数字化部队作战能力评估指标体系

为加深对数字化部队作战能力的研究,完善数字化部队的编制体制,以系统科学与工程理论为指导,针对现代战争系统的四大要素对现代战争全过程进行分析,构建数字化部队战争系统模型分解图,将现代战争系统分解成部队与武器子系统、电子信息子系统、决策指挥子系统、后勤保障子系统.最后对各子系统的能力指标内涵及构成进行了详细的解释,并对其获取和度量方法进行了总结.     

灰色理论GRA模型在舰船生命力论证中的应用

运用灰色系统理论中的灰色关联分析法对舰船生命力进行了综合评判,建立了在不同设计方案中的优选模型,并以舰艇动力系统的设计为例,运用GRA对其进行优化选型。结果分析表明,此方法简单易行,结果准确可靠,可为系统设计方案的选优提供理论依据。     

空天防御作战规划问题研究

从技术与作战结合的角度,系统分析空天防御作战系统和对抗特点等问题,构建了"态势组态—目标排序—目标分配—冲突动态最优预测"新型作战规划方法,提出"博弈控制理论与方法",论述了空天防御作战规划方法论。对空天防御作战规划理论研究有一定参考价值,为发展空天防御作战规划系统提供了研究思路和技术支撑。     

一种基于熵值的装备维修性评价模型

本文提出了一种基于熵值的装备维修性综合评价模型,该模型包括评价指标的熵值度量模型、装备维修信息结构图和行为控制图以及基于熵值的评价指标聚合模型等3个方面.本研究首先在分析装备维修一般过程和维修性评价内容的基础上,构建了定性指标和定量指标相结合的装备维修性评价指标体系,分析了维修任务复杂度、维修保障复杂度和基于熵值的维修...     

基于前景理论和证据推理的混合型多属性决策方法

针对属性权重完全未知的混合型多属性决策问题,提出一种基于前景理论和证据推理的决策方法。通过直觉模糊数对精确数、区间数和语言变量3种混合型属性的决策信息进行统一,根据前景理论对决策信息进行转化;提出基于直觉模糊熵与相似度的属性可靠性评估方法,结合属性重要度确定属性权重;采用证据推理算法集结属性信息,得到方案的综合前景值,并以此进行方案排序。算例分析结果表明,所提方法具有较强的区分能力,能够有效降低决策结果的不确定性,对混合型多属性决策问题具有较好的适用性。     

The struggle of a Kantian power in a Lockean world – German leadership in security and defence policy

ABSTRACT

German security and defence policy has undergone substantial transformation. This transformation requires an unprecedented level of political leadership, suggesting that Germany needs to solve the dilemma of how to supply leadership to increasingly demanding partners. What are the conditions under which German leadership can unfold in security and defence policy? To what degree do German role-conceptions of international agency and role-expectations of German leadership coincide? What kind of leadership outputs are produced? This study offers a comprehensive analysis of German security and defence policy in terms of supply (role conceptions) and demand (role expectations). We outline three leadership role conceptions present in the German strategic debate, which we then assess in the context of the Wendtian theory of cultures of anarchy. We then analyse Berlin's leadership in terms of outputs via the case study on Anchor Army and the Framework Nations Concept. We conclude that while Germany has tried to match leadership role expectations both rhetorically and in action, Berlin's leadership inputs have so far been insufficient. This has led to an imbalance in terms of role conceptions and expectations hampering effective German leadership in security and defence policy.     

Moving Beyond Population-Centric vs. Enemy-Centric Counterinsurgency

Historically, insurgency is one of the most prevalent forms of armed conflict and it is likely to remain common in the foreseeable future. Recent experiences with counterinsurgency in Iraq and Afghanistan offer many lessons for future counterinsurgents, but the discourse on the subject continues to be mired in a traditional dichotomy pitting population-centric approaches to counterinsurgency against enemy-centric approaches. Historical analysis suggests that this traditional dichotomy is not a sufficiently nuanced way to understand or plan for such operations. Instead, discussions of counterinsurgency should focus on two dimensions: actions (use of physical force vs. political or moral actions) and targets (active insurgents vs. insurgent support). This perspective divides the space of possible counterinsurgency efforts into four quadrants, suggesting that effective counterinsurgency campaigns find a balance of effort across the four quadrants that is well matched to the specific context.     

交流感应电动机精确解耦的自抗扰控制

为了实现交流感应电动机高性能调速,快速跟踪变化的负载转矩,对静止两相αβ坐标系中的电动机数学模型精确反馈线性化,实现转速和转子磁链系统的完全解耦。针对解耦的转速和磁链子系统的设计2个结构完全相同的自抗扰控制器,实现对转速和磁链的完全独立控制。实验研究表明:电动机转速和磁链分别大约在0.7 s和0.3 s时达到参考值;负载转矩的变化将引起转速7 rad·s~(-1)范围内的变化,但磁链仍保持给定值;当转速稳定时,电磁转矩在1 s时间内能快速跟踪变化的负载转矩,其超调量不超过20 N·m;控制系统能适应转子电阻±10%和定子电阻+10%范围的变化。     

钢球侵彻不同靶标的相似性分析

为研究相同弹丸侵彻不同靶标所造成损伤之间的相似性,以钢球侵彻明胶造成的瞬时空腔的最大直径为研究对象,基于相似理论推导出瞬时空腔最大直径的相似准则方程,利用钢球侵彻明胶的实验数据求解出准则方程的系数和指数,最后通过钢球侵彻猪后腿实验验证了所得到的准则方程可用于不同靶标之间的相似性分析,并具有准确性和合理性。     

基于珠式模型的绳系卫星安全交会过程建模与仿真

安全交会是绳系卫星空间应用的一个重要拓展。为满足安全交会的高精度需求,考虑重力、拉力和阻尼力的作用建立了绳系卫星系统三维珠式模型。讨论并选择了一种匀速-匀减速展开策略,推导得到平衡位置零相对速度条件下的安全交会末端约束,在此基础上基于反馈线性化基本原理设计了一种子星喷气推力的安全交会控制律。数值仿真基于低轨道和地球同步轨道条件来进行,4个算例的仿真结果验证了珠式模型条件下,匀速-匀减速展开策略及反馈线性化交会控制律的理论可行性,且交会控制力需求表现为同步轨道低于低轨。该方法可为绳系卫星精确交会技术提供一定参考。