指令5000.01重大变革分析及启示

美国国防采办系统是世界上最为庞大、复杂、严谨、运转稳定的采办系统,为维持美国的强大军事优势做出了突出贡献.近年来,为了确保军事技术优势的可持续发展,美国的国防采办系统在国防战略牵引下,也一直处于不断调整完善之中,并且有不断加速的趋势.2020年,美国国防部总结各项采办改革实践中的经验和教训,对国防部指令5000.01《...     

GJB 1391在弹药故障模式与影响分析中的应用

武器系统的工作特性决定了对其可靠性的要求甚高。本文在介绍“开展故障模式及影响分析的意义以及可以达到的目的”的基础上,从故障模式及影响分析的方法、依据、程序、确定严酷度类别等方面,对GJB1391在弹药故障模式与影响分析中的应用,结合实例进行了剖析。     

模糊关系系统的串联补偿解耦方法

本文在分析耦合特性的基础上,绐出了串联补偿解耦方法的设计步骤和实现模糊解耦的控制系统结构。仿真结果表明,本方法控制效果和解耦效果比较显著。     

长期储存的密封包装弹药防潮管理研究

本文从理论上详细分析了影响密封包装弹药内部湿度的可能因素,提出了密封包装弹药在长期储存过程中应该采取的防潮管理措施及对策。     

火焰原子吸收光谱法测定铝合金中锌镁铜铁

测定铝合金中锌、镁、铜、铁等元素含量的方法很多,湿法分析由于操作繁琐,时间冗长等缺点,现已应用不多,本法用火焰原子光谱法测定铝合金中锌、镁、铜、铁等元素,方法简便、快速、准确、干扰较少,精密度高。已应用于我公司对LC4、ZL401等铝合金中各元素的分析。     

外军装备保障信息化建设管窥

随着信息技术的迅猛发展和在军事领域的广泛应用,军队的作战和保障都产生了革命性的变化。为适应未来战争的需要,外军在努力发展信息化武器装备的同时,也十分重视装备保障信息化建设。在装备保障指挥管理、物资器材供应、装备维修、保障人员培训等方面都大量应用信息技术,力求实现装备保障“精确化”的理想目标。     

脉冲电晕放电降解马拉硫磷染毒空气的实验研究

以马拉硫磷为毒剂模拟剂,采用脉冲电晕放电等离子体对其染毒空气进行洗消实验研究,考察了脉冲电压、脉冲频率和气体流量对洗消效果的影响。结果发现洗消率随着峰值电压和脉冲频率的增大而提高,随着气体流量的增大而减小。对不同浓度马拉硫磷的降解结果表明,随着初始浓度的增大洗消率降低,但绝对消除量增加。采用了GC-MS和化学方法对洗消产物进行定性分析．     

组合干扰下的雷达干扰压制区边界

对组合干扰作用下雷达干扰压制区边界进行了建模分析.根据热噪声下的标准雷达方程,采用在典型环境下搜索雷达的实例来推导和建立了在干扰、杂波和组合干扰源的环境下压制区边界的估算方程.本模型充分考虑了地面射频效应对雷达探测性能的影响,贴近实际,可为电子战指挥员进行战斗部署提供辅助决策支持.     

一般模型的核函数

基于Ｖｏｌｔｅｒｒａ理论和Ｗｉｅｎｅｒ理论,较为系统地研究了连续与离散时不变一般模型及其在有外部扰动情况下的Ｖｏｌｔｅｒｒａ核和Ｗｉｅｎｅｒ核的计算方法,并给出计算结果与数值模拟算例。     

Theoretical design of new bridge-ring insensitive high energy compounds by selected normal Diels-Alder reactions between NH2-substituted oxazoles and NO2/NF2/NHNO2-substituted ethylenes/acetylenes

In this work, NH₂-substituted oxazoles and NO₂/NF₂/NHNO₂-substituted ethylenes/acetylenes were designed and used as dienes and dienophiles, respectively, in order to develop new bridge-ring insensitive high energy compounds through the Diels-Alder reaction between them. The reaction type, reaction feasibility and performance of reaction products were investigated in detail theoretically. The results showed that dienes most possibly react with dienophiles through the HOMO-diene controlled normal Diels-Alder reaction at relatively low energy barrier. Tetranitroethylene could react with the designed dienes much more easily than other dienophiles, and was employed to further design 29 new bridge-ring energetic compounds. Due to high heat of formation, density and oxygen balance, all designed bridge-ring energetic compounds have outstanding detonation performance, 16 of them have higher energy than HMX (1,3,5,7-tetranitro-1,3,5,7-tetrazocine) and 2 others even possess comparative energy with the representative of high energy compounds CL-20 (2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane). The predicted average h₅₀ value of these bridge-ring energetic compounds is 83 cm, showing their low impact sensitivity. The NH₂ groups could obviously impel the proceeding of Diels-Alder reactions, but would slightly decrease the energy and sensitivity performance. In all, the new designed bridge-ring compounds have both high energy and low sensitivity, and may be produced through Diels-Alder reactions at relatively low energy barrier. This paper may be helpful for the theoretical design and experiment synthesis of new advanced insensitive high energy compounds.