Effect of microstructure on short pulse duration shock initiation of TATB and initial response mechanism

Micro-TATB particles with different sizes and 3D nanoporous TATB architectures with different specific surface areas were prepared through recrystallization to study short pulse duration shock initiation properties by electric gun technology. For micro-TATB, the initiation threshold significantly decreases with TATB average size ranging from 79.7 μm to 0.5 μm. For 3D nanoporous TATB architecture, the initiation threshold decreases and then increases with specific surface areas increased from 9.6 m²/g to 36.2 m²/g. The lowest initiation thresholds are obtained for the micro-TATB with average sizes of 1.3 μm and 0.5 μm, and 3D nanoporous TATB architecture with specific surface area of 22.4 m²/g. The shock initiation thresholds of micro-TATB and 3D nanoporous TATB architectures show significantly decreases with the porosity increased. The decomposition reaction and thermal conductivity properties were further investigated to understand the initial response mechanism. High porosity provides more collapse sites to generate high temperature for formation of hot spots. The low thermal conductivity and decomposition temperature could enhance the formation and ignition of the hot spots, and initial decomposition reaction of TATB. The effect of the decomposition temperature is higher than that of the thermal conductivity on the shock initiation properties. The enhanced decomposition reaction could promote energy release and transfer process from the ignition to the combustion. This work offers a new insight to understand the effects of microstructure on the shock initiation properties and the initial response mechanism of TATB.     

虚拟检测维修系统的设计与实现

结合实际装备维修工作的需求,开发了一套基于虚拟现实技术的具有一定通用性的虚拟维修训练系统。系统由界面层、应用层、对象层和技术支持层组成,运用OSG渲染创建逼真的场景,基于均匀网格和OBB树的混合碰撞检测算法解决碰撞问题,通过协同网络通信实现多人协作维修/检测操作。通过对某型装备手控台的虚拟维修训练系统的构建,证明系统能够快速开发相应的虚拟训练系统。训练过程中操作与场景变化实时同步,结果表明该系统能够有效提高操作人员的维修维护能力。     

基于HLA的海战场信息对抗仿真系统设计

海战场信息对抗仿真系统为海军信息作战理论与战法研究、信息作战装备的作战效果模拟提供了一种新的途径。在对体系对抗仿真的体系结构分析的基础上,给出了海战场信息对抗仿真系统的设计思想,提出了系统的功能和总体框架,并对其中的一些关键技术进行了分析和探讨。     

War,vagueness and hybrid war

It has frequently been observed in the literature on hybrid wars that there is a grey zone between peace and war, and that hybrid wars are conflicts which are not clear cases of war. In this paper, I attempt to illuminate this grey zone and the concept and nature of war from the philosophical discussions of vagueness and institutional facts. Vague terms are characterized by the fact that there is no non-arbitrary boundary between entities which lie in their extension, and entities which do not lie in their extension. I apply a theory of vagueness to notions such as “war” and “peace” and go on to suggest that the exact boundary for what counts as a war or not is arbitrary. However, the context in which the conflict occurs determines a range of possible locations for this boundary. The most important contextual parameter is in this respect how the parties to the conflict themselves conceptualize the conflict. I suggest that this can in various ways help us understand grey-zone conflicts.     

陆军合成营作战仿真组件化模型体系设计研究?

针对当前陆军合成营作战仿真模型缺乏整体设计、模型重用性差以及集成效率低的现状，从顶层设计入手，提出基于组件化建模方法的模型体系架构。该模型体系以组件为中心，以平台组件、装备组件、行为组件、辅助组件为重点，聚焦功能组件建模，可为构建良构的陆军合成营作战仿真模型，规范模型设计、开发、集成和运行，提高模型资源重用性，避免低水平重复建设提供先进的应用框架和技术支持。     

军事仿真训练系统体系架构改进研究

现有军事仿真训练系统多基于传统C／S架构进行体系设计，在大规模战术训练仿真部署时，存在并发访问能力弱、可靠性差等问题。通过对仿真系统的体系架构进行研究，结合云计算技术提出增加访问控制服务器、仿真数据共享服务器以及仿真引擎虚拟化等改进方式，并通过对比分析，总结了三种方式对仿真训练系统的可扩展性、并发访问性以及数据可靠性等方面能力优化和提升的异同，并提出仿真训练系统传统体系向云计算体系逐步过渡的思路。     

混合隔振系统中电磁作动器的优化设计

由于混合隔振系统中的电磁作动器对电磁力、体积重量、损耗等指标有着严格的限制,因此电磁作动器的优化设计显得十分重要。为此,提出了电磁作动器系统参数(包括几何尺寸参数和电参数)的优化设计方法,推导了电磁作动器总损耗与系统参数间的关系。通过有限元分析软件ANSYS中的优化设计模块,使用ANSYS参数化设计语言建立了在保证电磁力及体积限制条件下,以总损耗最小为目标函数的三维参数化分析模型,多次循环迭代求解后得到了较为优化的系统参数。仿真及实验结果表明:按照该方法设计的电磁作动器能够满足各项设计指标要求,且性能比其他参数下更为优化。     

美军信息系统互操作性研究

解释了军事信息系统互操作性的内涵,对美军信息系统互操作性研究现状如信息系统互操作性等级模型、美国国防部体系结构框架及国防信息基础设施总体规划等进行了详细阐述。进一步分析了美军发展军事信息系统互操作性的内容,为实现我军各信息系统的互操作性提供参考。