基于同心筒结构的共架发射系统武器发射时域协调方法

针对同心筒结构的共架发射系统,研究多武器共架发射时为保证舰艇和武器安全需解决的发射协调问题,提出了时域协调的方法。首先,给出了时域协调的概念,分析了发射速率、燃气排导、初始飞行弹道交叉、防空导弹发射优先等因素对时域协调的影响;然后,建立了基于发射令控制的发射时序模型、发射时间间隔模型及发射优先级模型;最后,对时域协调方法进行了算例验证。结果表明:通过时域上合理地控制武器发射间隔时间可以保证系统安全,同时最大程度地发挥系统效能。     

基于公共燃气排导结构的共架发射系统武器选择与布局方法

公共燃气排导结构和同心筒结构的共架发射系统由于燃气排导机理不同,其对武器发射的影响及在武器选择、布局等方面均存在较大差异.针对公共燃气排导结构的共架发射系统分析了公共燃气排导对武器发射的影响,提出了武器选择与布局方法,通过算例进行了验证并得出结论:公共燃气排导结构的共架发射系统武器布局上应采取分散布局,武器选择上应优先选择“无发射活动、对应武器数量较多、烧蚀值较小”的模块,且按照模块编号依次交替在不同模块进行武器发射.     

射面交叉分析及武器控制方法研究

通过对影响多武器同时射击安全的重要因素——射面交叉的研究,分析了产生射面交叉的原因,建立了射面交叉的判断模型,研究了控制武器的方法,建立了禁止射击信号的产生模型。研究结果对舰艇的总体设计、武器控制以及作战使用有一定的指导意义。     

编队区域防空舰空导弹冲突判断与消解

通过分析垂直发射舰空导弹飞行弹道误差,尤其是平台导航误差对导弹飞行弹道的影响,在统一的编队地理坐标系中建立导弹飞行空间模型,并在此基础上建立编队导弹火力冲突判断模型,提出2种用于火力冲突消解的导弹缓射时间计算方法。仿真结果表明,平台导航误差对导弹火力冲突判断的影响不可忽略,所提出的火力冲突判断和消解方法可有效解决编队防空武器冲突问题。为解决编队区域防空作战中火力兼容和武器协同使用的问题提供了参考。     

网络瞄准下武器协调发射与制导决策方法

针对网络瞄准下战斗机的作战特点,提出了一种武器协调发射与网络制导方法。首先分析了网络瞄准的基本概念与本质内涵,并结合网络化火控系统的特点,研究了网络瞄准下空空导弹攻击方式;然后构造了武器协调发射和网络制导的优势函数,建立了网络瞄准下武器协调发射决策和网络制导决策的数学模型,并通过该模型来选取合理的武器发射节点和网络制导节点,实现网络化打击。仿真结果表明,所提方法不仅可以根据战场态势和空中作战逻辑,实时决策出使网络整体优势达到最大的武器发射节点和网络制导节点,而且能够对武器发射和制导交接的时机以及战斗机的攻击方式作出规划。     

舰艇编队跨平台武器射弹命中前火力兼容判断研究

在舰艇编队协同交战模式下,针对跨平台武器射弹的命中前弹道段火力兼容判断问题,通过交战弹道命中前的空间关系与火力冲突分析,提出火力兼容性量化指标,并基于射击效力计算提出了指标的计算模型和求解方法,实现了跨平台武器射弹命中前火力兼容性的量化表征。典型实例仿真结果表明:针对射向交叉、射界重叠的跨平台武器运用,该方法能够量化描述其在命中前弹道段的火力兼容性,克服定性判断对武器运用管控粒度过粗的弱点。     

增程火箭助飞鱼雷

增程火箭助飞鱼雷是新型的远程反潜武器。“米拉斯”、“超依卡拉”、“海长矛”代表了下一代助飞鱼雷的发展方向。本文介绍了当今先进的火箭助飞鱼雷的现状和发展趋势,由此可看到未来反潜武器的火箭助飞鱼雷将朝着增程、巡航与弹道相结合的道路发展,为解决三弹共架共库的问题,增程火箭助飞鱼雷最终是采用垂直发射的方式发射。     

基于效能优先原则的武器决策方法研究

武器站是适应未来战场快速反应和应急机动等多功能要求的新型武器系统,其火力配置多种武器组合,当发现攻击目标时,选择哪种武器进行打击,目前主要通过作战人员依靠人工经验进行决策.针对上述问题,提出了基于效能优先原则的武器决策方法,该方法充分考虑作战任务、目标属性、天气条件、打击费用等影响因素,构建了武器决策效费比模型,通过作战实例分析,验证了该模型可有效解决武器站在多个作战条件下的武器决策问题.     

