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题名: A novel method for SIL Verification based on system degradation using reliability block diagram
作者: Ding L(丁龙) ; Wang H(王宏) ; Kang K(康凯) ; Wang K(王锴)
作者部门: 工业控制网络与系统研究室
关键词: Functional safety ; SIL verification ; System degradation ; RBD ; IEC 61508 ; IEC 61131-6
刊名: RELIABILITY ENGINEERING & SYSTEM SAFETY
ISSN号: 0951-8320
出版日期: 2014
卷号: 132, 页码:36-45
收录类别: SCI ; EI
产权排序: 1
摘要: Safety integrity level (SIL) verification plays a critical role in reliability assessment of safety related systems. However, current methods available for SIL verification are too complicated to be applied in practice. Therefore, a novel method for SIL verification, which is based on system degradation using reliability block diagram (RBD), is proposed in this paper. The key idea of the method proposed is to perform RBD analysis and calculation of average probability of dangerous failure on demand (PFDG) at each stage of system degradation, which is caused by failures of redundant channels. The method has been applied to several classical redundant architectures of safety related systems, and could make the SIL verification process simpler. Further, the formulae obtained are identical with those given in IEC 61508.
语种: 英语
WOS记录号: WOS:000343346800004
WOS标题词: Science & Technology ; Technology
类目[WOS]: Engineering, Industrial ; Operations Research & Management Science
关键词[WOS]: PROGRAMMABLE ELECTRONIC SYSTEMS ; SAFETY INTEGRITY LEVELS ; MODEL ; STANDARDS
研究领域[WOS]: Engineering ; Operations Research & Management Science
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内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/15441
Appears in Collections:工业控制网络与系统研究室_期刊论文

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Recommended Citation:
丁龙;王宏;康凯;王锴;.A novel method for SIL Verification based on system degradation using reliability block diagram,RELIABILITY ENGINEERING & SYSTEM SAFETY,2014,132():36-45
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