PC—1500计算机配置软磁盘机的研究与设计

本文研究并设计了一种新的接口电路,使 PC-1500计算机能够与软磁盘机配接、并能通过键盘编制注解文件。本系统使用的软磁盘格式与 IBM-PC 系列微机完全兼容。文中论述了接口电路及软件设计原理.     

An improved adaptive differential evolution algorithm for single unmanned aerial vehicle multitasking

Single unmanned aerial vehicle (UAV) multitasking plays an important role in multiple UAVs cooperative control, which is as well as the most complicated and hardest part. This paper establishes a three-dimensional topographical map, and an improved adaptive differential evolution (IADE) algorithm is proposed for single UAV multitasking. As an optimized problem, the efficiency of using standard differential evolution to obtain the global optimal solution is very low to avoid this problem. Therefore, the algorithm adopts the mutation factor and crossover factor into dynamic adaptive functions, which makes the crossover factor and variation factor can be adjusted with the number of population iteration and individual fitness value, letting the algorithm exploration and development more reasonable. The experimental results implicate that the IADE algorithm has better performance, higher convergence and efficiency to solve the multitasking problem compared with other algorithms.     

Chain damage effects of multi-spaced plates by reactive jet impact

Chain damage is a new phenomenon that occurs when a reactive jet impacts and penetrates multi-spaced plates.The reactive jet produces mechanical perforations on the spaced plates by its kinetic energy(KE),and then results in unusual chain rupturing effects and excessive structural damage on the spaced plates by its deflagration reaction.In the present study,the chain damage behavior is initially demonstrated by experiments.The reactive liners,composed of 26 wt％Al and 74 wt％PTFE,are fabricated through a pressing and sintering process.Three reactive liner thicknesses of 0.08 CD,0.10 CD and 0.12 CD(charge diameter)are chosen to carry out the chain damage experiments.The results show a chain rupturing phenomenon caused by reactive jet.The constant reaction delay time and the different penetration velocities of reactive jets from liners with different thicknesses result in the variation of the deflagration position,which consequently determines the number of ruptured plates behind the armor.Then,the finite-element code AUTODYN-3D has been used to simulate the kinetic energy only-induced rupturing effects on plates,based on the mechanism of behind armor debris(BAD).The significant discrepancies between simulations and experiments indicate that one enhanced damage mechanism,the behind armor blast(BAB),has acted on the ruptured plates.Finally,a theoretical model is used to consider the BAB-induced enhancement,and the analysis shows that the rupturing area on aluminum plates depends strongly upon the KE only-induced pre-perforations,the mass of reactive materials,and the thickness of plates.     

双37Ⅱ~＋型舰炮数据采集系统的研究与实现

文中较详尽地叙述了双３７Ⅱ＋舰炮数据采集系统实验电路的研究与实现过程,主要说明如何对较复杂的舰炮随动系统进行数据采集,同时也为其它武器系统的过程控制提供了一定的经验。     

MIS结构生成器—MISSG的设计与实现

MISSG是一个能支持“快速原型法”的通用生成工具,它不但能快速生成MIS结构的可执行原型,并且还具有“边执行——边维护”的生成方式,为MIS的生成和维护提供了一种全新的实用方法。本文阐述了MISSG的特点、组成结构和实现方法。     

基于深浅知识的混合诊断模型

针对大型电子设备的诊断问题,提出一种基于深、浅知识的混合诊断模型,给出了诊断知识的组织模型,论述了混合诊断模型的建立,并给出了完整的推理控制算法。基于这种模型,研制了ＰＬＴＳ平台罗经自动测试系统．     

一种新型火炮自动机构的运动方程

基础构件转动的机构是火炮上的一种新机构。根据达朗贝尔原理和虚位移原理,本文推导了这种新型机构在工作构件影响下的运动微分方程,可以用来解决这类机构的运动学和动力学问题。     

表格/文本图像歪斜度检测方法

在表格处理和光符识别软件中．歪斜图像校正是一项重要的预处理技术。针对文本和表格图像,本文提出了一种基于线条检测模型的高精度、快速的歪斜图像检测方法。     

平面B—样条曲线的拐点定理

利用插入节点的算法,本文研究了Ｂ—样条曲线的形状,得到了Ｂ—样条曲线拐点的一个定理。该定理描述了当控制多边形只有一个拐向点时Ｂ—样条曲线的拐点、尖点和二重点的关系。此项研究对于工程应用中的ＣＡＤ有较实际的指导作用。     

基于蚁群算法的火力分配寻优方法研究

火力分配的优化是最大限度的发挥火力单位效能,达到最大毁伤效果的基础和前提,将蚁群算法应用于火力分配的优化.研究了蚁群算法用于火力分配寻优的相关条件,给出了火力分配寻优的模型和算法.最后,结合一个应用实例,说明了蚁群算法用于解决火力分配问题有很好的应用价值.