双枝模糊评判在舰炮性能评估中的应用

针对舰炮武器性能指标，运用双枝模糊决策方法对舰炮武器性能进行综合评估。该方法提出了新的论域[-1，1]使评估更能符合人的思维逻辑，能够客观的对舰炮性能进行评估，通过对多中舰炮的具体参数指标进评估，得出各种舰炮的性能优劣的排序，具体的数学模型仿真表明，对舰炮武器性能的评估是行之有效的。     

基于双波段红外辐射信息的红外机动目标跟踪算法

利用双波段IRST系统测到的目标双波段红外辐射信息,推导出目标的伪距离量测信息,使得单站IRST系统变为可观测系统;在此基础上,构建了伪量测方程,采用改进的"当前"统计模型和基于最小偏度单形采样策略的UKF算法,提出了一种基于双波段红外辐射信息的IRST机动目标跟踪算法。理论分析与仿真结果表明,该算法能够有效地跟踪机动目标,具有良好的实际应用价值。     

一类军事竞争系统的非线性分析

应用非线性系统的定性理论方法,对一类军事竞争系统进行了定性分析,研究了系统平衡点的性态,证明了系统在全平面不存在闭轨线。     

CacheFI:基于架构级故障注入的片上缓存容错评估工具

体系架构级缓存容错技术被认为是应对较高的永久位故障率的有效手段,但目前缓存容错机制的体系架构级评估工具较少。针对这个问题,提出CacheFI,即基于Simics的缓存故障注入工具,采用故障生成和注入分离的设计,故障生成是随机分布、模式和时序三个方面的结合,故障注入则考虑了故障可重现性和模块化的需要。在全系统模拟器Simics上,基于15个选自SPEC CPU2000的测试程序,利用CacheFI对Buddy和MAEP等典型的体系架构级缓存容错机制进行评估,展现了其弱点和典型的片上缓存容错机制存在的问题。     

基于矩阵运算的光学零件磁流变加工的驻留时间算法

提出了一种光学零件磁流变加工的驻留时间计算方法.该算法以矩阵运算为基础,首先确定工件上各个控制节点的高度余量,并将磁流变抛光模对各控制节点的材料去除能力体现到去除矩阵中,然后利用非负最小二乘法求解驻留时间向量.采用该算法在自行研制的磁流变抛光机床上进行抛光实验,经过2次迭代加工后,有效口径为145mm的球面镜P-V值达到40.5nm(约为λ/15),RMS值达到5nm(约为λ/125),表面粗糙度Ra值达到0.57nm.     

磁流变抛光螺旋扫描方式的算法与实现

研究基于螺旋扫描路径的光学镜面磁流变抛光的算法与实现.该算法将去除函数矩阵转化成驻留时间解算的线性方程组的系数矩阵,并利用其为稀疏矩阵的特点来进行快速迭代计算,然后将求得的驻留时间分配到螺旋扫描路径上以求得整个路径上速度变化,从而控制磁流变抛光机床直线轴和转轴作插补运动.利用该算法在自研的KDMRF-200磁流变抛光机床上对-K9玻璃平面镜进行了两次迭代加工,面形均方根误差由初始的0.128λ加工到0.022λ,验证了该算法的正确性和实用性.     

某两栖装甲装备液压系统非介入式原位检测方法

为解决传统的介入式测量方法拆装困难、影响系统的动态特性、无法适应武器装备现场快速抢修需要的问题，根据液压系统的特点，针对表征系统状态的主要参量——流量、泄漏量和污染度，提出了非介入式原位检测方法，实现了对装甲装备实时检测的目的，有助于故障的快速定位和排除。并以某两柄装甲装备为例，说明了非介入式原位检测技术的可行性和实用性。     

Balancing a one‐way corridor capacity and safety‐oriented reliability: A stochastic optimization approach for metro train timetabling

In urban rail transit systems of large cities, the headway and following distance of successive trains have been compressed as much as possible to enhance the corridor capacity to satisfy extremely high passenger demand during peak hours. To prevent train collisions and ensure the safety of trains, a safe following distance of trains must be maintained. However, this requirement is subject to a series of complex factors, such as the uncertain train braking performance, train communication delay, and driver reaction time. In this paper, we propose a unified mathematical framework to analyze the safety‐oriented reliability of metro train timetables with different corridor capacities, that is, the train traffic density, and determine the most reliable train timetable for metro lines in an uncertain environment. By employing a space‐time network representation in the formulations, the reliability‐based train timetabling problem is formulated as a nonlinear stochastic programming model, in which we use 0‐1 variables to denote the time‐dependent velocity and position of all involved trains. Several reformulation techniques are developed to obtain an equivalent mixed integer programming model with quadratic constraints (MIQCP) that can be solved to optimality by some commercial solvers. To improve the computational efficiency of the MIQCP model, we develop a dual decomposition solution framework that decomposes the primal problem into several sets of subproblems by dualizing the coupling constraints across different samples. An exact dynamic programming combined with search space reduction strategies is also developed to solve the exact optimal solutions of these subproblems. Two sets of numerical experiments, which involve a relatively small‐scale case and a real‐world instance based on the operation data of the Beijing subway Changping Line are implemented to verify the effectiveness of the proposed approaches.     

加强软件密集型装备综合保障能力的思考

随着软件密集型装备的大量使用,软件密集型装备的地位越来越突出。本文阐述了加强软件密集型装备综合保障能力建设的重要性,对国内外软件密集型装备综合保障的研究情况进行了比较分析,并提出推进我军软件密集型装备综合保障能力建设应该把握的问题。     

基于AHP和云重心方法的装甲兵指挥信息系统效能评估

针对装甲机械化部队指挥信息系统作战效能评估问题,运用云理论进行了探索。首先,对云重心理论的步骤进行了阐述,结合层次分析法,最后用加权偏离度来衡量系统与理想状态的偏离度,将结果用Matlab三维图形对装甲机械化部队指挥信息系统的作战效能进行描述,图形较直观的反应了其效能问题。此方法简单易行,可操作性强,为装甲机械化部队指挥信息系统评估提供了一种较好的途径。