舰载武器共架共系统技术发展

本文简要介绍了舰载武器共架系统的发展现状。重点介绍了舰载弹炮共架近程武器系统的现有系统、各系统比较以及在系统研制时应考虑和解决的技术问题,和未来舰载武器共架共系统的发展趋势。最后对发展我国舰载武器共架共系统提出一些看法。     

武器发射装置长期贮存中的蠕变研究北大核心

武器发射装置在长期贮存过程中,随时间推移会出现蠕变现象。为研究其对武器发射的影响,基于有限元方法对武器长期贮存及其发射过程进行了仿真,研究了发射倾角与贮存时间对发射装置中的蠕变及贮存后武器发射过程的影响。研究结果表明:发射装置在贮存过程中经过约1年时间结束瞬态蠕变阶段,进入稳态蠕变阶段,武器受底部承载装置蠕变的影响发生偏转,且偏转量与发射倾角和贮存时间成正相关;经过长期贮存后进行发射的武器偏离了初始发射轴线,贮存过程中蠕变对发射装置结构和武器发射过程产生的影响不可忽略。     

Terrorism,insurgency, kidnapping,and security in Africa's energy sector

Energy continues to serve as the bedrock of modern economies and the main driver of modern society. For Africa, the production and supply of energy resources such as crude oil, natural gas, uranium, coal, biomass, biofuels and other renewables are an important source of employment, rents, taxes, royalties and profits. This sector brings in several tens of billions of dollars of revenue annually. The production and delivery of such resources, however, depend on critical infrastructures such as pipelines, refineries, processing plants, terminals, rigs, electrical energy pylons, substations, pump stations, vessels, and tankers. These infrastructures have been attacked by terrorists, insurgents, vandals and saboteurs, all of whom see them as targets against which to register their grievances and extract concessions from the state. This paper is a chronological account of some of the documented incidents of terrorism, insurgency, kidnapping, destruction, sabotage, and human casualties suffered in the oil and gas sectors in Africa between 1999 and 2012. It is based on data extracted from the databases of the RAND Database of World Terrorism Incidents and the University of Maryland's Global Terrorism Database (GTD).     

Helping hands: civil–military cooperation and Italy's military operation abroad

In the Post-Bipolar Era the growing complexity of the military operations requires a new approach for the resolution of international crises. Since the end of the Cold War, peace support operations (PSO) have become the mainstay and principal occupation of most Western armies. At the same time, Italy has been one of the most important actors in such an area. The article focuses on the cooperation between military and civil components (a process called CIMIC) as a key variable in the Italian PSOs. We will analyse in detail the main lessons learned from past military interventions as well as the general context in which new tendencies are taking place. The maintaining of a minimum security frame becomes essential to fulfil activities ‘collateral’ to the mission: reconstructing services and infrastructure, food distribution, water and medication, law and order, de-mining, training of local forces, and supporting local institutions. These are the main tasks to obtain thrust and support from the population.     

Tacit support for terrorism: The rapprochement between the USSR and Palestinian guerrilla organizations following the 1967 war

This article demonstrates the inconsistent and wavering Soviet attitude towards national liberation movements in general and the Palestinian organizations in particular. Until the late 1960s, the Soviets viewed these organizations with suspicion, hesitating to engage in political dialogue with them. However, in the 1970s, political and military events in the region, as well as modifications in the Kremlin's Cold War strategies, led to a general shift towards the Middle East in Soviet foreign policy. Soviet leaders showed increased willingness to provide certain Palestinian organizations with arms with which to conduct terrorist activities against Israeli, pro-Israeli, Jewish and Western targets. The article explores the complex relations between Palestinian organizations and the USSR in the field of international terror. The study also exposes and analyzes the nature and content of Soviet–Palestinian arms dialogues and transactions. It provides clear evidence that Soviet policymakers and other luminaries were fully informed of, and sometimes directly involved in, these transactions and dialogues at the highest levels.     

