装备保障性验证研究现状

装备保障性是装备的设计特性和计划的保障资源满足平时战备和战时使用要求的能力,是与作战性能以及可靠性、维修性同等重要的装备战术技术性能。保障性验证是实现装备保障性目标的一种有效的监督和控制手段,是持续不断地提升装备保障性水平的重要驱动。从保障性验证管理工作、保障性参数体系、保障性验证技术、验证相关标准四个方面,分析和总结了美军的装备保障性验证研究的进展。     

导弹武器装备备件需求量分析与计算方法

导弹武器装备综合保障性的重要参数包括战备完好性及备件保障率.根据备件寿命的分布类型,即可确定备件的计算模型.通过定义保障概率、装备中某零部件所需备件数量、装备中某零部件的机用件数、装备中某零部件失效率等参数,从而确定备件的需求数量.     

装备综合保障中的若干关键技术

装备综合保障包含保障性需求和保障性分析、设计和装备综合保障体系分析,及保障方案仿真和优化等问题.故在全寿命周期的架构下,分析装备论证评估、装备设计、试验验证、生产部署、退役报废等各个阶段装备综合保障的效能,研究各个阶段与装备综合保障相关的关键技术,为下一步装备综合保障体系的构建提供支持.     

海军导弹武器系统保障性参数体系研究

分析了海军导弹武器系统的组成与特点,描述了装备保障性及其参数的涵义,重点探讨了海军导弹武器系统保障性参数体系的构成和确定原则。     

保障性分析在装备寿命周期过程中的应用

分析了保障性概念及保障性与可靠性、维修性之间的关系,提出了保障性工程的基本定义、目标、任务和基本框架,给出了用于定性和定量分析的3类保障性参数,阐述了保障性分析在寿命周期过程中的五大项工程,研究了装备设计和保障资源的保障性分析过程与方法,构建了装备寿命周期不同阶段的保障性模型以检验保障性设计参数的合理性。     

鱼雷保障性参数体系

为提高装备综合保障工作水平,建立鱼雷保障性参数体系。在讨论保障性参数体系分类的基础上,根据参数选取原则,结合鱼雷武器装备实际情况,由上至下选择参数建立较为完整的鱼雷保障性参数体系,可用于确定相应指标。该参数体系的建立为鱼雷保障性要求论证奠定了基础。     

装备使用保障性评价参数体系

针对目前使用保障性度量参数未对使用保障性度量参数进行系统研究的问题,建立一套定性与定量相结合的军用飞机使用保障性参数体系。以军用飞机为主要研究对象,概括归纳装备使用保障性的内涵,运用系统工程理论,同时对装备系统使用保障性综合要求、装备本身的使用保障特性要求、装备保障系统的使用保障特性3个方面进行研究,给出了定量参数的解析算法,并以舰载机为例给出了案例分析。分析结果证明:该体系作为综合保障工程的必要补充,为装备研制阶段并行开展使用保障系统的设计提供了技术支持和理论依据。     

基于灰色关联的地空导弹武器系统的使用保障能力研究

文中以地空导弹装备的使用保障能力为研究对象.建立了使用保障能力模型及保障能力参数值确定方法,基于灰色关联分析的思想和技术对影响使用保障性能的四个关键指标参数进行了评估,以实现对地空导弹类装备的使用保障性能进行科学的控制与管理.     

自行火炮保障性参数分析与指标确定方法

分析了保障性参数的分析方法和相关指标,并通过某型自行火炮为例,对其保障性参数指标进行确定,验证了该指标和分析方法的可行性。     

装备保障性工程中的软件保障性问题

软件保障性是整个装备保障性工程的一个重要组成部分。首先对软件保障性的相关概念进行界定,给出了软件保障性的要素构成模型。在此基础上,分析了软件保障流程和实现软件保障性的主要工作内容,然后说明了如何确定软件保障性参数指标体系,最后讨论了集成的软件保障环境的建立。     

区域防空任务保障性参数研究

以区域防空任务作战想定为背景,将区域防空体系的作战任务划分为预警侦察、战斗机拦截、导弹拦截和高炮拦截4个阶段.针对各阶段任务,给出参战的装备作战单元类型,建立各阶段任务的保障性参数,包括反映平时训练的使用度和反映战时作战能力的任务完成率、战斗准备时间、再次出动率等.     

Nitrosation and Nitration of Tetraacetyldibenzylhexaazaisowurtzitane

Tetraacetyldibenzylhitane (TADBIW) was subjected to debenzylation by nitrosating with inorganic materials available commercially to synthesize tetraacetyldinitrosohexaazaisowurtzitane (TADNSIW). TADNSIW was purified, and its structure was determined by FTIR, 1H NMR, MS and element analysis. The debenzylation reaction of TADBIW gave quantitative benzaldehyde as a by-product. This indicates that the reaction produces an imine cation as an intermediate. Hexanitrohexaazaisowurtzitane (HNIW) was prepared from unpurified TADNSIW with the yield over 96.0 % and the purity more than 98.0 %. And the mechanism of the reaction from TADNSIW to HNIW is proposed to be oxidation of nitroso and nitration of acetyl on the molecule of TADNSIW, This reaction system involved is simple, and the reaction can complete within a short time and under mild conditions. The product can be easily to separate and the waste disposed readily.     

