Immune multi-agent model using vaccine for cooperative air-defense system of systems for surface warship formation based on danger theory

Aiming at the problem on cooperative air-defense of surface warship formation, this paper maps the cooperative airdefense system of systems （SoS） for surface warship formation （CASoSSWF） to the biological immune system （BIS） according to the similarity of the defense mechanism and characteristics between the CASoSSWF and the BIS, and then designs the models of components and the architecture for a monitoring agent, a regulating agent, a killer agent, a pre-warning agent and a communicating agent by making use of the theories and methods of the artificial immune system, the multi-agent system （MAS）, the vaccine and the danger theory （DT）. Moreover a new immune multi-agent model using vaccine based on DT （IMMUVBDT） for the cooperative air-defense SoS is advanced. The immune response and immune mechanism of the CASoSSWF are analyzed. The model has a capability of memory, evolution, commendable dynamic environment adaptability and self-learning, and embodies adequately the cooperative air-defense mechanism for the CASoSSWF. Therefore it shows a novel idea for the CASoSSWF which can provide conception models for a surface warship formation operation simulation system.

Mission-oriented dynamic optimization model of carrying spares for warship redundant system

Redundancy is a common structure for warship system,and it is an effective way to improve the reliability of the system.In this paper, warship system is taken as the object of study,based on the system reliability equivalence principle, a spares demand rate calculation method for redundant system is proposed through structure transformation. According to the system analysis method, the general modeling data structure of spares support echelon and system indenture is established, and the mission success probability is taken as the optimization target to build the dynamic optimization model of carrying spares during the process of multi-phase. By introducing the Lagrange multiplier, the spares weight, volume and cost are transformed to the single target of the spares total scale, and the initial Lagrange factors and its dynamic adjustment policy is proposed. In a given example, the main influence factors of the carrying spares project are analyzed, and the study results are in accordance with the reality, which can provide a new approach to mission-oriented carrying spares optimization for the redundant system.

Modeling and Assessing a New Warship Maintenance System

The authors developed a prototype of a warship maintenance system. The process started by defining the maintenance requirements of warship equipment. Next, a planning scheme was development for a maintenance network. An optimization target for the plan and indexes for assessment were established. Based on the above work, a simulation model was proposed with two layers: a base and a workshop. Dispatching rules were then formulated for the simulation. Experimental results proved the validity of the model and the dispatching algorithm. It was found that the model can solve the capacity evaluation problem for maintenance systems and provides a scientific basis for decision-maker to make decisions regarding equipment maintenance.

基于综合贡献率的舰船装备体系寿命评估

为了更科学地预测装备寿命,提升装备的作战效益,从装备对体系的“综合贡献率”视角出发,探究了舰船装备“体系寿命”的评估方法。首先,基于作战环理论和非线性结构方程模型,引入二次交互项,构建舰船装备体系作战能力的指标体系,建立了体系作战效能的评估模型;然后,运用阈值法建立了舰船装备体系的复杂网络模型,基于拓扑特征统计值,构建了舰船装备体系网络结构特征的指标体系,将层次分析法与熵权法相结合来计算指标权重;最后,提出了舰船装备体系综合贡献率、体系寿命的定义和数学模型,并以航母编队体系对抗为算例,通过实验仿真数据,验证了模型和方法的可行性和有效性。

基于改进FCM算法的舰船备件分类方法研究

备件合理分类是舰船库存精准管理的基础,由于舰船备件种类繁多,运行环境复杂,传统分类方法无法满足其准确分类的需求,为此提出了一个多准则的三阶段分类新方法。该方法在建立舰船备件分类指标体系基础上,第1阶段采用层次分析法(AHP)计算各指标的主观权重;第2阶段引入指标权重和距离权重,并结合密度峰值聚类算法(DPC),构建了加权距离优化的改进FCM算法(WDP-FCM),实现备件粗聚类;第3阶段针对实际管理需求设计了全新的分类调整规则,根据综合得分调整部分部件所属类别,得到最终分类结果。通过采用公开数据集对WDP-FCM算法进行验证,结果表明该算法聚类效果相较于传统算法更为准确;此外,以某舰船出航携行备件数据为例进行验证,结果表明基于改进FCM算法的三阶段分类方法分类结果科学合理,可为舰船备件分类决策及管理提供科学有效的理论依据。

极地船舶直升机综合保障方法研究

为满足我国日益增加的极地船舶航空保障需求,有必要提出1套符合极地低温、结冰等极端环境条件下的船舶航空保障方法。该文通过对现行常用极地规范、标准及实船配置的研究,分析其与极地极端环境不相称之处,并借鉴国内外相关系统,提出针对性的改进方案。这些改进后的极地船舶航空保障方法,可有选择性地应用于未来极地船舶的设计和建造中。

