破片式战斗部引起的巡航导弹制导系统损伤研究

研究分析了破片式战斗部引起的巡航导弹制导系统损伤,根据巡航导弹制导系统的一般工作特性,给出了巡航导弹制导系统损伤评估等级,并以战斧式巡航导弹为研究参照的目标,用损伤树法对其关键部件进行了损伤分析,在损伤试验模型一般建立原则的基础上,拟定多层间隔靶板系统为制导系统的损伤等效靶,并最终探讨建立了一个初步的损伤准则.     

破片与冲击波耦合作用下巡航导弹发动机毁伤实验研究

为了提高我导弹对抗生存能力和我拦截弹药摧毁来袭导弹的毁伤概率,以巡航导弹发动机舱为研究对象进行了巡航导弹的易损性和毁伤效应研究.在建立巡航导弹发动机舱模拟等效靶的基础上,利用模拟战斗部对巡航导弹发动机舱模拟等效靶进行了冲击毁伤作用实验,研究了发动机舱在破片与冲击波耦合作用下的毁伤模式,分析了其毁伤机理,得到了其在破片与冲击波耦合作用下的毁伤判据.     

高能激光对巡航导弹毁伤效能评估与仿真

高能激光以其独特的优势,成为现代战争中对抗巡航导弹的理想武器。为有效评估高能激光对巡航导弹的毁伤效能,文中采用改进的ADC效能评估法建立高能激光对巡航导弹毁伤效能模型,并对其进行分析,重点对高能激光的毁伤能力进行了仿真,可以得出影响高能激光毁伤巡航导弹效能与各因素的关系。     

基于累积参数模型巡航导弹毁伤概率计算

累积参数模型、期望值点炸模型和随机点炸模型是目前用于目标易损性分析与毁伤评估的主要模型．基于平行网格射击线技术和蒙特卡洛方法，利用累积参数模型建立巡航导弹易损性分析仿真平台，进行动能弹丸打击下巡航导弹毁伤概率（Pk／h）研究．对巡航导弹毁伤概率随动能弹丸速度、打击方位角和高低角变化规律进行深入分析，为巡航导弹毁伤机理与终点效应研究提供重要参考．     

一种双模战斗部毁伤效能评估研究

介绍了一种新颖的杆条/破片双模战斗部双模实现方法和研究结果,对此开展毁伤效能评估方法研究。选取典型战斗机和巡航导弹进行了目标易损性分析,构建出目标等效模型及毁伤律模型。基于Monte Carlo方法,建立了杆条/破片双模战斗部毁伤概率计算模型,并编写出仿真计算程序,得到战斗部不同作用模式对两种目标的毁伤概率及其随脱靶量变化的规律。研究结果表明:飞机目标选用杆条模式较好,巡航导弹目标选用破片模式为优,这与双模战斗部的设计初衷吻合;建立的毁伤效能评估方法可以进行不同弹目交会条件、制导精度下的毁伤概率计算,为战斗部的实际应用提供技术支持。     

巡航导弹部件水平易损性仿真评估系统

完全利用实验对巡航导弹进行毁伤评估存在许多不足,文中基于射击线技术和Monte Carlo随机模拟方法,建立了部件水平巡航导弹易损性分析模型,对目标三维描述、杀伤场描述、弹目交汇处理、部件毁伤准则确定、关键部件及目标毁伤概率计算等问题进行了探讨.利用Visual C++/OpenGL平台开发了巡航导弹目标易损性仿真评估系统,并对破片战斗部打击下某巡航导弹目标的易损性进行了仿真评估,得到了命中弹体破片数的变化规律.研究结果为巡航导弹目标易损性分析与毁伤评估、反导战斗部设计提供了重要参考.     

目标毁伤等效靶概念探讨

文中研究了目标毁伤分析的相关基本概念。在此基础上讨论了目标毁伤等效的问题,给出了部件毁伤等效靶的定义,并证明了目标各部件毁伤等效靶的组合靶能够等效表示目标的毁伤,定义了目标毁伤等效靶。最后结合实例对目标毁伤等效靶的建立及应用进行了说明。     

炸点控制弹药毁伤效能研究

通过分析炸点控制弹药对空中目标的坐标毁伤率、弹药对目标的毁伤机理以及炸点位置的分布规律，建立了炸点控制弹药对空中目标的毁伤分析模型，并以毁伤巡航导弹为例，计算了35mm弹药的炸点距离、一次齐射弹药数量对毁伤效能的影响。     

巡航导弹攻防对抗策略研究

通过介绍巡航导弹性能特点及攻击策略,探讨了几种反导模式,并着重介绍了巡航导弹制导系统的对抗措施和途径。     

高速杆条对薄靶板切割毁伤影响因素分析

为研究杆条破片对薄靶板的切割毁伤特性,对杆条切割毁伤特性的影响因素进行了分析,建立了高速杆条对薄靶板切口长度的投影计算模型,模拟了典型入射条件下杆条对薄靶板的切割毁伤。分析指出杆条对薄靶板的切割毁伤特性除了受杆条和靶板的自身因素影响外,还受到杆条着靶速度、攻角、入射角及面角等入射条件的影响。当攻角大于15°时,投影计算结果与模拟计算结果差值在10%以内,投影计算模型可用于目标易损性分析。     

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.     

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.     

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.     

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.     

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.     

Influence of Installing Error on the Surface Shape Precision of the Axial Symmetry Aspheric Workpiece in Lapping

A method to calculate the surface shape error, which is caused by the installing error between the workpiece and the lapping tool in the process of form lapping, is proposed. The mathematical model which the installing translation error influences on the workpiece surface shape error is established. The changing rule of the error is simulated through the calculating example of the paraboloid workpiece. The results indicate that the surface shape error of the workpiece is increasing with the increase of the installing translation error, it is also increasing gradually along the center point of the curve surface to the edge, and the influence is severer to the curve surface with great curvature than that of the small curvature when the translation error is the same.