摘要
为应对系统故障演化过程(system fault evolution process,SFEP)中获得的不同类型故障数据分析问题,在空间故障网络(space fault network,SFN)框架内提出了四种最终事件发生概率计算方法.这些方法由浅入深的基于四种数据采取了不同方式和逻辑进行计算.就实例而言,可计算在给定条件下最终事件发生概率、次数和概率分布.方法1)、2)和4)得到的最终事件V和U发生概率差两个数量级,这与边缘事件和连接的数量有关;方法3)可得边缘事件发生次数与最终事件发生次数的关系.研究为SFN提供了应对不同基础数据的方法,也增强了不同情况下最终事件的分析能力.
To deal with the different types of fault data obtained from System Fault Evolution Process(SFEP),four methods were proposed.They were used to calculate the occurrence probability of target event within the framework of Space Fault Network(SFN).The methods are based on four kinds of fault data layer by layer,and use the different methods and logic to calculate.The probability,number and probability distribution of target event can be calculated under given conditions.The probability difference of target events V and U is two orders of magnitude obtained by the methods 1,2 and 4.And it is related to the number of edge events and connections.The relationship between the occurrence times of edge event and that of the target event can be obtained from methods 3.The research provides some methods to deal with different basic data,and also enhances the ability to analyze the target event in different situations with SFN.
作者
崔铁军
李莎莎
CUI Tiejun;LI Shasha(College of Safety Science and Engineering,Liaoning Technical University,Fuxin 123000;School of Business Administration,Liaoning Technical University,Huludao 125105)
出处
《系统科学与数学》
CSCD
北大核心
2020年第11期2151-2160,共10页
Journal of Systems Science and Mathematical Sciences
基金
国家自然科学基金(51704141,52004120)
国家重点研发计划项目(2017YFC1503102)资助课题。
关键词
安全系统工程
空间故障网络
系统故障演化过程
最终事件
数据特征
Safety system engineering
space fault network
system fault evolution process
target event
data characteristics