A Robust Algorithm for Watermarking 2D Vector Maps with Low Shape-Distortions

The technique of watermarking has been introduced into 2D vector maps for many potential applications such as protecting the copyright of important GIS （geographical information system） data and tracing the data source of military maps. In most previous works, although the validity of the map data could be preserved during the embedding procedure, the shape-distortions of the map elements are usually neglected which would tend to degrade the invisibility of the watermarking schemes. A shape-preserving algorithm for watermarking 2D vector maps is presented in this paper. A 1D distance sequence extracted from the original map is adopted as the cover data instead of 2D coordinates. A watermark bit is represented by changing the distributions of the cover data. The embedding procedure induces lower shape-distortions than in former works. Experimental results indicate better invisibility of the proposed scheme, as well as its robustness to certain attacks such as map simplification, interpolation, additive noise and most geometric transforms.     

Open Rule-setting System Applied to Conceptual Design of Engines

Open rule-setting method advanced in this paper concentrates on providing designers of engines with a convenient way to express their design innovations and develop the expected prototypes in the early CAD stage, and constitute effective models for the following analysis process of CAE and CAPP. The problems arisen in the process of conceptual design with the traditional experience-based development method are analyzed. Based on those analyses, open rule-setting method is presented and some associated technical problems are discussed. The functional framework of open rule-setting system was built as software engineering methods. The speciality of the engine product as a kind of complex product and the requirement of the engine product based on its structural particularity to rule-setting system are considered carefully. A demonstration is supplied to illustrate how the open rule-setting method enhances the efficiency and quality of the engine conceptual design.     

Research on Linux Network Device Driver

By analyzing the working principle of Linux network device driver, discussing the Linux network driver structure and its key technologies, the general network driver structure and its design methodologies in Linux system are summarized. Through modifying the network device driver of Linux device driver 3rd version snull, c and improving the COW technology, the Zero-Copy technology in Linux （kernel version 2.6.11 ） is implemented. In the end, the success test tells us that the thorough analysis of network device driver is the foundation of many applications, and it also provides a certain improvement to a lot of real applications, even to military application development.     

Method for Measuring Velocity of Warhead Fragments Based on Photoelectric Detection

For measuring velocity and impacting position of single fragment of warhead, a non-contact measuring method is proposed, in which a six-light-screen array, a position indicator, a multi-channel chronograph and a computer are used.The principle of measurement is described. The key device of the system is a light screen array sensor which consists of six light screens allocated with certain geometrical parameters. When the fragment flies through the light screen array, the time of passing through each of the screens is recorded by the multi-channel chronograph. According to the time data and the geometrical parameters of the array, the velocity vector and the location of the fragment can be calculated immediately. The presented method can be used to locate the fragment and to measure the real velocity on its flying direction. It can also be used to measure the velocity of a fragment swarm after the system is engineered further.     

数码电子雷管中影响点火头性能因素分析

阐述了数码电子雷管中,点火药剂细结晶三硝基间苯二酚铅（LTNR）的制备工艺;从点火药剂的种类、加入黏合剂的质量分数、桥丝直径、点火头的电阻值、防潮漆的蘸涂等方面对点火头性能的影响因素进行了探讨;通过震动试验、并联起爆试验、延期精度检测与考核,试验结果表明：一次性合成的细结晶LTNR是制造数码电子雷管点火头较为理想的点火药剂,按技术要求生产的点火头性能指标能够满足行业标准要求。     

Improvement and Experiment of the Reamer in Vibra Cutter Against Wave Edge of Titanium Sheet Alloy Parts

By analyzing the influencing factors of part quality making of sheet alloy of titanium by vibra cutter, the shape of upper reamer is set as cylinder and wedge-shaped form, and the lower reamer as plain and hemicycle form, and its main structural parameters are defined as well. Then it is validated further that such improved vibra cutter reamer can be used to process curve-edged parts of titanium alloy sheet. The experimental result shows that the titanium alloy sheet parts processed by above equipment have no sharpen angles for convex parts and evident crevasse of concave-edged part. In summary, such improvement can eliminate the free-waved edge and improve the manufacture quality of titanium alloy sheet parts greatly.     

Experimental Study on the Small Flyer Initiating Behavior of Fine-grained Explosives

The initiating behavior of fine-grained explosives by small flyer is studied. The diameter of small flyer in this device is 1 ram. The test results indicate that the granularity of explosives has great effect on its flyer initiating sensitivity.The flyer initiating sensitivity of the fine-grained explosives is higher and the critical initiating energy is lower than that of common explosives. For common explosive, the flyer initiating sensitivity increases as the density is reduced. But for the fine-grained explosive, the test results are exactly opposite.