Volume 39, Number 1, February 2021
|Page(s)||197 - 207|
|Published online||09 April 2021|
Modeling and analysis of mission thread of weapon system of systems based on O-PPN
Coast Guard College, Navy Aeronautical University, Yantai 264000, China
2 The Second Military Representative Office in Shenyang, Department of Army Equipment, Shenyang 110000, China
3 Equipment Support Unit, Department of Naval Equipment, Beijing 100089, China
Aiming at the problem that the current WSoS mission modeling and analysis methods are difficult to describe the property of multi-state of each equipment system, combining with Petri net and Markov process, an O-PPN based mission thread modeling and analysis method is proposed in this paper. Based on the definition of WSoS, the mission of WSoS is formally described. To improve the traditional Petri net, an operation performance Petri net (O-PPN) is constructed, in order to meet the modeling needs of the general mission thread of the WSoS; and aiming at the problems of the performance degradation of the equipment system and the possible "ahead of time" state, the performance degradation model of the equipment system based on Markov is constructed. The corresponding state probability set is obtained by inputting the reliability parameters of each equipment system. And according to the requirements of each operation in the mission thread for the performance level of each equipment system and combined with the mission success and failure criteria of the combat task and operation, the mission success probability of the whole WSoS is calculated. Finally, the feasibility of the proposed method is verified by the simulation of the case.
针对当前武器装备体系(weapon system of systems，WSoS)任务建模分析方法难以描述各装备系统多态性的问题，结合Petri网与Markov过程提出了一种基于O-PPN的装备体系任务线程建模与分析方法。在定义武器装备体系的基础上，对装备体系的使命任务进行形式化描述。改进传统Petri网，构建一种行动-性能Petri网(operation-performance Petri net，O-PPN)，以满足装备体系一般任务线程的建模需要，同时针对装备系统性能退化及可能存在"提前"状态的问题，构建基于Markov的装备系统性能退化模型，通过输入各装备系统的可靠性参数得到相应的状态概率集合，并根据任务线程中各行动对于各装备系统性能水平的要求，结合作战任务及行动的任务成功与失败准则，计算装备体系整体的任务成功概率，最后通过对案例进行仿真运算，验证了所提方法的可行性。
Key words: weapon system of systems (WSoS) / mission thread / Petri net / Markov process / system performance / performance degradation model
关键字 : 装备体系 / 任务线程 / Petri网 / Markov过程 / 系统性能 / 性能退化模型
© 2021 Journal of Northwestern Polytechnical University. All rights reserved.
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