基于效用函数的舰艇编队机动作战效能评估研究

舰艇机动能力作为编队作战能力的重要支撑之一,以往文献很少涉及编队机动作战能力评估;论文通过剖析舰艇编队机动作战概念,解析机动作战任务剖面,破解影响机动作战能力的关键因素,构建机动能力多层评估指标体系,采取解析聚合方式刻画编队机动作战能力;针对指标参数差异较大,采用效用函数转换不同指标的属性值,比较指标实际值与期望值之间的差距,建立效用评估模型,准确评价舰艇编队机动作战能力,通过实例分析验证函数模型可行性。

面向体系仿真的蓝军舰艇编队防空作战指控建模方法

舰艇编队防空作战指挥控制是蓝军实施海上对空作战任务的关键环节,舰艇编队防空作战指控建模是蓝军海上作战体系仿真建模的重要组成部分。基于体系对抗的仿真应用背景,开展蓝军舰艇编队防空作战指控建模总体设计,采用模块化建模的方法设计资产综合管理与筹划、统一态势生成、作战指挥决策等功能模块,并参照蓝军作战指挥业务逻辑对各模块进行功能集成,构建蓝军舰艇编队防空作战指控系统模型,实验表明:所构建的蓝军舰艇编队防空作战指控模型能够实现编队防空作战指挥控制功能的模拟,并可模拟蓝军舰艇编队防空作战指挥控制流程,有效支撑体系对抗仿真需求。

Dynamic WTA optimization model of air defense operation of warships' formation

WTA （weapon-target allocation） of air defense operation is a very complicated problem and current models focus on static and restricted WTA problem mostly. Based on the dynamic characteristics of air defense operational command and decision of warships＇ formation, a dynamic WTA model is established. Simulation results show that switch fire and repetition fire of anti-air weapon system affect the result of the air defense operation remarkably and the dynamic model is more satisfying than static ones. Related results are gained based on the analysis of the simulation results and the results are accordant with the intuitionistic tactical judgment. The model is some reference for the research of air defense C^3I system of warships＇ formation.

Research on Software Structure Analysis Technology and Reliability Evaluation Method of Warship Equipment

In view of the current reliability evaluation requirements of warship equipment based on component, this paper comprehensively considered the characteristics of components,and the component identification method, structural decomposition method,component architecture modeling method were studied for warship equipment software. Based on the characteristics of warship equipment component, this paper proposed a formal modeling language based on Petri nets to realize the modeling of component software architecture and laid a foundation for the reliability evaluation method research of warship equipment component.

Risk transmission evaluation for parallel construction of warships based on IFCM and the cloud model

To cope with multi-directional transmission coupling,spreading, amplification, and chain reaction of risks during multiproject parallel construction of warships, a risk transmission evaluation method is proposed, which integrates an intuitionistic cloud model with a fuzzy cognitive map. By virtue of expectancy Ex, entropy En, and hyper entropy He, the risk fuzziness and randomness of the knowledge of experts are organically combined to develop a method for converting bi-linguistic variable decision-making information into the quantitative information of the intuitionistic normal cloud(INC) model. Subsequently, the threshold function and weighted summation operation in the traditional fuzzy cognitive map is converted into the INC ordered weighted averaging operator to create the risk transmission model based on the intuitionistic fuzzy cognitive map(IFCM) and the algorithm for solving it. Subsequently, the risk influence sequencing method based on INC and the risk rating method based on nearness are proposed on the basis of Monte Carlo simulation in order to realize the mutual conversion of the qualitative and quantitative information in the risk evaluation results.Example analysis is presented to verify the effectiveness and practicality of the methods.

The Model Research on the Flooding Time of the Warship Damaged Compartment

Research on damage stability and unsinkability is a valuable source of knowledge of behaving a ship while flooding its compartments. The time when compartment is flooded （ty） and stability parameters are key elements which have influence on a rescue action. The knowledge of the time mentioned is very important for a commanding officer to make decisions while fighting for survival of the ship. Therefore, the purpose of research was to develop a method to accurately and quickly calculate the flooding time of selected ship compartment. To provide the information about the time ty, a new method was designed. This method was based on an accurate determination of the amount of water entering to the compartment. For this purpose, the permeability depends on the water level in the compartment. Next, the computer program was built for both the time tfcalculation and showing the flooding process. This method was tested experimentally and the results of the tests are presented in the paper. In the next part of research, which was carried out on the laboratory stand bed, the flooding time of damaged compartment of warship model was measured. The results of calculation are compared to the experiments and discussed.

