MIDDLE EAST NONPROLIFERATION

The Middle East is a crucial region for the global nonproliferation regime. In 2010, the state parties to the Treaty on the Non-Proliferation of Nuclear Weapons proposed a conference on a Middle East Weapons of Mass Destruction-Free Zone. The nuclear weapon-free zone model, on which this idea builds, has achieved important results in other regions, but faces especially stark challenges in the Middle East. However, the attempt to apply the boldly imaginative zone approach to the Middle East holds promise for building a more inclusive dialogue on nonproliferation and regional security.     

On the Road to the 2015 NPT Review Conference

The second session of the Preparatory Committee for the 2015 Review Conference (RevCon) of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) highlighted two issues in particular—progress toward a Middle East Weapons of Mass Destruction–Free Zone and the Joint Statement on the humanitarian impact of nuclear weapons—that may not only greatly affect the health and vitality of the NPT and the 2015 RevCon, but possibly also have implications for the international nonproliferation regime as a whole. Dr. William Potter, director of the James Martin Center for Nonproliferation Studies, interviewed Ambassador Cornel Feruta, chairman of the 2013 PrepCom, to discuss these and other issues related to the meeting and the future of the treaty and its review process.     

Long-rod penetration: the transition zone between rigid and hydrodynamic penetration modes

Long-rod penetration in a wide range of velocity means that the initial impact velocity varies in a range from tens of meters per second to several kilometers per second. The long rods maintain rigid state when the impact velocity is low, the nose of rod deforms and even is blunted when the velocity gets higher, and the nose erodes and fails to lead to the consumption of long projectile when the velocity is very high due to instantaneous high pressure. That is, from low velocity to high velocity, the projectile undergoes rigid rods, deforming non-erosive rods, and erosive rods. Because of the complicated changes of the projectile, no well-established theoretical model and numerical simulation have been used to study the transition zone. Based on the analysis of penetration behavior in the transition zone, a phenomenological model to describe target resistance and a formula to calculate penetration depth in transition zone are proposed, and a method to obtain the boundary velocity of transition zone is determined. A combined theoretical analysis model for three response regions is built by analyzing the characteristics in these regions. The penetration depth predicted by this combined model is in good agreement with experimental result.     

地空导弹对非典型目标拦截能力的仿真计算方法

地空导弹对目标的拦截能力是地空导弹作战部署建立过程中至关重要的一环。战场电磁环境、目标特性、地形遮蔽等因素都对地空导弹的拦截能力有着直接的影响。给出了各种条件下地空导弹对非典型目标拦截能力的仿真计算方法,并就响尾蛇地空导弹对巡航导弹的拦截能力进行了计算分析,得到了有益的结论。     

弹炮结合武器效能仿真的毁伤模型

针对弹炮结合武器和所拦截空中目标的特点,探讨建立弹炮结合武器仿真的毁伤模型.分析了目标的轨迹特点,建立了空间杀伤区的表示模型,针对不同的俯冲攻击倾角,分别建立了详细的拦截纵深模型,最后给出了导弹和高炮武器分系统的可拦截次数模型.该模型能较精确地对毁伤效能进行仿真.     

超声速燃烧火焰放热区结构CH-PLIF成像技术

超燃冲压发动机是吸气式高超声速飞行器的关键部件之一，超燃冲压发动机燃烧室内火焰结构的研究对揭示超声速燃烧的稳焰机理具有重要意义。利用平面激光诱导荧光（Planar Laser-Induced Fluorescence，PLIF）技术测量了超声速燃烧直连式试验台燃烧过程中重要自由基CH的二维分布，实现了超声速燃烧火焰放热区结构的可视化。在开敞空间的低速射流火焰炉中使用甲烷/空气预混火焰对CH-PLIF技术进行了初步验证和系统优化，再利用CH-PLIF技术在凹腔稳焰的超燃直连台上实现了超声速燃烧火焰放热区结构的二维可视化，并与OH-PLIF和CH自发辐射测量结果进行了对比。实验结果表明，在开敞空间的低速射流预混火焰中，火焰放热区会发生扭曲、褶皱和分裂等现象，随着雷诺数的增大，火焰锋面褶皱程度更加显著；在凹腔稳焰的超声速燃烧中，火焰放热区高度褶皱和破碎，放热区结构的厚度为0.5～6.5 mm，同时也存在放热区的分裂与剥离等现象。CH-PLIF技术能够以较高的空间分辨率更准确地呈现凹腔超声速火焰放热区的结构，其在凹腔稳焰的超声速燃烧诊断中具有重要的应用价值。     

舰载光电装备技术在海军区域综合电子信息系统中的应用

阐述了海军区域综合电子信息系统的组成部分及其概念内涵．根据现代海战的基本特点,论证了现代海战对区域综合电子信息系统的作战需求,论述了光电装备技术在区域综合电子信息系统中的应用．     

基于弹道仿真的垂直发射型舰空导弹杀伤区模型

以垂直发射型舰空导弹为研究对象,分别建立了无控段、转弯段和制导段弹道数学模型。通过对弹道进行仿真,获取给定脱靶量的命中点集合,并拟合得到杀伤区。该模型基本满足针对不同高度、速度入侵目标相应杀伤区的解算,所得数据可作为舰艇防空作战指挥决策、编队防空队形配置和编队协同防空作战效能评估、防空火力协同的依据。     

火灾区域模拟原理及CFAST软件应用

分析火灾区域模型的理论基础 ,介绍CFAST软件的功能及操作 ,并应用该软件对某建筑物二楼舞厅的火灾安全性进行评估     

舰舰协同防空的舰空导弹杀伤区分析

针对舰艇编队协同防空时的耦合杀伤区形状及纵深等问题进行了研究,以定量地对编队耦合杀伤区进行简化描述。分析了单舰对典型目标的杀伤区特性,探讨了舰艇编队的典型防空队形,研究了纵向上递阶多层次、横向上同阶耦合的"递阶封闭圈原理"。以一阶耦合杀伤区为重点,依据攻击目标的不同,将其分成相对航路捷径为零和相对航路捷径均非零两类情况建立了耦合杀伤区纵深的计算模型,并扩展到了高阶耦合的情况。研究了耦合杀伤区与舰舰间距和来袭目标进攻舷角等参数的相互关系以及灵敏度。结果表明建立的模型符合实际,具有一定的指导意义。