作战分队武器系统的作战效能

战斗分队是未来联合作战中系统对抗的基本单元,以仿生学原理和系统工程理论为指导,建立了分队武器系统作战效能指标体系,并运用层次分析法建立了相应评估模型.最后以两组装甲步兵分队为例,分别评估了其在进攻(对峙)和防御中的作战效能,验证了该指标体系和评估模型的科学性和实用性.为指导员进行科学决策提供了理论依据.     

Research on the intermediate phase of 40CrMnSiB steel shell under different heat treatments

In this study, 40CrMnSiB steel cylindrical shells were tempered at 350, 500 and 600 ℃ to study the effect of tempering temperature on the dynamic process of expansion and fracture of the metal shell. A mid-explosion recovery experiment for the metal cylinder under internal explosive loading was designed, and the wreckage of the casings at the intermediate phase was obtained. The effects of different tempering temperatures on the macroscopic and microscopic fracture characteristics of 40CrMnSiB steel were studied. The influence of tempering temperatures on the fracture characteristic parameters of the recovered wreckage were measured and analyzed, including the circumferential divide size, the thick-ness and the number of the circumferential divisions. The results show that as the tempering temper-ature was increased from 350 to 600 ℃, at first, the degree of fragmentation and the fracture characteristic parameters of the recovered wreckage changed significantly and then became essentially consistent. Scanning electron microscopy analysis revealed flow-like structure characteristics caused by adiabatic shear on different fracture surfaces. At the detonation initiation end of the casing, fracturing was formed by tearing along the crack, which existed a distance from the initiation end and propagated along the axis direction. In contrast, the fracturing near the middle position consists of a plurality of radial shear fracture units. The amount of alloy carbide that was precipitated during the tempering process increased continuously with tempering temperature, leading to an increasing number of spherical carbide particles scattered around the fracture surface.     

基于EWB的数字电路仿真实验教学系统

本文介绍利用ElectronicsWorkbench(简称EWB)专业电路设计软件,建立数字电路仿真实验教学系统的方法,以此作为数字电路实验教学的重要补充,符合"以虚代实"、"以软代硬"的当代实验技术的发展潮流。     

序列近似优化方法

随着工程优化中仿真模型精度和计算时间的不断提高,常规的智能优化方法难以在可接受的计算代价中得到最优解。序列近似优化方法通过将近似模型技术引入优化过程,并采用不断更新采样点的方法来指导寻优,在基于计算耗时模型的优化中得到了越来越广泛的应用。通过论述序列近似优化方法的若干关键技术及其发展现状,可有效指导其在工程优化中的应用,并给出了序列近似优化方法可能的改进方法及发展趋势。     

从作战实际规划攻击型潜艇战斗系统

首先简述潜艇兵力的使命任务和作战特点 ,然后从作战的角度分析了攻击型潜艇战斗系统与海军战役系统的关系 ,提出了潜艇战斗系统的组成 ,探讨了潜艇战斗系统的功能及其动态特性。     

Applying Lanchester's linear law to model the Ardennes campaign

In modern warfare, many believe the decisive factor in winning a battle is seizing the right moment to shift from defense to attack, or vice versa. This paper attempts to bring that perspective to Lanchester's differential equations of warfare, and continues the application of Lanchester's linear law to the analysis of the World War II battle of Ardennes, as reported in earlier issues of Naval Research Logistics by Bracken and by Fricker. A new variable, shift time, accounting for the timing of the shift between defense and attack is explicitly included in our version of the model, and it helps obtain improved goodness of fit to historical data. © 2001 John Wiley & Sons, Inc. Naval Research Logistics 48:653–661, 2001     

浅谈武警士官教育中的“任务驱动式”教学

“任务驱动式”教学是根据士官学员的特殊性及武警部队的声像专业需求，着眼于培养学员应用操作能力，使学员处于秽取参与的学习氛围。在科学发展观的指寻下，充分利用士官学员自身长处，重视实践，采取多样化的考核模式，最终实现学员综合素质全面提高。     

大学物理实验课程教学改革与实践

根据本校大学物理实验课程教学的实际情况，结合对大学物理实验教学的实践与认识，论述了从实验内容、教学方法、考核方式、实验室建设等方面进行教学改革的具体措施和方法，以提高学生的思维能力和创新能力。     

轻集料钢筋混凝土梁受弯性能试验研究

轻集料混凝土应用于港口工程是一个待研究的课题.通过对4根轻集料钢筋混凝土梁和2根普通混凝土梁进行的抗弯对比试验,研究了轻集料钢筋混凝土粱的抗弯力学性能.结果表明,轻集料钢筋混凝土梁在承受正常荷载时,其力学性能与普通混凝土梁相比无明显差异;在破坏时脆性较同等级普通混凝土粱略大,延性略差.但考虑到轻集料混凝土的优点,在实际工程中可代替普通混凝土受弯构件工作.     

面向对象的战略战役指挥训练模拟系统数据建模

大型的战略战役指挥训练模拟系统需要内容复杂、数量庞大的数据作为支撑,而结构清晰、容易理解的数据模型是系统成功开发和应用的前提。采用面向对象的基本方法,给出了系统数据建模的概念定义并采用UM L表示法进行了建模方法分析,最后讨论了OO数据模型在系统工程化的数据准备以及运行时和事后分析等应用中所具有的特点。