多点起爆网络装药及性能

为了研究多点起爆网络装药对爆轰波输出同步性及起爆能力的影响,以超细奥克托今(HMX)为主体炸药,硝化棉(NC)为粘结剂,(HMX/NC=95∶5)为沟槽传爆药装药,设计了一种3点同步刚性起爆网络,理论分析和测定了起爆网络在不同装药密度下的同步误差,对比试验了沟槽压装装药技术,对传爆药进行了表征,测试了起爆网络相关的爆轰性能,优化了起爆网络装药结构。结果表明,提高起爆网络装药密度能够增加起爆可靠性和降低同步误差,装药密度从1.17 g·cm~(-3)增加到1.47 g·cm~(-3),起爆网络的同步误差从300 ns降低到150 ns。以JH-2压装药柱作为输出端装药,超细HMX/NC传爆药作为沟槽装药,采用沟槽压装装药技术,可以使同步起爆网络的爆轰波输出同步性约为100 ns。     

一种高输出威力的同步起爆网络研究

为可靠起爆定向战斗部，设计了一种刚性基板和柔性导爆索结合的“一入三出”新型起爆网络，输入端采用半导体桥雷管与JO-11C药柱紧密接触，在刚性基板沟槽内放置的银制导爆索连接输入端JO-11C药柱和输出药柱。经过仿真模拟对比毁伤效果，设计了传爆药柱直径分别为10,20,50 mm的三级输出传爆序列；理论分析起爆网络的同步性，计算得出起爆网络同步性误差为253 ns，同步性试验表明起爆网络的3路时间误差最大为290 ns；起爆能力测试表明三点同步起爆网络的输出威力满足定向战斗部的使用要求。     

环锥形传爆药的多点同步起爆网络的设计

提出了将多点同步起爆网络用于起爆新型传爆药装药结构,以提高传爆药起爆能力的方法;研究了“一入四出”、“一入八出”同步起爆网络的设计方法,并分析了其同步时间表达式及同步时间的影响因素。分析表明：网络的机械加工精度、装药密度的一致性和爆轰波拐角偏差是主要影响因素。     

环形传爆药柱多点起爆数值模拟及威力测试

为了提高传爆药柱起爆钝感弹药的能力,根据冲击波汇聚技术原理设计了环形传爆药装药结构.配合环形装药的尺寸,根据小尺寸装药爆轰理论设计了4点和8点同步起爆网络.用ANSYS/LY-DYNA软件分析起爆点个数对环形传爆药柱输出波形的影响,并进行了试验验证.结果表明,利用多点同步起爆网络起爆环形传爆药柱能有效提高传爆药柱的输出威力,在保证较小同步时间偏差的情况下,增加起爆点个数有利于提高环形传爆药柱的输出.     

多点起爆网络结构参数设计及其同步性误差分析

设计了一种8点环形同步起爆网络,网络结构采用典型的板式结构,传爆炸药为新型纳米颗粒炸药(黑索今(RDX)/奥克托今(HMX)=45%/45%,10%的含能粘结剂,炸药颗粒直径小于100 nm),试验和仿真确定了起爆网络的关键结构参数为:刻槽宽度为1.2 mm,基板厚度为3.8 mm。理论分析起爆网络的同步性,发现所设计的同步起爆网络八个输出端的同步性误差最大值不超过152.2 ns,实验验证表明,所设计的起爆网络同步起爆精度约为170 ns,满足聚能装药多模式战斗部形成外形良好的侵彻体的要求,实弹检验表明,刚性8点同步起爆网络可以形成成型良好,横向偏移较小的射流战斗部,满足聚能战斗部的使用要求。     

传爆药起爆效果的影响因素研究

采用侧向钢凹法考察传爆药柱的起爆效果，通过改变聚奥－X传爆药柱的药量，得出了在一定条件下聚奥－X最佳起爆效果的药量。初步讨论了传爆药技的形状对起爆效果的影响。     

曲面多点同步起爆网络研制

为满足不同曲面同步起爆的需要,设计了一种刚性和柔性相结合的多点同步起爆网络。对多点起爆同步性进行了理论分析,并对起爆可靠性和多点起爆同步性进行了测试,测试结果表明,12点起爆同步性标准偏差小于0.6μs。为提高同步性,提出了冗余设计方法,并结合试验数据进行了分析,分析结果表明,冗余设计可提高同步性标准偏差到0.3μs。     

刚性面同步起爆网络设计及同步时间分析

本文研究了刚性面同步起爆网络的一般结构、特征参数及设计方法,并用误差分析的方法对多点爆轰波输出时间同步性进行了分析,得到了同步起爆网络的作用时间及多点同步起爆的时间偏差表达式,给出了提高起爆同步性的技术途径。     

微小型传爆序列装药研究

通过一种采用MEMS技术的微小型引信的传爆序列结构,研究了不同许用传爆药剂在微小型传爆序列中的起爆感度、最佳装药密度。研究结果表明：JO-9C（超细化）的起爆感度较高,传爆序列最佳装药密度为起爆端1.75g/cm^3、输出端1.80g/cm^3,试验结果对小型化传爆序列的设计具有一定的参考意义。     

微通道挤注药剂配方与装药工艺研究

针对起爆逻辑网络,探索采用奥克托今（HMX）基塑性粘结炸药作挤注型传爆药,运用分段挤压注入沟槽的工艺方式对直线微通道装药。通过正交试验研究了HMX粒度、Viton A含量、增塑剂种类及用量对装药与传爆性能的影响。结果表明,实验塑性炸药挤注工艺用于小尺寸传爆沟槽装药可行,装药致密、均匀;细化HMX含量为97%的传爆药不适于挤注装药;粘结剂低于3%时,挤注药体成型变差;增塑剂用C2与C3的塑性炸药表面更平滑,柔韧性更强;达到可传爆密度的前提下,HMX中小粒度颗粒维持相当含量是沟槽传爆药可靠传爆的必要条件;E级HMX 47.5%、细化HMX 47.5%、Viton A 5%、增塑剂C3 2%（外加）为最优挤注型传爆药装药配方,装药平均密度1.44g/cm3,1mm×1mm沟槽内平均爆速达6959m/s,直线传爆临界直径0.5mm.     

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.