新一代半导体桥起爆器

半导体是一项控制技术（enabling technology)。它不仅改变了起爆器的性能，也冲击了整个武器起爆系统的结构。以半导体桥为基本组件的新型起爆器已经进入市场。与常规热桥丝起爆器相比，它们在定时性和对杂散能的安全性方面有了极大的改进。本文介绍了Ensign-Bickford公司研发的新一代半导体桥起爆器，它们在体积，重量以及制造成本方面有了极大的改进，在战术导弹，灵巧弹药，卫星和运载火箭方面的应用前景很看好。     

一种基于DSP的半导体桥起爆电路的设计

针对半导体桥起爆器的特点,设计了1套起爆电路,通过采用滤波、双状态控制、冗余设计等手段,使该电路具有高可靠性、安全性与电磁兼容性;相对于模拟电路控制方式,该电路具备数字控制功能,具备与上位机通讯方便、控制方式灵活等特点,试验表明其能够可靠起爆半导体桥起爆器.     

引信微型高频高压点火电源的研究

通过分析脉宽调制型(PWM)专用集成电路TL494和带有续流线圈的单端正激式逆变器的工作原理,设计了用于引信点火的高频高压电源系统电路和元件参数,并给出了试验样机的部分实验结果。将脉宽调制型高频高压开关电源用于冲击片雷管爆炸箔起爆器系统中,安全性好,可靠性高,多点起爆同时性好,适用于直列式爆炸序列,使弹药引爆系统的设计大为简化,提高了弹药的费效比。     

云爆弹靶场试验中的远距离多点延迟起爆系统设计

为了配合云爆弹靶场试验,采用总线通信技术设计了远距离多点延迟起爆系统,进行了起爆器二次起爆延迟时间、多点同步起爆同步性以及起爆器输出能量测试,并在靶场进行了云爆弹两次起爆验证试验.试验结果表明:该起爆系统能够准确传输起爆指令,实现云爆弹两次起爆,并满足延迟时间要求;同时,可以安全可靠地完成二次多点起爆,其多点同步性也满...     

多点起爆技术及应用研究进展

综述了爆炸网络多点起爆技术和直列式多点起爆技术的发展,介绍了爆炸网络多点起爆技术的多点同步爆炸网络和多点逻辑爆炸网络的应用现状,分析了两者的优势及不足;对比了直列式多点起爆技术的国内外研究现状,讨论了多点起爆点数、起爆方位参数对多点起爆系统性能的影响,指出多点起爆技术未来研究方向为：多点起爆精确控制方法研究,多点起爆装置模块化与集成化研究,低成本多点起爆技术研究,复杂环境下多点起爆系统安全性与可靠性研究。     

I-Kon电子起爆系统

介绍了由ORICA公司研制和生产的I-Kon电子起爆系统,该起爆系统由电子雷管及其专用编程器、起爆器,以及爆破设计软件构成。分析了该起爆系统的安全可靠性能的实现技术手段,并展望了电子起爆系统的应用前景。     

微机电灵巧起爆器研究

介绍了微机电起爆器的构成原理,分析了国内外研究现状,总结了微机电起爆器研究涉及的关键技术。结果表明,微机电灵巧雷管通过微机电技术、微纳米含能材料、微结构爆轰学的技术集成,实现了火工品部件微型化、结构集成化、功能灵巧化,易于形成通用的标准化起爆模块。     

激光起爆系统销毁危险弹药试验研究

为解决传统炸毁法销毁危险弹药危险性高、可靠性低的问题,引进脉冲激光起爆技术,设计了新型激光起爆系统.利用激光引爆方式,使聚能装药起爆器爆炸产生的金属射流穿透待处理弹丸并引爆弹丸装药从而实现危险弹药销毁.对5种不同壁厚和装药的典型弹丸进行了引爆试验,结果试验弹丸100%可靠引爆.试验表明激光起爆系统使用过程安全性和可靠性高,操作方便,是一种良好的危险弹药销毁方法,具有很大的推广应用前景.     

一种高安全性钝感电起爆器的设计

针对某钝感电起爆器1.5A/2.25W5min不发火的钝感要求和通6A/20ms直流电流可靠发火的要求,通过分析影响电起爆器安全性、发火可靠性及作用时间的影响因素,进行了相关设计及试验。研究表明:合理的散热结构与桥路设计,以及钝感耐高温药剂设计可满足高安全性与可靠发火要求;点火药剂中金属锆粉粒度小于2μm、粘合剂氟橡胶含量为0.5%、压药压力为85MPa时,发火时间精度最佳。该设计为电起爆器类火工品的钝感化研究提供一种新的思路。     

远程多路现场注册遥控起爆系统的设计

以水中兵器爆炸威力测量试验为应用背景,介绍了一种远程多路现场注册遥控起爆系统的设计及实现,对系统的工作原理及关键技术的解决进行了详细描述;经系统联调试验表明,该系统具有可靠性高、安全性高、扩展性强等优点,可应用于舰艇抗冲击试验及水中兵器静态爆炸等试验中的无线起爆。     

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.     

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.     

Experimental Research on Output Performances of Giant Magnetostrictive Actuator

The paper introduces the performances of magnetostrictive actuators and its applications, discusses the design methods for the structure and internal magnetic circuit of a giant magnetostrictive actuator, and makes tests on the output displacement and force characteristics for an actuator using homemade magnetostrictive material. The experimental result shows that the actuator has satisfactory output precisions and ranges in transient and stable states, and can be used in lowfrequency vibration control system of precise equipment.     

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.