尖点突变模型对单通道火力打击问题的研究

分析单通道火力打击的作战过程,在此基础上,运用系统学中的系统突变理论,通过对打击问题的分析,建立基于尖点突变的数学模型,提出避免系统发生突变的条件,为进一步研究此类火力打击问题提供理论参考。     

海军航空兵机动转场弹药装备调运模型

海军航空兵机动转场时弹药装备的运输方式是长线运输、整体搬运,这种搬家式的转移效果差,造成诸多不良后果.提高转场效率的一个有效措施是就近调配,通过将弹药物资调配抽象为带有时间、成本和损失度等约束条下的多种物资运输问题,建立转场物资调配和运输模型,经验证,使用该模型可以优化载具的调配和物资运输方式,建立飞机转场,弹药装备就近调配的机动保障的新模式,实现快速应急反应.     

网络化GPS干扰体系作战效能评估

以GPS为代表的导航系统已经成为现代武器平台精确打击的重要信息支援基础,电子信息系统的对抗越来越严重地影响着打赢信息化战争的成败.电子干扰装备作为导航系统等电子信息系统的软杀伤武器,其效能发挥的重要作用愈显突出.随着作战形式的体系化,以网络化的电子对抗体系优势抗击来袭武器平台,实现以网络为中心的作战,成为不可逆转的发展趋势.结合一种网络化GPS干扰系统,着重研究了网络化电子干扰体系作战效能评估的问题,从网络化GPS干扰体系的组成结构出发,分析了体系对抗优于传统独立及分布式干扰的特点和优势,建立了一套网络化GPS干扰体系作战效能评估指标,探讨了网络化GPS干扰体系作战效能评估方法,为改进完善电子对抗体系建设、提高电子对抗力量战斗力提供研究参考.     

导弹目标识别的最小贝叶斯风险分类器

在贝叶斯决策理论的基础上,通过划分目标特性空间的方法,推导了目标分类问题的总风险表达式.并根据导弹目标识别的特点,建立了导弹目标识别的最小贝叶斯风险模型,给出了基于风险分析的导弹目标识别的具体实现方法.最后,依据导弹目标的实际情况给出了仿真参数并进行了仿真试验,试验结果证明了本方法的有效性.     

钢制油罐腐蚀因素综合研究

提出了油罐腐蚀因素的综合研究方法,研究了钢制油罐主要腐蚀因素。首先根据腐蚀特征,找出钢制油罐的5个特征腐蚀部位;其次根据文献,深入讨论影响其腐蚀的大气、土壤、存储介质和随机因素,得到56个具体腐蚀因素;然后针对油罐底板上表面,考虑腐蚀机理和腐蚀因素参与腐蚀程度,分别构建层次模型和网络模型;最后对影响油罐底板上表面的11个因素进行综合排序。研究结果表明,综合研究方法具有合理性。     

Combustion of B4C/KNO3 binary pyrotechnic system

Presented herein is an experimental study on the combustion of B4C/KNO3 binary pyrotechnic system.Combustion products were tested using X-ray diffraction(XRD),scanning electron microscopy(SEM),and energy dispersive spectrometer(EDS).According to the results of tests and CEA calculation,the combustion reaction equation was established.The flames and burning rates were recorded by a high speed camera and a spectrophotometer.The effect of B4C particle size on the thermal sensitivity of B4C/KNO3 was investigated by differential scanning calorimetry(DSC)techniques.In addition,a reliable method for calculating the flame temperature was proposed.Based on the results of experiments,the combustion reaction mechanism was briefly analyzed.The burning rate,flame temperature and thermal sensitivity of B4C/KNC3 increase with the decrease of B4C particle size.The mass ratio of B4C/KNO3 has a great effect on combustion properties.Oxidizer-rich compositions have low flame temperatures,low burning rates,and provide green light emission.The combustion reactions of fuel-rich compositions are vigorous,and the B4C/KNO3 with mass ratio of 25:75 has the highest burning rate and the highest flame temperature.     

Pressure relief of underground ammunition storage under missile accidental ignition

Safety of underground ammunition storage is an important issue, especially during the accidental ignition of missiles. This work investigates the pressure and temperature distribution of the multi-layer underground ammunition storage with a pressure relief duct during the accidental ignition process of the missile. A large-scale experiment was carried out using a multi-layered restricted space with a pressure relief duct to simulate the underground ammunition store and a solid rocket motor to simulate the accidental ignition of the missile. The results show that when the motor gas mass flow increased by 5.6 times, the maximum pressure of the ammunition storage increased by 5.87 times. At a certain motor flow rate, when the pressure relief exhaust area at the end of the relief duct was reduced by 1/2, the maximum pressure on the first layer did not change. But the rate of pressure relief was reduced and the time delayed for the pressure of ammunition store to drop to zero. In this experiment, when the motor ignition position was located in to the third layer ammunition chamber, the maximum pressure was reduced by 32.9％ and also reduced the rate of change of pressure. In addition, for the experimental conditions, the theoretical analysis of the pressure relief of the ammunition storage is given by a simplified model. Based on the findings, some suggestions to the safety protection design of ammunition store are proposed.     

光滑物体表面反射光偏振特征分析及反射光分离技术

物体表面反射光由镜面反射光和漫反射光组成,针对光滑物体表面镜面反射光和漫反射光的分离问题,建立了一个结合镜面反射和漫反射共同作用的偏振态表征模型,并使用该模型对混合反射区域偏振特征进行分析。基于镜面反射光和漫反射光的偏振特征,根据镜面反射光和漫反射光在光滑物体表面垂直方向及平行方向上的分布关系,采用偏振正交分解的方法实现了镜面反射成分和漫反射成分的求解。利用镜面反射光图像和漫反射光图像之间的相关性,通过梯度下降算法得到镜面反射成分和漫反射成分归一化互相关最小值及其对应的镜面反射偏振度和漫反射偏振度,从而实现反射光的分离。通过对不同场景中获取的反射光图像进行测试,实验结果表明,该算法具有较好的反射光分离效果。     

地空无人平台协同作战应用研究

战争即将进入智能化时代,无人装备将成为未来战场主角.地空无人平台协同应用是未来战场的必然趋势.基于未来战场复杂作战环境需求,针对地空无人平台协同作战应用进行研究.合理分析协同作战应用的必然性;从协同侦察感知、协同指挥控制、协同支援保障、协同防御警戒4个领域进行作战应用研究,并分析其技术基础及可行性;列出地空协同运用存在的难点并给出合理的意见建议,为陆军作战、编制及装备体系的论证规划提供参考.     

面向任务的指挥控制系统能力适配分析研究

系统能力准确适配作战任务需求是面向任务的指挥控制系统构建的基础.分别建立典型作战任务模型和面向任务的指挥控制系统能力模型,并使用UML语言规范性检查方法,使上述概念形成规范的语义表达.通过将作战任务分解到元任务,建立作战任务与系统能力需求的映射关系.在此基础上,采集并分析指挥控制系统资源性能参数,实现对面向任务的指挥控制系统适配作战任务需求的定量评价.