The contribution rate of equipment system-of-systems architecture(ESoSA)is an important index to evaluate the equipment update,development,and architecture optimization.Since the traditional ESoSA contribution rate ev...The contribution rate of equipment system-of-systems architecture(ESoSA)is an important index to evaluate the equipment update,development,and architecture optimization.Since the traditional ESoSA contribution rate evaluation method does not make full use of the fuzzy information and uncertain information in the equipment system-of-systems(ESoS),and the Bayesian network is an effective tool to solve the uncertain information,a new ESoSA contribution rate evaluation method based on the fuzzy Bayesian network(FBN)is proposed.Firstly,based on the operation loop theory,an ESoSA is constructed considering three aspects:reconnaissance equipment,decision equipment,and strike equipment.Next,the fuzzy set theory is introduced to construct the FBN of ESoSA to deal with fuzzy information and uncertain information.Furthermore,the fuzzy importance index of the root node of the FBN is used to calculate the contribution rate of the ESoSA,and the ESoSA contribution rate evaluation model based on the root node fuzzy importance is established.Finally,the feasibility and rationality of this method are validated via an empirical case study of aviation ESoSA.Compared with traditional methods,the evaluation method based on FBN takes various failure states of equipment into consideration,is free of acquiring accurate probability of traditional equipment failure,and models the uncertainty of the relationship between equipment.The proposed method not only supplements and improves the ESoSA contribution rate assessment method,but also broadens the application scope of the Bayesian network.展开更多
针对一类由众多组件系统集结而成的系统之系统(system of systems,SoS),以美国国防部体系结构框架(DoDAF)为标准,提出了一种基于面向对象思想的SoS体系结构DoDAF作战视图产品五阶段迭代设计方法。利用UML静态和动态建模机制的特点,采用...针对一类由众多组件系统集结而成的系统之系统(system of systems,SoS),以美国国防部体系结构框架(DoDAF)为标准,提出了一种基于面向对象思想的SoS体系结构DoDAF作战视图产品五阶段迭代设计方法。利用UML静态和动态建模机制的特点,采用自顶向下、自底向上相结合的方式实现SoS体系结构作战视图产品的面向对象描述。以一个战术导弹防御(tactical missile defense,TMD)系统为例,详细说明SoS体系结构DoDAF作战视图产品的面向对象设计过程,并总结了该方法的两大优越特性:横向通用性与纵向可复用性,以及由此给SoS体系结构带来的"柔性"优势。这是传统设计方法所不能实现的。展开更多
"系统的系统"(System of Systems,SoS)是一类由众多异质的组件系统为了特定的使命而集成起来的松耦合复杂自适应系统。参照美国国防部体系结构框架DoDAF V2.0,提出了一种面向对象的SoS体系结构建模方法。根据SoS的基本特性,..."系统的系统"(System of Systems,SoS)是一类由众多异质的组件系统为了特定的使命而集成起来的松耦合复杂自适应系统。参照美国国防部体系结构框架DoDAF V2.0,提出了一种面向对象的SoS体系结构建模方法。根据SoS的基本特性,运用统一建模语言(Unified Modeling Language,UML)技术,介绍了面向对象的SoS体系结构的建模思想、方法及过程。最后以自动着舰系统体系结构设计为例,详细展示面向对象的体系结构建模方法的实现步骤,提供组件系统体系结构的建模设计顺序及开发流程。该方法可用于集成系统功能仿真的顶层设计。展开更多
For the rapidly developing unmanned aerial vehicle(UAV)swarm,the system-of-systems(SoS)oriented design is a prospective conceptual design methodology due to the competence for complex mission requirements and subsyste...For the rapidly developing unmanned aerial vehicle(UAV)swarm,the system-of-systems(SoS)oriented design is a prospective conceptual design methodology due to the competence for complex mission requirements and subsystems interactions.In the SoS oriented design,the subsystems performance trade-off is the basis of design decisions.In the trade-off for surveillance missions,most previous works do not consider track reporting and mainly focus on the design of platforms.An improved method for the subsystems performance trade-off in the SoS oriented UAV swarm design is proposed.Within an improved design framework with subsystems disaggregation,this method is characterized by treating platforms,sensors,and communications as equally important subsystems,integrating operational strategies into the trade-off,and enabling the trade-off for track reporting.Those advantages are achieved by a behavior-based modular model structure for agent-based operational modeling and simulation.In addition,a method of analyzing the bounds of the communication range is also presented.Simulation experiments are conducted by using precision-based simulation replication rules and surrogate modeling methods.The results demonstrate the effectiveness of the proposed method,and show that the configuration of area partitioning changes the trade space of subsystems performances,indicating the necessity of integrating operational strategies into the conceptual design.展开更多
基金supported by the National Key Research and Development Project(2018YFB1700802)the National Natural Science Foundation of China(72071206)the Science and Technology Innovation Plan of Hunan Province(2020RC4046).
