The Afghan model in northern Iraq

In Operation ‘Iraqi Freedom’, as the Coalition's heavy forces fought in the South, in the North a handful of special operations forces, working with Kurdish rebels, clashed with the Iraqi army along the Green Line. In operations reminiscent of those used a year earlier to defeat the Taliban in Afghanistan, the lightly armed and heavily outnumbered Coalition forces called in air strikes to defeat Iraq's regular and Republican Guard army divisions. This article tells the story of these operations and discusses some of their implications for future US military policy. The success of the Afghan model in Iraq goes a long way toward demonstrating the efficacy of new air-heavy tactics and shows the strategic value of using light indigenous allies to replace heavy US land forces in both conventional combat and occupation operations.     

The 1950 ‘Ambassador's agreement’ on USAF bases in the UK and British fears of US atomic unilateralism

The article explores the 1950 ‘Ambassador's Agreement’ (named after US Ambassador Lewis Douglas) about establishing long-term US air bases in the UK. During the discussions British representatives expressed resentment of American pressure and were concerned about the expense that developing the bases for American purposes might entail. There were even fears that Washington might use the airfields to launch an atomic bomb attack on the USSR without regard to the views of the UK government. The British consented to providing the bases because they wanted to enmesh the US further in UK and Western European defence. For their part American negotiators had wanted to further US atomic strategy without delay. Although the agreement imposed no restriction on the use of the airfields, some US officials believed that in a crisis the UK government might try to prevent them being used for atomic bombing missions.     

基于动网格的翼型设计优化

针对传统基于代理模型的翼型优化的缺陷,提出采用基于动网格的翼型优化;针对基本Hicks-Henne方法后缘不光滑情况进行了改进;采用自编程序实现动网格生成,通过集成商业软件Pointwise和CFD计算软件Fluent完成边界条件生成和流场解算,并实现上述程序和软件间的数据交互和自动化,整个优化流程在iSIGHT平台下执行,优化算例表明基于动网格的翼型优化方法能大幅提高翼型性能,节省大量的重复性操作,增加优化结果的鲁棒性和可信度,是翼型优化中的一种有效方法。     

Lessons in airpower projection: Indochina and Algeria

The lessons from the two French counterinsurgencies, Indochina and Algeria, give rise to a new understanding of the projection of airpower in remote and hostile environments and the purpose, design, and use of aircraft in counterinsurgency. In both Indochina and Algeria, the campaigns were ones of poverty, and it is their imaginative management under severe resource constraints that provides thoughtful and applicable lessons for today. In both cases, airpower held the promise of delivering victory and solving the resource issue. In Indochina, acquisition of the needed aircraft, operating knowledge, and experience came too slowly to realize this promise. In Algeria, the French embraced the lessons from Indochina and were quite successful and innovative in the use of airpower. The lessons can be reduced to four requirements: (1) a network of airfields for liaison, ground-support, and intra-theater airlift to enable effective air support of ground forces; (2) a solid, reliable, and simple ground-support aircraft capable of operating from forward airfields within range of ground engagements; (3) a capable intra-theater heavy-lift transport to supply the extended ground forces; and (4) helicopter capability to enhance tactical troop mobility and support.     

对抗条件下防空武器系统效能评估

空袭和防空是对立存在的。针对现有防空武器系统作战效能评估模型的不足,指出了研究攻防对抗条件下评估防空武器系统作战效能的必要性。通过对防空武器系统与空袭敌机攻防对抗过程的分析,建立了攻防对抗条件下防空武器系统的效能评估模型,借助计算机仿真证明了该模型符合实际作战情况,具有较高的置信度,是对传统防空武器系统效能评估方法的一种完善和补充。     

水面舰艇编队空中威胁扇面角预测模型

针对水面舰艇编队空中威胁扇面角的预测问题,分析了影响空中威胁扇面角大小的主要因素。以具有航路规划能力的远程反舰导弹为对象,从航空兵及远程反舰导弹的作战使用特点和装备性能限制着手,建立了计算威胁扇面角的数学模型。通过仿真分析,得出了主要参数对威胁扇面角的影响规律,为水面舰艇编队对空防御兵力的配置提供了依据。     

基于无标度网络的防空反导系统构建

构建高效的防空反导系统是防空反导作战的基础。运用复杂网络理论,建立基于无标度网络防空反导系统模型,并将其统计特征同基于WS小世界网络的模型进行了比较,得出基于无标度网络的防空反导系统有更好鲁棒性和抗毁性,对网络化防空反导系统的构建有一定参考价值。     

灰色模糊物元分析的要地防空威胁评估

结合要地防空作战的特点,分析了影响目标威胁评估的因素.针对指标信息的不确定性,将模糊物元分析与灰色系统理论相结合,并运用AHP法和信息熵法进行组合赋权,建立了基于组合赋权的灰色模糊物元分析的要地防空威胁评估模型.在对来袭目标进行威胁评估时,将目标的各个特征作为物元的事物,以其各项评价指标及模糊灰量值构造复合模糊灰元.通过计算与标准模糊灰元之间的关联度,实现对空袭目标的威胁评估与排序.实例分析表明该方法可靠有效.     

基于对抗的防空体系结构演化性概念建模

为定量研究空防体系对抗过程,基于对空防体系对抗相关研究方法分析,提出从体系结构角度研究空防体系对抗.通过阐述对抗条件下的防空体系结构演化性建模思想,提出空防体系对抗实质是一个防空体系结构“动态编成—对抗消耗—优化修复”动态循环演化过程.在此基础上,围绕其中3个环节进行防空体系结构演化性概念建模,以此为空防体系对抗定量建模研究提供一种新思路.     

FAE野外空中爆炸效应实验研究及其一次起爆机理探讨

野外进行1．8kg的FAE静爆实验,采用不同配方的纯固态燃料和液一固混合燃料与等质量的TNT对比分析。实验结果表明,FAE的爆炸效果明显优于等质量的TNT,而纯固态FAE爆炸性能强于液一固混合FAE;FAE爆炸后测到的超压分布呈现单调减趋势,这是由于测量点都分布在云爆区范围之外;FAE的云雾分散效果优于等质量的TNT装药,火焰持续时间也长。通过高速摄影图片看出,合适配方的纯固态无约束的FAE弹体火球的持续时间与有约束的液一固混合FAE弹体相当。分析了纯固态FAE爆炸后超压峰值时刻与火球最大直径时刻不同步的原因,探讨了纯固态FAE一次起爆机理。