基于二元决策图的护航编队多阶段任务体系可靠性分析  

Reliability Analysis of Phased-mission System of Systems for Escort Formation Based on BDD

作　　者：卞瑞兵 张扬 潘正强 程志君 白森洋 BIAN Ruibing;ZHANG Yang;PAN Zhengqiang;CHENG Zhijun;BAI Senyang(College of Systems Engineering, National University of Defense Technology, Changsha 410073,Hunan, China;Unit 92942 of PLA, Beijing 100089, China)

机构地区：[1]国防科技大学系统工程学院,湖南长沙410073 [2]92942部队,北京100089

出　　处：《兵工学报》2020年第5期1016-1024,共9页Acta Armamentarii

基　　金：国防科技大学预研基金项目(ZK17-02-08)。

摘　　要：护航编队由多艘舰船组成,是一个复杂的装备体系。以护航编队为对象,在多阶段任务系统基础上给出了多阶段任务体系的概念。针对护航编队特点,建立其任务可靠性模型,根据共同失效基本任务对阶段故障树进行化简。采用二元决策图(BDD)算法,对编队任务各阶段可靠事件进行分析,并给出了BDD算法求解任务进行到各阶段时可靠度的流程图和程序实现的伪代码。假设护航编队各系统寿命服从指数分布或威布尔分布,在此条件下对其执行护航任务过程的任务可靠性进行分析评估,验证了所提模型和方法的正确性。The escort formation consists of several ships and is a complex equipment system.The escort formation is taken as a research object,and the concept of phased mission system of systems(PMSoS)is proposed based on the phased mission system(PMS).A mission reliability model is established according to the characteristics of escort formation,and the phased fault tree is simplified according to the common failure basic task.On this basis,the binary decision diagram(BDD)modeling method is adopted to analyze the reliable events of each phase for the formation task,and the flow chart and detailed pseudo code implementation of BDD algorithm for solving the reliability to each stage are given.Finally,the reliability of escort mission process is analyzed and evaluated under the assumption that the life of escort formation system obeys the exponential distribution or the Weibull distribution,and the model and method proposed in this paper are verified.

关 键 词：护航编队 多阶段任务体系 可靠性 二元决策图 

分 类 号：E917[军事]