Prediction of Hull Deflection on Damaged Warship

The appropriate prediction of the hull deflection of a severely damaged warship is an important area in the research of the warship survivability. In this paper, the asymmetrical beam bending theory is applied to set up the damaged model, a comparison of the longitudinal strength, the deflections of damaged hull subjected to both hagging and sagging moments, and shear forces is carried out. The external loads are also calculated according to different damaged positions. Finally, some results and conclusions are obtained.

舰船抗爆抗冲击技术体系探析

舰船抗爆和抗冲击技术概念宏观,内涵广泛,对其认识理解、设计研究都需要技术体系的顶层划分和牵引。首先,基于武器攻击对舰船的爆炸毁伤类型,对舰船抗爆与抗冲击这两个概念进行划分;然后,基于舰船总体抗爆抗冲击设计技术需求,区分不同的研究对象及技术的基础理论,提出包含6大类型的舰船抗爆抗冲击技术体系的划分方案,即水上/水下防护结构设计、新型抗爆结构与毁伤分析、设备系统及人员抗冲击、舰船抗爆抗冲击试验验证及技术标准规范;最后,分别对舰船抗爆和抗冲击技术内涵进行详细阐述。所做研究可为我国舰船抗爆抗冲击技术体系的形成提供一个初步构想,供从事舰船抗爆抗冲击设计、研究及管理人员参考。

舰艇嵌入式训练系统时空一致性研究

针对训练系统嵌入舰艇实装后与作战系统不能保持时空一致性的问题,建立了异构系统节点时间补偿模型,用时间补偿向舰艇作战系统注入目标信息的时延;用预判武器命中目标逻辑距离消除武器命中目标的位置误差;在训练系统接口装置监听程序中建立了报文过滤流程,降低异构系统间数据传输的时延;采用了多分辨率建模方法和面向服务的软件架构,设计了训练软件在Windows+RTX下的运行流程,提高训练系统仿真的实时性。工程实践表明,综合采用上述方法可以满足舰艇实装嵌入式训练系统时空一致性的要求。

基于多状态故障树的舰船装备可靠性分析方法

为分析舰船装备的系统和单元部件介于正常和故障之间的中间过渡状态,结合实际工作情况,提出了一种基于多状态故障树的可靠性分析方法。以舰船电力系统为例,将传统故障树模型的底层事件布尔单元改进为可维修的三态(正常、劳损降级和故障)单元部件;结合智能体董正琼技术建立该多状态故障树仿真模型,各事件之间的从属关系采用抽象映射进行描述;通过多次蒙特卡洛仿真运行,根据各底事件发生概率定量计算出电力系统的可靠度统计值为99.624%,在一定程度上验证了所提可靠性分析方法的可行性。

基于改进粒子群算法的多约束随船备件配置优化

为合理配置船舶随船备件,构建了多约束条件下的备件配置优化模型,提出了一种改进的粒子群算法对模型求解。首先,以备件费用、存储空间、重量为约束条件,以最大化系统备件保障概率为优化目标,通过构造含罚函数的适应度函数,将多约束最优化问题转化为无约束最优化问题;其次,设计了一种基于模拟退火改进的粒子群算法求解优化模型;最后,通过开展仿真实验,证明了该方法在求解随船备件配置优化问题的有效性和优越性。

美国海军水面舰艇作战系统发展分析

基于当前美国海军水面舰艇兵力规模和作战系统部署情况,分析了美海军宙斯盾作战系统和自防御系统的发展演进和现状,探讨了朱姆沃尔特级驱逐舰、濒海战斗舰和无人艇作战系统的研制建设,展望了未来海上作战力量体系建设和作战系统发展,总结了美舰艇作战系统发展的可借鉴之处,以期促进我舰艇作战系统顶层设计和高质量发展。

舰艇作战系统仿真中信息交互的设计与实现

信息交互设计与实现是舰艇作战系统仿真中的重要环节。首先分析比较了当前分布交互式仿真中信息交互方式的特点,针对舰艇作战系统仿真平台集成过程中的信息交互需求,设计了基于HLA的舰艇作战系统仿真中的信息交互功能。接着,对信息交互实现进行了分析,重点研究了关键部件WINSOCK-HLA网关实现原理和结构,并给出实现过程关键模块类架构。最后,通过仿真应用和试验,该信息交互方案满足了仿真需求,同时也验证了方案的可行性和健壮性。

舰艇作战系统网络的一种分析方法

提供一种优化分析和评估舰艇作战系统网络的新方法。通过对舰艇作战系统网络在作战过程中的运行特征分析,发现该网络属于一类进化网络。应用复杂网络理论,建立了适用于该网络的进化网络模型,进而引入了度量该网络复杂性的参数——平均路径长度和平均集束系数,并建立了相应的数学模型。借助这些模型,仿真计算了网络复杂性参数随作战进程的变化情况,分析了它们对网络工作时效性和鲁棒性的影响。