基于复杂网络的维修保障力量体系建模方法

针对传统的层级式维修保障力量体系在维修保障过程中暴露出的缺陷,从维修保障力量体系与复杂网络的相似性角度出发,提出用复杂网络理论来研究维修保障力量体系。在对维修保障力量活动过程进行网络化抽象的基础上,建立了维修保障力量网络的拓扑模型,提出了描述维修保障力量网络的特征量。以师维修保障力量体系作为研究对象建立了网络拓扑模型,并对该网络结构作了适当改进。通过一系列对比发现改进后的网络更有利于维修保障,这为维修保障力量体系建设提供了一种新思路和新方法。     

基于MDFT框架的海上能源通道航线动态决策建模与仿真

针对常规海上航线决策没有考虑决策选择过程的问题,引入多选择决策场理论（ MDFT）,构建了海上能源通道航线动态决策模型。基于信息完备、信息不确定和特殊情况等三种情景想定,进行了海上能源通道航线规划决策及其实验仿真。结果表明,决策过程受时间压力和信息质量的制约,时间压力会制约决策质量,同时还可能引起“偏好逆转”现象,信息不确定也会导致确定性决策。该模型不仅综合考虑了海上能源通道航线选择时需关注的各类要素,且模型参数可动态调整,进而能合理模拟真实的海上状况和决策过程。     

基于模糊聚类的保障装备模块化设计

针对陆军各兵种配备的专用保障装备过多、互用性差、型号规格杂、利用率低等问题,基于模块化设计理念,采用模糊聚类方法,在功能分析的基础上将保障装备划分为基本模块、通用保障功能模块和专用保障功能模块。基本模块通过与各种通用保障功能模块和专用保障功能模块组合,可形成系列保障装备族,满足保障装备型谱要求和不同保障需求,很好地解决了保障装备型号规格杂,不同兵种的保障装备间关联少、互用性差的难题,实现了保障资源的优化组合。最后,以某型履带式装甲抢修车的模块化设计为例,验证了研究思路和方法的可行性。     

某新型榴弹引信加速寿命试验设计

通过对影响某新型榴弹引信长储失效的主要环境因素（温度和湿度）分析,得出其寿命服从威布尔分布,双环境应力下满足阿伦尼斯模型。用恒定应力加速寿命试验方法计算出双环境应力下威布尔分布的过渡参数、形状参数、尺寸参数等值,从而估算出某新型榴弹引信长储失效规律。     

软件可靠性数学仿真测试平台设计与研制

针对火控软件的特点和要求,研制出面向软件可靠性验证的数学仿真测试平台,并根据典型的火控程序,有效地完成了分析与测试工作.测试系统界面友好,测试结果达到设计要求.     

减小两栖车辆水上行驶阻力的方案探讨

针对两栖车辆水上行驶阻力的特点,重点研究了形状阻力和兴波阻力对水上行驶速度的影响,提出了相应的措施和方案,并对其可行性和优缺点进行了分析.     

Transverse relaxation characteristic and stress relaxation model considering molecular chains of HTPB coating based on pre-strained thermal aging

In order to accurately describe the transverse relaxation characteristic and stress relaxation modulus of HTPB coating during pre-strain thermal aging process, a one month thermal aging test was carried out at 70 C with pre-strain of 0％, 3％, 6％ and 9％, respectively. The low-field 1H NMR and stress relaxation modulus tests were carried out for HTPB coating at different aging stages. The stress relaxation model considering the molecular chains was proposed according to the changes of crosslinking chain and dangling chain of HTPB coating during pre-strain aging. The results showed that with the increase of aging time, the decay rate of transverse relaxation curve became faster, the transverse relaxation time decreased, the value of combined parameter qMrl increased, the proportion of crosslinking chain decreased, while the proportion of dangling chain increased. Moreover, the stress relaxation modulus increased, the crosslinking network structure of HTPB coating became denser and the degree of cross-linking increased. At the initial aging stage, the pre-strain will destroy the crosslinking network structure of HTPB coating to a certain extent. With the increase of aging time, the effect of pre-strain will gradually weaken and the influence of aging on materials will gradually increase. The correlations between the stress relaxation model considering the molecular chains and the test results were more than 0.9950, which can accurately describe the stress relaxation modulus of HTPB coating during the pre-strain thermal aging process.     

Visual-attention gabor filter based online multi-armored target tracking

The multi-armored target tracking (MATT) plays a crucial role in coordinated tracking and strike. The occlusion and insertion among targets and target scale variation is the key problems in MATT. Most state-of-the-art multi-object tracking (MOT) works adopt the tracking-by-detection strategy, which rely on compute-intensive sliding window or anchoring scheme in detection module and neglect the target scale variation in tracking module. In this work, we proposed a more efficient and effective spatial-temporal attention scheme to track multi-armored target in the ground battlefield. By simulating the structure of the retina, a novel visual-attention Gabor filter branch is proposed to enhance detection. By introducing temporal information, some online learned target-specific Convolutional Neural Networks (CNNs) are adopted to address occlusion. More importantly, we built a MOT dataset for armored targets, called Armored Target Tracking dataset (ATTD), based on which several comparable experiments with state-of-the-art methods are conducted. Experimental results show that the proposed method achieves outstanding tracking performance and meets the actual application requirements.     

面向多状态节点的移动WSNs的区域覆盖可靠性分析

监测区域的覆盖要求和向信宿传输数据的可靠性是多状态节点的无线传感网络(Wireless Sensor Net-works,WSNs)应用的关键.为了量化覆盖要求和数据传输的可靠性,提出区域覆盖-可靠(Area Coverage Reliability,ACR)指标.ACR指标结合WSN可靠、区域覆盖、能耗、信宿的移动、...     

作战试验样本量的通用化估算方法

作为维持国防科技可持续发展的基本动力,国防采办包含大量的验证和确认环节.其中,最重要的是作战试验.它以模拟实战的考察方式,预测被试武器装备在未来战场的适用性和预定作战任务的完成情况,并据此决策是否批量采购这些产品.由于作战试验耗资巨大,不当选择样本量将造成试验资源的严重浪费.归纳总结了作战试验最常见的统计检验,推导了作...