关于美军综合后勤保障的综述

综合后勤保障是美军武器系统研制与采办过程的一项重要活动,本文阐述了这一活动的基本概念、实质内容、发展动态以及对我军的启示。     

空天防御体系及技术发展

网络空间攻防技术对国家安全影响的地位日趋上升,已成为世界主要国家超前布局、优先发展的重要技术领域。文章系统梳理了主要国家在态势感知技术、攻击技术、防御技术、控制技术、支援保障技术等领域所取得重要进展和面临的问题,重点分析和前瞻了网络空间攻防技术发展的新趋势和新途径。     

空中目标战术意图层次推理框架及实现

以提高对空态势感知能力为目的,着眼于构建以专家系统为特征的目标意图推理决策支持系统,首先根据目标意图的含义从意图、行动和状态三个层次进行了层次表示,并简要分析了实现意图推理的六种途径.根据空中目标的作战使用等领域知识将其意图从属性类型、战术类型、威胁类型和任务类型四个层次进行了分解.基于意图推理输入信息的分布性特征以及意图的层次分解建立了基于判定树的意图层次推理框架以及数据驱动的推理控制机制.该框架为建立空中目标战术意图的推理实现方法提供了重要的依据.     

“军民融合式”油料保障

文章探讨"军民融合式"油料保障的基本内涵,分析当前推行"军民融合式"油料保障面临的主要困难,从转变思想观念、健全法规体系、建立长效机制、优化资源配置、构建信息网络五个方面提出了建立"军民融合式"油料保障的对策措施。     

Offset Contracts as an Insurance Device in Building the National Security

A dynamic multi-stage decision-theoretic approach is introduced to establish the optimal offset and its incidence, the contract price arising from bargaining, and the scale of the acquisition. A new rationale is suggested for offsets in terms of their role as an insurance devise. Results are derived for the pricing of delivery contracts subject to offset claims and their national security implications. It is shown that the national security is strictly convex in the offset transaction. As to the incidence of the offset, the offset claim is shown to be capitalised in the delivery price. The bargaining price is shown to depend on the value of the product to be delivered for the national security, the relative negotiation power of the contracting partners and the social cost of public funds. The analysis highlights the expectation effects of offsets on the bargaining price and the scale of delivery. The results aid in explaining why offsets are widely used in procurement contracts for defence materiel. As they contribute to the national security, they should be allowed to survive and not be denied under competition laws.     

多点喷射空气酒精燃气发生器试验验证

为有效解决现有燃气引射气源存在的诸多缺点,适应一种引射系统大流量、小型化的需要,在综合分析各燃气引射气源方案的基础上,研制了一种以空气、酒精作为推进剂的多点喷射结构的燃气发生器,并开展了多种工况下的试验研究。结果表明:采用的多点喷射方案大大提高了空间利用率,有效满足了引射系统小型化的要求;喷雾性能好,喷雾锥角及粒径优于设计指标要求;点火可靠性高,解决了领域内现有燃气发生器点火可靠性低的缺点;点火迅速,燃烧平稳,可实现较为均匀的出口温度场;燃气发生器工作范围较宽,能在余气系数2.52～4.34范围内稳定燃烧;高效的火焰筒内壁空气冷却方式有效保证了燃气发生器长时间工作运行。     

IC卡技术在器材保障信息管理中的应用

主要就IC卡技术在我军器材保障信息管理中的初步应用,阐述了基于IC卡技术的便携式器材保障信息系统的特点和系统组成方案,并介绍了实现这种系统方案的关键技术.     

对装备可计量性的思考

本文在提出可计量性的定义与对可计量性理解的基础上,梳理了可计量性与装备"五性"的关系,分析了可计量性研究对计量保障的作用,以及可计量性在武器装备全系统全寿命周期中的作用,并对如何开展在研和现役武器装备的可计量性研究提供了思路。     

Experimental research on the instability propagation characteristics of liquid kerosene rotating detonation wave

In order to study the instability propagation characteristics of the liquid kerosene rotating detonation wave (RDW), a series of experimental tests were carried out on the rotating detonation combustor (RDC) with air-heater. The fuel and oxidizer are room-temperature liquid kerosene and preheated oxygen-enriched air, respectively. The experimental tests keep the equivalence ratio of 0.81 and the oxygen mass fraction of 35% unchanged, and the total mass flow rate is maintained at about 1000 g/s, changing the total temperature of the oxygen-enriched air from 620 K to 860 K. Three different types of instability were observed in the experiments: temporal and spatial instability, mode transition and re-initiation. The interaction between RDW and supply plenum may be the main reason for the fluctuations of detonation wave velocity and pressure peaks with time. Moreover, the inconsistent mixing of fuel and oxidizer at different circumferential positions is related to RDW oscillate spatially. The phenomenon of single-double-single wave transition is analyzed. During the transition, the initial RDW weakens until disappears, and the compression wave strengthens until it becomes a new RDW and propagates steadily. The increased deflagration between the detonation products and the fresh gas layer caused by excessively high temperature is one of the reasons for the RDC quenching and re-initiation.     

驱护舰编队舰空导弹反导能力探讨

根据驱护舰编队反导队形的配置和舰空导弹的战术技术性能 ,对驱护舰编队多舰协同反导能力进行分析 ,计算来袭目标处于不同舷角时的协同反导区域大小和协同反导时间 [1 ] 。