药剂型稀土燃烧剂使用技术研究

为研究药剂型稀土燃烧剂在不同弹种上的适用性,测试了其燃烧性能、安全性能和药柱抗压强度等使用性能参数,研究了该燃烧剂的使用方式和使用条件.试验结果表明:该燃烧剂燃烧温度可达1 431℃,50g剂量持续燃烧时间4.5min,抗压强度大于14MPa;可与稠化三乙基铝燃烧剂复合装填于各种材质的纵火弹药,分散均匀,点燃率超过90%.     

一种复合燃烧剂的设计研究

采用“燃烧序列”原理设计了一种复合燃烧剂，研究其静态和动态条件下点燃特性及其燃烧性能。试验结果表明，该复合燃烧剂点燃性能好，燃烧温度可达3298℃，持续燃烧13～14min，能够形成较好的高温纵火效果，可作为高效燃烧弹装药使用。     

高分子树脂对活性金属准合金燃烧剂性能的影响

将高分子树脂与燃烧热值高的活性金属粉末锆、镁、钛、铝等按照一定的比例混合,发生聚合反应形成活性金属燃烧剂.研究了高分子树脂对燃烧剂的燃烧性能、安全性能、力学性能的影响,对高分子树脂含量一定的准合金燃烧剂,研究了不同固化工艺对燃烧剂力学性能的影响.结果表明,通过高分子树脂与主体成分金属的优化设计,可以得到燃烧温度高、燃烧时间长、安全性好、力学性能优异、对目标物有较强燃烧和引燃效果的活性金属燃烧剂.     

复合稀土燃烧剂与瞬态温度场的测定研究

本文阐述了燃烧剂燃烧时发出高热与高温,用以烧毁各种木质结构建筑、仓库、燃料库、军事目标、易燃千草或丛林等。而目前常用的烟火型燃烧剂虽具有燃烧温度高的优点,但却存在火种少、燃烧时间偏短的缺点;粘性石油燃烧剂或粘性石油混合烟火型燃烧剂虽然火焰面积大、燃烧时间较长,但燃烧温度低,故影响了纵火效果。作者弥补了目前各种常用燃烧剂的缺陷。现制成的复合稀土燃烧剂燃烧时具有燃烧温度高,火焰面积大,火种多,火种持续时间长的特点。 燃烧剂的燃烧温度、火焰面积与燃烧持续时间是影响对目标纵火效果的几个重要参数,尤其燃烧温度更为重要,而目前常用的接触式或非接触式测温仪,都存在某些缺点。要测出瞬态火焰温度与温度分布则难于满足要求。故作者初步应用彩色温度自动记录仪(热成象系统)测定燃烧剂的瞬态火焰温度与温度分布,现已取得良好结果,文中附有火焰彩色温度热象图,对于影响测试结果的因素还需进行深入研究。     

稀土合金燃烧剂研究及应用

叙述了稀土合金燃烧剂的配方研究,性能评价方法和结果以及应用.该燃烧剂具有燃烧温度高、热值大、安定性能好和发火点适中等优点,除能较好引燃各类油料外,还具有较好的贯穿能力.     

DBJ10式12.7mm多功能弹

DBJ10式12.7mm多功能弹是一种高精度反器材弹药,该弹同时具备穿甲、燃烧、破片杀伤多种终点效能,远距离精度高,不含炸药,是我国枪弹领域的一次技术创新. 该弹全弹由弹头、弹壳、发射药和底火等组成.弹头主要由弹心、尼龙风帽、燃烧剂和底托组成.其中,弹心采用现代穿甲弹常用的钨合金材料,能保证弹头的穿甲能力;头部为尼龙风帽,内含燃烧剂;弹壳为制式12.7×108mm涂漆钢弹壳;底火采用伯尔丹式无锈蚀底火;发射药采用内弹道燃烧稳定的单基发射药.     

弹性丁腈橡胶药剂在燃烧弹中的应用

对弹性丁腈橡胶药剂作为一种混合燃烧物进行了研究。主要是硫化橡胶药经过黄磷、二硫化碳溶液的浸泡处理，使之达到足够的吸收含量，该药剂作为炮弹、火箭弹燃烧剂装药具有良好的燃烧效果。     

燃烧毁伤技术研究进展

燃烧毁伤技术是含能材料与毁伤领域的重要研究方向.主要综述了燃烧毁伤技术的研究进展,从燃烧剂配方设计和应用、燃烧热辐射毁伤理论与技术、燃烧毁伤评估技术三个方面进行论述,指出目前存在燃烧剂燃烧毁伤效能不足、热辐射模型中参数表征过程单一、燃烧毁伤评估方法不全面等问题.认为高密度、高热值燃烧材料、燃烧剂装药构效关系、以火球温度为代表的关键模型参数的测试技术、热辐射毁伤模型的修正和优化、毁伤场中多种毁伤元耦合作用下的热辐射毁伤效应的精准评估方法是未来的研究重点.     