文摘The contribution rate of equipment system-of-systems architecture(ESoSA)is an important index to evaluate the equipment update,development,and architecture optimization.Since the traditional ESoSA contribution rate evaluation method does not make full use of the fuzzy information and uncertain information in the equipment system-of-systems(ESoS),and the Bayesian network is an effective tool to solve the uncertain information,a new ESoSA contribution rate evaluation method based on the fuzzy Bayesian network(FBN)is proposed.Firstly,based on the operation loop theory,an ESoSA is constructed considering three aspects:reconnaissance equipment,decision equipment,and strike equipment.Next,the fuzzy set theory is introduced to construct the FBN of ESoSA to deal with fuzzy information and uncertain information.Furthermore,the fuzzy importance index of the root node of the FBN is used to calculate the contribution rate of the ESoSA,and the ESoSA contribution rate evaluation model based on the root node fuzzy importance is established.Finally,the feasibility and rationality of this method are validated via an empirical case study of aviation ESoSA.Compared with traditional methods,the evaluation method based on FBN takes various failure states of equipment into consideration,is free of acquiring accurate probability of traditional equipment failure,and models the uncertainty of the relationship between equipment.The proposed method not only supplements and improves the ESoSA contribution rate assessment method,but also broadens the application scope of the Bayesian network.
文摘针对一类由众多组件系统集结而成的系统之系统(system of systems,SoS),以美国国防部体系结构框架(DoDAF)为标准,提出了一种基于面向对象思想的SoS体系结构DoDAF作战视图产品五阶段迭代设计方法。利用UML静态和动态建模机制的特点,采用自顶向下、自底向上相结合的方式实现SoS体系结构作战视图产品的面向对象描述。以一个战术导弹防御(tactical missile defense,TMD)系统为例,详细说明SoS体系结构DoDAF作战视图产品的面向对象设计过程,并总结了该方法的两大优越特性:横向通用性与纵向可复用性,以及由此给SoS体系结构带来的"柔性"优势。这是传统设计方法所不能实现的。
基金supported by the National Natural Science Foundation of China(11872314)the National Key Research and Development Program of China(2017YFB1300102)
文摘For the rapidly developing unmanned aerial vehicle(UAV)swarm,the system-of-systems(SoS)oriented design is a prospective conceptual design methodology due to the competence for complex mission requirements and subsystems interactions.In the SoS oriented design,the subsystems performance trade-off is the basis of design decisions.In the trade-off for surveillance missions,most previous works do not consider track reporting and mainly focus on the design of platforms.An improved method for the subsystems performance trade-off in the SoS oriented UAV swarm design is proposed.Within an improved design framework with subsystems disaggregation,this method is characterized by treating platforms,sensors,and communications as equally important subsystems,integrating operational strategies into the trade-off,and enabling the trade-off for track reporting.Those advantages are achieved by a behavior-based modular model structure for agent-based operational modeling and simulation.In addition,a method of analyzing the bounds of the communication range is also presented.Simulation experiments are conducted by using precision-based simulation replication rules and surrogate modeling methods.The results demonstrate the effectiveness of the proposed method,and show that the configuration of area partitioning changes the trade space of subsystems performances,indicating the necessity of integrating operational strategies into the conceptual design.
