装备维修保障的多目标优化模型研究

通过对装备维修保障问题进行分析,针对目前研究的目标单一,就修复后的加权作战时间和装备尽可能短的延误双重目标加以研究,建立了维修保障的多目标优化模型,并给出了模型的求解算法,从而弥补了这些不足,使维修保障更加合理。最后,算例表明模型的求解方法简单,计算时间较短,是一种便于实现的好算法。     

一种防空导弹全任务维修训练模拟器设计

针对当前部队缺乏装备维修训练手段的问题,基于"虚实结合"思想设计了一种防空导弹武器系统全任务维修训练模拟器。采用半实物仿真技术构建了基于以太网的多PC分布式体系结构;采用虚拟现实技术构建了虚拟维修训练环境;基于"虚拟维修中测量使用真实信号"理念采用"虚拟维修计算机+任意波形发生器"实现了战车测试信号产生;提出了"维修训练融入操作训练"的训练模式,实现了操作训练和维修训练的有效无缝连接。通过在教学实践中使用证明,该系统结构合理,可靠性高,扩展性好,并对其他复杂装备的维修训练模拟器研制有指导意义。     

Optimal production and maintenance policy for imperfect production systems

A joint optimization of the production run length and preventive maintenance (PM) policy is studied for a deteriorating production system where the in‐control period follows a general probability distribution with non‐decreasing failure rate. In the literature, the sufficient conditions for the optimality of the equal‐interval PM schedule is explored to derive an optimal production run length and an optimal number of PM actions. Nevertheless, an exhaustive search may arise. In this study, based on the assumption that the conditions for the optimality of the equal‐interval PM schedule hold, we derive some structural properties for the optimal production/PM policy, which increases the efficiency of the solution procedure. These analyses have implications for the practical application of the production/PM model to be more available in practice. A numerical example of gamma shift distribution with non‐decreasing failure rates is used to illustrate the solution procedure, leading to some insight into the management process. © 2005 Wiley Periodicals, Inc. Naval Research Logistics, 2006     

装备器材多级库存决策优化模型研究

研究了装备器材管理的成本构成特点,认为装备器材多极库存系统可简化为n级系列体系结构。建立了装备器材多级库存优化控制模型,通过模型求解和相应实例分析,表明了装备器材多级库存优化控制方法的可行性和有效性。     

Optimal joint preventive maintenance and production policies

We study joint preventive maintenance (PM) and production policies for an unreliable production‐inventory system in which maintenance/repair times are non‐negligible and stochastic. A joint policy decides (a) whether or not to perform PM and (b) if PM is not performed, then how much to produce. We consider a discrete‐time system, formulating the problem as a Markov decision process (MDP) model. The focus of the work is on the structural properties of optimal joint policies, given the system state comprised of the system's age and the inventory level. Although our analysis indicates that the structure of optimal joint policies is very complex in general, we are able to characterize several properties regarding PM and production, including optimal production/maintenance actions under backlogging and high inventory levels, and conditions under which the PM portion of the joint policy has a control‐limit structure. In further special cases, such as when PM set‐up costs are negligible compared to PM times, we are able to establish some additional structural properties. © 2005 Wiley Periodicals, Inc. Naval Research Logistics, 2005.     

基于可拓工程方法的维修保障系统效能评估研究

分析了维修保障系统效能的影响因素,应用可拓工程方法建立了维修保障系统效能多指标参数的物元可拓评估模型,以定量的结果对维修保障系统效能进行了评估分级,并与层次分析法和突变评价法的结果进行了比较,结论基本一致.为维修保障系统效能评估问题寻求出一种新的方法,其评估结果可为决策提供定量依据.     

战时装备维修器材分配方法研究

根据参战部队任务及其性质,装备的损坏率及其分布,总部、部队库存现有装备维修器材等条件,结合战时装备维修器材的储备模式,给出了战时装备维修器材的分配程序、模型和评估方法。针对分配中总部资源不足的重点和难点,引入带权重保障程度作为逐个分配的依据,应用示例说明了分配程序的适用性及灵敏性。     

分布式网络攻击检测系统（DIDS）

介绍了网络攻击检测系统 (IDS)的运作机理 ,分析了IDS的优缺点。针对传统IDS的问题提出了分布式IDS(DIDS)的概念 ,比较了DIDS的设计目标与目前一些IDS产品的性能。最后从功能模块设计、攻击特征的获取和更新、提高攻击行为的检测和反应速度、攻击行为关联性分析和更加主动的反应策略五个方面详细阐述了DIDS的具体设计思路 ,为进一步完善网络攻击检测系统的性能提供了可行的解决方案     

机械设备视情维修决策系统的研究与开发

从技术的角度讨论了为机械设备开发维修决策支持系统的必要性、可行性及系统技术关键的解决策略,以及系统开发中对人力资源的需求,为开发这样的系统提供技术与管理上的支持.     

虚拟维修技术在军械保障训练中的应用

首先介绍了当前装备维修训练中存在的问题和虚拟现实技术及其运用在装备维修训练上所产生的巨大效益 ,然后给出了虚拟维修本身的特点及应满足的要求 ,最后给出了三维建模的规则和人机工程学的实施途径、方法及“沉浸”感的几种实现方法