A1 Qaeda and the radical Islamic challenge to western strategy

The September 11 global crisis prompted by the attacks on the World Trade Center and the Pentagon raises major questions concerning the nature and trajectory of terrorism in the post-Cold War global order. Hitherto, terrorism has been largely debated by analysts at the level of nation states. Terrorist and insurgent movements have also been largely anchored in nationalist and ethnic power bases even when they have sought to mobilise a transnational ideological appeal on religious or class grounds. There have been a few exceptions to this pattern such as the alliance between the German Baader-Meinhof group and the Japanese Red Army Faction, but even such international alliances as this did not, until at least the 1980s, presage anything like a global terrorist network necessitating a global strategic response. This study examines terrorism and global strategic responses.     

Helping hands: external support for the KNU insurgency in Burma

This article analyses to what extent the Burmese KNU insurgency made use of external support from states, refugees, and diasporas. Based on extensive fieldwork it is concluded that support from neighbouring states and refugees has for years kept the Karen rebellion alive. Western countries perceived forms of resistance to the illegitimate Burmese regime as just and have therefore played a crucial role in the continuation of conflict in Karen State. It is important that policymakers and donors as well as executing organizations continue to reflect critically on the way they exercise their work.     

基于GTST-DMLD-ESD的装备RMS建模仿真

装备的RMS是装备的重要设计参数,是影响战备完好和保障能力的关键因素.引入GTST-DMLD作为主要建模工具,建立起装备系统的RMS描述模型,以ESD为补充和扩展,对维修过程进行建模.并以GTST-DMLD-ESD模型作为装备RMS仿真的核心,对装备RMS仿真模型的总体框架进行了研究,并对各模块进行了较为详细的探讨.     

The UK,interrogation and Iraq, 2003–2008

The UK’s interrogation operations during the conflict in Iraq (2003–2008) are often portrayed by the media as involving significant amounts of mistreatment. This article demonstrates that these practices are not necessarily representative of the UK’s interrogation operations across this conflict. In doing so it contributes to the limited literature on the practice of interrogation and on the UK’s combat operations in Iraq. The UK’s interrogation capability, and therefore its intelligence-gathering capability, is shown to have rested primarily with the military’s Joint Forward Interrogation Team (JFIT). The JFIT suffered from limitations to the number, training and experience of its interrogators and interpreters. It is argued that maintaining a permanent, higher level of preparedness for interrogation by the British armed forces is desirable.     

Remembering and forgetting Mirambo: Histories of war in modern Africa

ABSTRACT

While the study of organised violence is considered essential to understanding the history of the West, and accordingly imbued with various layers of meaning and remembrance, war is widely regarded as inimical to the modern nation in Africa and stable development more broadly. Using examples drawn from primarily from East Africa, this paper considers the ways in which warfare in the deeper (‘precolonial’) past has been framed and envisioned in recent decades, in particular by governments whose own roots lie in revolutionary armed struggle and who began life as guerrilla movements. While in some cases particular elements of the deeper past were indeed mobilised in pursuit of contemporary political goals, in many other scenarios histories of precolonial violence were beheld as problematic and unworthy of remembrance. This paper highlights the paradox and ambiguity which has attended the memory of key aspects of Africa’s deeper past.     

Cyber sheiks and grassroots jihadis: the war in Syria and the devolution of the Bosnian Salafi communities

ABSTRACT

What was the scope of the Bosnian jihadi participation in the war in Syria? Did the Bosnian volunteers tend to join one particular faction? Why did the Bosnian youngsters decide to join the holy war in the Levant? Was this an organized and hierarchical process or was this a grassroots movement? Last, were all the Salafis in Bosnia supportive of this dynamic or did this process cause internal frictions? These are some of the questions that this research will try to answer.