C~3Ⅰ系统综合评价

评述了兵器系统的评价现状，指出：运用生产阶段的评价规范于论证、研制阶段是不适宜的，评价的研讨、共识和规范化是亟待加强的过程。并给出了两种实用综合评价模型及它们在C~3I系统论证、研制阶段中的应用。     

如花绽放 中国军用飞机的研制全过程

中国航空工业经历半个世纪的不断努力和发展,航空科研的方法和手段也在经验积累中逐步提高和完善。中国军用飞机研制过程主要分为五个主要阶段,包括论证阶段、方案设计阶段、工程研制阶段、设计定型阶段和试生产(生产定型)阶段。论证阶段论证阶段是航空科研系统根据部队提出的技术要求和型号需要,或科研系统根据部队潜在的需要进行主动研究     

做好型号设计质量评价控制武器装备质量源头

型号设计阶段是装备质量形成的源头，质量评价是保证型号研制方案质量的重要手段。根据型号研制阶段设计质量评价新需求，应用现代产品质量理论及方法，阐述了型号设计质量评价的概念、特点、过程、方法体系及软件工具系统，为保证装备方案质量提供切实可行的技术途径，使装备质量持续改进成为可能。     

自行火炮系统动态效能建模与仿真研究

系统效能分析是装备论证研制阶段的重要工作。在分析自行火炮装备系统组成的基础上,依据可靠性、维修性数字仿真和作战模拟理论,建立了基于蒙特卡洛方法的系统动态效能仿真模型,实现了对抗条件下主战装备和保障装备系统的效能综合。并结合作战想定,应用语言编写仿真模型的计算机程序,进行了实例分析,结果验证了模型的可行性和有效性。该模型可为白行火炮装备系统的方案论证、工程研制、作战运用和维修保障等提供科学的决策依据。     

空空导弹系统可靠性指标设计方法探讨

本文概括地论述了在研制的论证阶段和方案阶段，空空导弹武器系统可靠性指标设计的原则和依据，讨论了可靠性指标的费用效能分析方法。     

改进风险矩阵及其在某型装备采办风险评价中的应用

为规避装备采办各阶段特别是研制阶段的风险,将改进风险矩阵用于某新型手榴弹采办的研制阶段风险评估中。从性能风险、费用风险和进度风险3个方面,对某新型手榴弹采办风险评价指标体系的建立进行论述。邀请风险评估专家小组进行该型号手榴弹采办研制阶段的风险评估,结合专家组给出的直接结果,计算出该阶段各种风险的风险影响序值、风险概率序值、Borda数,然后确定出Borda序值、风险等级尺度等信息,进而确定出该型号采办论证阶段的风险总水平、每种风险的风险贡献率,最终获得影响该型号装备研制的最大风险因素。     

引信全寿命周期与引信安全性管理初探

引信全寿命周期由战术技术指标确立，方案论证与确立，工程研制、生产、使用（含处理）等五个阶段组成。在产品承制的每一个阶段上，设置安全性控制点，有效地执行派定的任务是成功地识别、控制或消除引信安全性隐患的关键。在引信产品研制被允许进入下一个阶段前，清楚地理解除承制方提交的所有设计审查资料，有针对性地开展引信安全性分析、评估工作，并完成引信安全性的阶段审查报告，是军代表在引信全寿命周期每一个阶段实施安全     

引信全寿命周期与引信安全性管理初探

引信全寿命周期由战术技术指标确立，方案论证与确立，工程研制、生产、使用（含处理）等五个阶段组成。在产品承制的每一个阶段上，设置安全性控制点，有效地执行派定的任务，是成功地识别、控制或消除引信安全性隐患的关键。在引信产品研制被允许进入下一个阶段前，清楚地理解除承制方提交的所有设计审查资料，有针对性地开展引信安全性分析、评估工作，并完成引信安全性的阶段审查报告，是军代表在引信全寿命周期每一个阶段实施安全性管理的核心任务     

印度研制可重复使用运载器

目前，印度可重复使用运载器的研制工作正处于方案论证阶段，已经完成了技术验证机的结构设计和制造工艺研究。该验证机计划于两年后发射升空。     

装甲车辆的使用可用度

使用可用度是构成系统效能的重要因素之一,是系统可靠性、维修性和保障性的综合参数。由于和平时期装甲车辆的使用强较低,各项时间因素复杂,装甲车辆的使用可用度一直是装备型号工作中的难题。本文针对使用可用度的统计计算、指标论证、工程研制和试验与评价,进行了装甲车辆使用可用度研究。     

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.     

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.     

Stability of the Third Generation Intensifier under Illumination

The stability under illumination of transmission-mode GaAs photocathode sealed in the third generation intensifier is investigated by use of spectral response testing instruments. The variations of spectral response with the illumination times under weak and intense illumination are compared. The variations of photoemission performance parameters are also characterized. The results show that during initial several weak illuminations photocathode behaves no evident decay and a maximum sensitivity is achieved, while under intense illumination the sensitivity of photocathode begin to decrease largely at the first illumination. The calculated performance parameters show that the variation of surface escape probability with illumination times is a direct cause of instability of photocathode. It is also found that under intense illumination peak wavelength is moved towards short-wave and peak response is decreased, which shows that the ability of long-wave response of photocathode is decreased.     

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.     

Algorithm for Multi-laser-target Tracking Based on Clustering Fusion

Multi-laser-target tracking is an important subject in the field of signal processing of laser warners. A clustering method is applied to the measurement of laser warner, and the space-time fusion for measurements in the same cluster is accomplished. Real-time tracking of multi-laser-target and real-time picking of multi-laser-signal are introduced using data fusion of the measurements. A prototype device of the algorithm is built up. The results of experiments show that the algorithm is very effective.     

Robust Graded Sliding Mode Tracking Control for Low Speed Spinning Ballistic Missiles

The nonlinear dynamic model of spinning ballistic missiles is established during the first boosting phase of the missile. Based on the conventional backstepping sliding mode control and the assumption of a two time-scale separation of missile dynamics, a graded sliding mode controller is designed with two sub-sliding surfaces which have invariability to external disturbances and parameter perturbations, and a matrix which comprises three first order low pass filters is introduced to prevent ＂explosion of terms＂. Owing to the upper bounds of the uncertainties are difficult to obtain in advance, adaptive laws are introduced to estimate the values of the uncertainties in real-time. Eventually, the numerical simulation results given to show the proposed controller can ensure the steady flight of missiles.     

A Study on the Estimation of Aeroheating upon the Warhead Nose at Supersonic Speed

An expression for estimating the aeroheating on a warhead nose at different supersonic speeds is proposed by incorporating CFD （computational fluid dynamics） and the least-square method. Compared with the traditional estimation formula, the expression is more accurate, convenient and can be used in the optimized design of warheads. The error from the result obtained in the test of a ball cartridge flight is less than 3 %. It satisfies the engineering requirements.