兵工自动化
第四期
武器装备自动化

指挥控制系统的信息安全问题(解放军理工大学 刘建永 等)
Problem of Information Security in C3I System
指挥控制系统的信息安全包括保密通信、信息认证、入侵检测和病毒防范。系统易受攻击的环节是局域网与通信链路,需采取链路加密和端到端加密措施。报文信息的鉴别认证可采用差错控制码、报文鉴别码与数字签名进行。采用反常检测统计和基于规则的检测技术进行入侵检测。病毒防范可采用反病毒软件、防火墙、类属解密和数字免疫系统等新型反病毒措施。
Information security of the C3I system includes communication security, information authentication, intrusion detection and virus defence. Parts easy to attack in the system are LAN and communication link, which need to take link encrypting and point-to-point encrypting. Message information may be authenticated with error-control code, message authenticated code and digital signature. Statistical abnormality examining and examining based on rule are generally accepted in intrusion detection module. Virus defence includes antivirus software, fireproof, generic decryption and digital immunity system.

导弹阵地目标威胁等级的量化(国防科技大学 侯锋)
Quantizing Method for Grade of Target Threat for Missile Position
导弹阵地目标威胁等级的量化,通过定义目标类型空间、参量空间及其矩阵,建立未确知测度模型。定义参量未确知测度矩阵,确定各测度函数。建立目标威胁等级测度函数规则,定义评价矩阵得出多参量未确知测度。再建立判断矩阵,确定状态参量权重系数。按最大值进行归一化处理,获得目标威胁等级。
Quantizing method for grade of target threat for missile position, target type space, quantizing parameters space and it’s matrix were defined, and the unascertained measurement model was constructed. The measurement function was established by defining single parameter unascertained measurement matrix. The rules of measurement function for grade of target threat were established, evaluate matrix was defined to obtain multi-parameters unascertained measurement. Then, the judging matrix was established to weight coefficients of status quantizing parameters. At last, the grade of target threat was obtained by unitary processing according to max.

统计误差法对舰空导弹拦截能力的分析(海军工程大学 邓强 等)
Analyze on Intercepting Ability of Ship-to-Air Missile with Method of Statistical Errors采用统计误差法分析舰空导弹拦截能力,先建立拦截模型,用统计学方法分析跟踪、数据传输、校正误差等对舰空导弹导引头截获目标概率的影响。计算出同一方向杀伤区内拦截目标的次数,评估单舰作战时舰空导弹的拦截能力。给出了误差与导引头截获概率的关系分析数学模型。
Intercepting ability of ship-to-air missile is analyzed with method of statistical errors, first, intercepting model of ship-to-air missile was established, track, data transport and revising error was analyzed with statistical method to be an influence on guide-nob of ship-to-air missile intercepts and captures target probability. At the same direction, times of intercepting target in a kill and wound zone were calculated, intercepting ability of ship-to-air missile was evaluated when single warship did battle. In the end, the mathematical model for relational analysis of statistical errors and target probability captured by guide-nob was given out.

自动调平系统在防空火炮中的应用(中南大学 谭青 等)
Application of Automatic Controlling System for Adjusting Level in Antiaircraft Artillery
火炮自动调平控制系统由PLC、2倾角传感器和1套液压执行机构组成。包括火炮状态转换控制和射击时关闭调平、射击结束恢复调平控制。自动调平过程中,传感器分别检测炮床X、Y轴方向水平状态,与误差设定值比较并将结果传给PLC。PLC根据预置程序输出调平信号,分别控制各电液换向阀,经液压执行机构改变炮床水平倾角消除水平误差,实现自动调平。
Automatic controlling system for adjusting level in antiaircraft artillery is composed of PLC, 2 pieces of slope sensor of and a set of performing machine. Including the two controlling processes of changing state of the artillery and adjusting level before and after shooting. In the course of adjusting level, the two sensors check the states of level of X and Y directions of artillery-bed respectively, and compare to the values of error set in advance, then send the results to PLC. PLC will put the controlling signals out according to the programs designed in advance to control the electronic-liquid valves to exchange. The errors of artillery-bed level will disappear caused by the changes of performing hydraulic pressure machine. So it will come to adjusting level automatically.

积分分离PID控制在某防空导弹中的应用(军械工程学院 李旭渊 等)
Application of Integral Separated PID Control in Antiaircraft Missile
某型防空导弹采用改进的数字分时段积分分离PID控制。根据目标和导弹偏差及其变化控制积分系数,若比例项、积分项和微分项符号相同而偏差较大时积分项不工作,其符号不同时积分项工作。仿真表明此控制方法对于机动目标能够使偏差的振幅减小,提高命中率。
Improved digital time-segmented PID control separated by integral action coefficient was adopted in antiaircraft missile. Integral coefficient was controlled according to windage and change of target and missile. The integral item doesn’t work when the signs of proportion, difference and integration are the same and the value of deviation is very large. If the signs are different, integral item works. The result of simulation shows that the amplitude of deviation can be reduced with the method, and improve the hit rate.

先进制造技术

用遗传算法求解柔性作业车间调度问题(华中科技大学 陈皓 等)
Solving Scheduling Problem of Flexible Job in Shop by Genetic Algorithm
采用遗传基因编码算法求解柔性作业车间调度问题,对工序进行排序并分配给各机床。设待加工件N个,工件i经过J道工序在M台机床加工完成,建立数学模型。基因编码主串表示调度路径,副串表示调度次序信息。在主串中引入交叉算子,主、副串以不同的概率发生变异算子,并随机交换其中两位。仿真结果表明该算法求解完成所有工序的时间最短。
The scheduling problem of flexible job in shop is solved with genetic algorithm, job queue is allocated to specified machines according to working procedure. Suppose N pieces of machined workpiece, J sequences of workpiece I are completed in M machines, mathematical model is established. Scheduling route is denoted by genic code host string, scheduling sequence is denoted by assistant string. Aceoss operator was adhibited in host string, and variation operators were brought by host string and assistant string as well as different probability, and exchange 2 bits operator among operators according to situation. Simulation result shows machining time is fewest about accomplished all the working procedure using the method.

遗传算法在SPLP问题上的应用(华中科技大学 金煌 等)
Application of Genetic Algorithm in Simple Plant Location Problems
采用遗传算法求解SPLP优化问题,用染色体编码表示仓库的开关状态,随机生成初始群体。定义适应度函数估算适应度。选择优良个体随机配对,设定交叉点使配对个体彼此交换部分信息。随机改变个体基因链,经选择、交叉、变异运算得到下一代群体,再把优良个体复制到新的群体中。并用爬山算法优化新群体,使群体迅速逼近最优。
The simple plant location problems are resolved with genetic algorithm, first the state of the warehouse was expressed by chromosome coding, early colony was generated randomly. Define the fitness function to estimate fitness. The choiceness unit was chose to make a pair randomly, fix the crossing. Through chosing, crossing and mutation calculation, the next generation was gained, then copy the choiceness unit to the new generation. The new generation was optimized with local search algorithm to make it avoid plunge in local optimize solution.

光子传输扩散方程求解的有限元方法(沈阳鹿森润滑技术有限责任公司 徐礼富 等)
A Finite Element Solution of Photon Diffuse Equation
依据光子传输的扩散性,用有限元法导出光子传输扩散偏微分方程的数值解。该法采用Dirichlet边界条件,用光子扩散方程描述光子迁移运动,用有限元简化扩散方程,展开介质参数。通过求解式扩散方程得到任一时刻和径向位置的光通量。并以生物介质二
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