对超声速反舰导弹命中概率的分析

通过与亚声速反舰导弹的比较 ,对超声速反舰导弹捕捉概率、选择概率、自导概率、突防概率进行了分析。     

反舰导弹攻击水面舰艇末端进入方向的选择研究

讨论了反舰导弹攻击水面舰艇选择进入方向时需要考虑的因素,研究了水面舰艇运动时的综合散布误差,探讨了反舰导弹的目标捕捉概率。最后通过仿真计算,分析了反舰导弹末段进入方向与目标捕捉概率的关系,可为作战决策提供一定依据。     

反舰导弹齐射及其应用分析

从提高反舰导弹对目标的射击效果的角度,阐述了反舰导弹齐射的意义,即导弹齐射可以提高导弹武器系统的作战反应时间,提高导弹的突防概率、对大目标的选择概率、对目标的毁伤概率等．分析了反航导弹齐射的组织的相关因素和应注意的几个问题．     

基于目标位置误差圆分布的反舰导弹捕捉概率计算模型

在把影响反舰导弹捕捉概率的主要误差综合为目标指示精度和侧向偏移两类误差的基础上,区别于传统方法,把目标机动范围、目标指示精度误差作为圆分布来处理,利用解析方法,建立了不同条件下反舰导弹捕捉概率的计算模型,对高亚声速反舰导弹的捕捉概率进行了计算.结果表明,两类误差对捕捉概率有明显的影响.按照捕捉概率不小于0.99的标准,得到了反舰导弹搜索角范围、目标指示精度误差、侧向偏移误差的要求,对反舰导弹的参数设计和确定有参考价值.     

反舰导弹突防能力研究与策略分析

随着水面舰艇综合防御能力的提高,反舰导弹突防日趋困难.针对该问题,通过分析反舰导弹的突防概率,建立了突防概率模型.分析了反舰导弹突防概率与其主要影响因素的关系,并提出提高反舰导弹突防能力的策略.     

反舰导弹突防能力研究与策略分析

随着水面舰艇综合防御能力的提高，反舰导弹突防日趋困难。针对该问题，通过分析反舰导弹的突防概率，建立了突防概率模型。分析了反舰导弹突防概率与其主要影响因素的关系。并提出提高反舰导弹突防能力的策略。     

掠海飞行高度对反舰导弹突防能力的影响

掠海飞行是反舰导弹常用的突防手段,降低掠海飞行高度在增大反舰导弹隐蔽性的同时也会降低反舰导弹的生存能力;针对掠海飞行高度对反舰导弹隐蔽性和生存能力的影响,根据反舰导弹的突防过程,仿真计算了反舰导弹对舰空导弹和小口径火炮的突防概率以及反舰导弹的生存概率,最后给出了反舰导弹采用不同掠海飞行高度在三种海况下的突防概率;对比分析仿真结果,得到了有用的结论。     

确定反舰导弹末制导雷达最佳开机距离的模型研究

反舰导弹对远程拦截导弹的突防过程中采用了大空域机动弹道和“海豚飞“两种突防模式,在穿透近程拦截导弹防御时采用“蛇行“机动或新型的随机机动突防模式,还采用隐身技术来提高突防概率.缩短电磁暴露时间是目前容易被忽略的一个方面,而确定反舰导弹末制导雷达最佳开机距离,就是缩短电磁暴露时间的有效又切实可行的方法.从分析末制导雷达必须满足的捕捉概率入手,建立了确定反舰导弹末制导雷达最佳开机距离的模型,并通过M atlab进行实例计算,得到相应的结论.     

反舰导弹螺旋机动对舰空导弹的突防能力仿真

为增强反舰导弹的机动突防能力,根据反舰导弹与舰空导弹的对抗过程,构建了反舰导弹螺旋机动对舰空导弹武器系统的突防模型。通过研究脱靶量的提取方法,给出了舰空导弹对反舰导弹的遭遇拦截判据,对反舰导弹螺旋机动突防概率进行仿真计算。仿真结果表明,通过优化组合弹道可以选择合适的螺旋机动方案,对于反舰导弹突防能力的提高效果显著。     

机动目标对反舰导弹捕捉概率的影响

对机动目标的打击能力是衡量武器系统效能的一项重要指标。通过分析导弹捕捉概率的计算模型,研究了机动目标对反舰导弹捕捉概率的影响,计算了目标航速及航向变化下导弹的捕捉概率值,为全面检验反舰导弹武器系统性能提供了依据。     

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.