文章基本信息

标题：Methods of reliability assessment of heterogeneous redundant systems
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作者：Elena Rogova ; Gabriel Lodewijks
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2016
卷号：49
期号：12
页码：139-144
DOI：10.1016/j.ifacol.2016.07.564
语种：English
出版社：Elsevier
摘要：Reliability assessment is required for the determination of a safety integrity level (SIL) of safety systems in accordance to the functional safety approach. Functional safety standards suggest formulas for calculating PFD/PFH which numerical values are used for establishing correspondence to the SIL. However these formulas cannot be used for heterogeneous redundant systems with a combination of mechanical, electronic/electrical components and constant and non-constant failure rates. In this paper we present an overview of reliability assessment methods that are able to cope with these features of heterogeneous redundant systems, show their advantages, drawbacks and limitations in application.
关键词：reliability analysisredundancyheterogeneous systemsnon-constant failure ratesprobability of failure on demandsafety integrity level