文献类型：期刊文献

中文题名：不完全无关性覆盖模型下容错系统可靠性分析方法

英文题名：Reliability Evaluation of Fault-Tolerant System Based on Imperfect Irrelevant Coverage Model

作者：周四维[1];李奕康[2];曾婷[1];罗瑞奇[3];李昭[1]

机构：[1]广东海洋大学数学与计算机学院,广东湛江524088;[2]江西农业大学软件学院,江西南昌330045;[3]武汉纺织大学计算机与人工智能学院,湖北武汉430200

年份：2026

卷号：72

期号：1

起止页码：125

中文期刊名：武汉大学学报(理学版)

外文期刊名：Journal of Wuhan University(Natural Science Edition)

收录：北大核心2023、、北大核心

基金：国家自然科学基金(61672398);湛江市科技计划项目(2024B01067);广东海洋大学科研启动基金(060302102302,R20079)。

语种：中文

中文关键词：不完全故障覆盖模型;无关性覆盖模型;故障树;二元决策图;可靠性分析

外文关键词：imperfect fault coverage model;irrelevance coverage model;fault tree;binary decision diagram;reliability analysis

中文摘要：针对实际工程应用中系统无关部件的检测、定位和隔离可能出现失败的问题,分别探究无关部件隔离成功与失败时其覆盖失效与未覆盖失效对系统可靠性的影响,厘清它们之间的逻辑关系,提出一种不完全无关性覆盖模型(Imperfect Irrelevance Coverage Model,IICM)。在IICM中提出将隔离因子用于量化无关部件隔离的成功率。IICM可以兼容不完全故障覆盖模型(Imperfect Fault Coverage Model,IFCM)与无关性覆盖模型(Irrelevance Coverage Model,ICM)。此外,提出一种基于二元决策图的不完全无关性覆盖下容错系统可靠性组合定量分析方法。案例分析结果表明:1)IICM具有通用性,其组合定量分析方法具有有效性;2)IICM相比IFCM可在不增加冗余的前提下提高系统可靠性,相比ICM在考虑无关性部件隔离效果方面做出了进一步优化。

外文摘要：To address the issue that the detection,location,and isolation of irrelevant system components may fail in actual engineering applications,this paper explores the impact of coverage failure and uncovered failure on the system under conditions of successful and unsuccessful isolation of the irrelevant components,clarifies the logical relationship between them,and proposes the Imperfect Irrelevance Coverage Model(IICM).In the IICM,an isolation factor is proposed to quantify a probability of successful isolation related to the irrelevant component.The IICM can be compatible with the imperfect fault coverage model(IFCM)and the irrelevance coverage model(ICM).Also,a combinatorial method is proposed for the fault-tolerant system reliability quantitative analysis based on the binary decision diagram considering imperfect irrelevance coverage.The results of the case study show that:1)IICM is universal and its combinatorial quantitative analysis method is effective;2)Compared with the IFCM,the IICM can improve system reliability without increasing redundancy.Also,the IICM improves the ICM by considering the isolation impact of irrelevant components.