[1]范亚琼,陈海燕. 基于顺序逻辑的状态事件故障树定性分析模型[J].计算机技术与发展,2017,27(08):12-15.
　FAN Ya-qiong,CHEN Hai-yan. Qualitative Analysis Model of State/Event Fault Tree with Sequential Logic[J].,2017,27(08):12-15.
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 基于顺序逻辑的状态事件故障树定性分析模型()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
27
期数:
2017年08期
页码:
12-15
栏目:
智能、算法、系统工程
出版日期:
2017-08-10

文章信息/Info

Title:
 Qualitative Analysis Model of State/Event Fault Tree with Sequential Logic
文章编号:
1673-629X（2017)08-0012-04
作者:
 范亚琼; 陈海燕
 南京航空航天大学 计算机科学与技术学院
Author(s):
 FAN Ya-qiong; CHEN Hai-yan
关键词:
 ; 顺序逻辑; 端口映射表; 最小割序集; 转换规则; 定性分析
Keywords:
 ; sequential logic; port mapping table; minimum cut sequence set; conversion rules; qualitative analysis
分类号:
TP311
文献标志码:
A
摘要:
 针对现有的状态事件故障树(SEFT)定性分析方法在反映失效系统中构件状态与事件逻辑顺序关系方面的不足,提出了基于顺序逻辑的状态事件故障树定性分析模型.该模型通过建立构件与逻辑门的端口映射表,定义逻辑门到布尔逻辑的转换规则限定状态和事件的次序关系,根据顺序逻辑转换规则获得导致系统失效的状态事件序列(最小割序集),以解决系统失效应满足的状态与事件的逻辑顺序关系问题.为验证所提出模型的有效性和可行性,以火灾防护系统为研究对象进行了实例验证实验.实验结果表明,所提出的模型有效可行,所获得的最小割序集能够反映各失效事件和状态间的顺序逻辑关系,分析结果符合客观实际,为SEFT的定性分析提供了一种新的技术途径和方法借鉴.
Abstract:
 In order to overcome the shortcomings of reflecting the relationship between component state and sequential logic in failure system for State/Event Fault Tree (SEFT) qualitative analysis method,a qualitative analysis model of state event fault tree based on sequential logic is proposed.It defines transition rule of logic gate to Boolean logic to define the order of state and event by establishment of the port mapping table of components and logic gates,and gets the sequence of state events (minimum cut sequence set) that leads to system failure according to sequential logic transformation rules to solve the problem of logic order of state and event for system failure.In order to verify the validity and feasibility of the proposed model,a fire protection system has been established as an example of object for verification experiment.It is indicated that the cut order set can reflect the sequential logic relation between the failure event and the state.The feasibility of this model has been verified,which is consistent with the objective reality.Therefore,a new effective approach is provided for the qualitative analysis of SEFT.

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更新日期/Last Update: 2017-09-20