基于n策略假期的FTC系统在备用切换故障下的可靠性分析

IF 0.7 Q4 OPERATIONS RESEARCH & MANAGEMENT SCIENCE
Sudeep Kumar, Ritu Gupta
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引用次数: 1

摘要

本文的目的是研究一个多单元容错控制(FTC)系统的可靠性指标,其中单元受到故障的影响,而那些是由两个异构服务器修复的。服务器1对故障单元的基本服务保持永久可用,而服务器2则休假并根据N-policy阈值提供服务,这也可能提供可选的和基本的服务。服务器1在其服务期间可能以稳定的速率发生故障,但会立即得到修复并恢复对故障单元的服务。当工作单元发生故障时,可用的热备用单元负责系统的平稳运行。备用机组切换到运行模式可能不成功,且存在切换失效概率。我们建立了一个马尔可夫模型来获得稳态概率。我们探索计算和灵敏度分析的不同性能措施的各种可变性的参数
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Reliability analysis of N-policy vacation based FTC system subject to standby switching failures
The paper is aimed to investigate the reliability metrics of a multi-unit fault-tolerant control (FTC) system wherein the units are subject to failure and those are repairable by two heterogeneous servers. Server 1 remains permanently available for essential service of failed units, whereas server 2 goes on vacation and renders service based on the N-policy threshold, which may also provide optional and essential services. Server 1 may break down at a steady rate during its servicing period but immediately gets repaired and resume servicing the failed units. When the working unit fails, the available warm standby unit holds responsibility for the smooth operation of the system. The transition of standby units to operational mode may be unsuccessful with switching failure probability. We develop a Markovian model to obtain the steady-state probabilities. We explore computational and sensitivity analysis of different performance measures for various variability of the parameters
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来源期刊
Operations Research and Decisions
Operations Research and Decisions OPERATIONS RESEARCH & MANAGEMENT SCIENCE-
CiteScore
1.00
自引率
25.00%
发文量
16
审稿时长
15 weeks
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