瞬态分光辐射仪在烟火药剂燃烧性能参数测量中的应用

简要地介绍了瞬态分光辐射仪的结构及测量原理。用该仪器测量了军用黑药、绿光剂、黄光剂、燃烧剂、曳光剂等几种药燃烧过程的相对辐射功能分布、色度参数和发光强度等主要物理参数。     

澳大利亚试验超音速燃烧冲压喷气发动机

10月 30日 ,澳大利亚昆士兰大学开发的超音速燃烧冲压喷气发动机 Hy Shot验证机在伍默拉发射场进行第 1次飞行试验时 ,由于飞行过程中火箭发生故障导致试验失败 ,但发动机未受损伤。该项计划负责人艾伦·波尔表示 ,尽管如此 ,他们仍旧获得了很有价值的试验数据 ,并计划在一周后重新进行试验。传统的运载火箭发动机工作时必须提前加注燃烧剂和氧化剂 ,而超音速燃烧冲压喷气发动机是一种吸气式发动机 ,工作前它只需加注燃烧剂 (液氢 ) ,而工作时则从大气中吸收空气作为氧化剂。此外 ,与传统的火箭发动机相比 ,超音速燃烧冲压喷气发动机还具有…     

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.     

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.     

Overview of Anti-tank Mines

First the different anti-tank mines laying possibilities are shortly summarized： hand emplaced, with mine layers, ground or helicopter relatively topographical well defined, and with cluster systems of projectiles, rockets and aircraft dispensers. Then examples of the three generations of anti-tank mines are presented：Ⅰ generation： detonating only beneath the track; Ⅱ generation： detonating beneath the track and belly; Ⅲ generation： mines with off-route actions. Weight and cost comparisons are strongly favoring the off-route Ⅲ-generation mines.     

A Finite Element Analysis on Static Strength of a Complex Section

A static finite element analysis （FEA） of an impulsive controller section is presented. The boundary condition and a part of the loads are applied. Considering the grades of the stress around the holes being large, the dense grids are adjusted accordingly. Four cases with different loads are compared, thus the influences of different loads on the section are analyzed. Numerical results show that the maximum stress of the section is lower than the strength limit of the material, and the section will not be broken with the static loads.     

Discussion on Mechanism of Breech-Blow Caused by Propellant Charge

From the view point of launch safety caused by fracture of propellant charge, this paper points out that the safety criterion of pressure wave is inadequate to evaluate the launch safety of propellant charge based on the initial negative differential pressure and sensitivity tests. Generally, the maximum barrel pressure does not depend upon the intensity of pressure wave correspondingly. The pressure wave intensity can not describe the fracture degree of propellant charge in chamber and reflect the mechanical environment of propellant charge fracturing exactly and wholly. The evaluation criterion for launch safety of propellant charge should be built on the basis of depicting the fracture degree of propellant bed.     

Experimental Studies of Toxicity on HNIW and Its Intermediates

The polycyclic nitramine hexanitrohexaazaisowurtane（HNIW） is a compound of high energy density. HNIW can replace 1, 3, 5-trinitro-1, 3, 5-triazacyclohexane（RDX） or HMX, hut its toxicity is unknown. In this paper, HNIW, hexabenzylhexaazaisowurtzitane （HBIW）, tetraacetyldibenzulhexaazaisowurtzitane （TADBIW）, tetraacetyldiformylhexaazaisowurtzitane（TADFIW） and tetraacetylhexaazaisowurtzitane（TAIW）, which are intermediates of the synthesis of the HNIW, were selected as the tested objects in acute toxicity test, acute eye stimulation test and skin irritation test according to the standards of ＂chemical product testing method-401 ： acute oral toxicity test＂, ＂chemical product testing means-405： acute eye irritation/corrosion test＂ and ＂chemical product testing means-404： acute dermal irritation/corrosion test＂ of National Circumstance Protect Bureau. The results show that all of the five objects have no toxicity, no stimulation to eye and skin under the tested conditions.     

Dynamic Simulation for Missile Erection System

In order to study the dynamic characteristics of the missile erection system, it can be considered as a rigid-flexible coupling multi-body system. Firstly, the actual system is abstracted as an equal and simplified one and then the forces applied to it are analyzed. Secondly, the rigid-flexible coupling dynamic simulation for erection system is accomplished by use of the system simulation software, for example Pro/E, ADAMS, ANSYS, MATLAB/Simulink, etc. Finally, having the aid of simulation results, the kinetic and dynamic characteristics of the flexible bodies in erection system are analyzed.The simulation considering the erection system as a rigid-flexible coupling system can provide valuable results to the research of its kinetic, dynamic and vibrational characteristics.