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SIL verification for SRS with diverse redundancy based on system degradation using reliability block diagram
Ding L(丁龙); Wang H(王宏); Jiang, Jin; Xu AD(徐皑冬)
作者部门工业控制网络与系统研究室
关键词Functional Safety Sil Verification Diverse Redundancy System Degradation Moon(d) Voting Group Rbd
发表期刊Reliability Engineering and System Safety
ISSN0951-8320
2017
卷号165页码:170-187
收录类别SCI ; EI
EI收录号20171603574274
WOS记录号WOS:000403993800015
产权排序1
资助机构China Scholarship Council ; 863 Project of China [2013AA040304]
摘要Safety integrity level (SIL) verification is a critical step in safety lifecycle of safety-related systems (SRS). Introducing redundancy into SRS raises two issues: voting group configuration and common cause failures (CCF). In order to minimize CCF, diverse redundancy is widely adopted by SRS. However, in the past, almost all attention of SIL verification has been paid to identical redundancy, this is reflected in IEC 61508, ISA-TR84.00.02 and scientific literatures. Therefore, a novel method for SIL verification of SRS with diverse redundancy based on system degradation is proposed. Key idea of the method is to calculate average probability of dangerous failure on demand (PFDG) at each stage of system degradation, which is caused by failures of redundant channels. To validate proposed method, it has been applied on safety shutdown system of Nuclear Power Control Test Facility, and numerical result is compared with FTA and FRANTIC model. Sensitivity studies and comparison of numerical results indicate that the method has very good consistency with FTA and FRANTIC model. Moreover, two sets of general formulae for PFDGof any MooN(D) group with diverse redundancy are provided. From engineering practice point of view, it makes SIL verification process simpler.
语种英语
WOS标题词Science & Technology ; Technology
WOS类目Engineering, Industrial ; Operations Research & Management Science
关键词[WOS]COMMON-CAUSE FAILURES ; SAFETY ; AVAILABILITY ; COMPONENTS ; EQUATIONS ; SUBJECT ; PFH
WOS研究方向Engineering ; Operations Research & Management Science
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sia.cn/handle/173321/20351
专题工业控制网络与系统研究室
通讯作者Ding L(丁龙)
作者单位1.Key Laboratory of Networked Control Systems, Chinese Academy of Sciences, Shenyang Institute of Automation, University of Chinese Academy of Sciences, No. 114 Nanta Street, Shenyang 110016, China
2.Department of Electrical and Computer Engineering, Western University, 1151 Richmond Street North, London, Ontario, N6A 5B9, Canada
推荐引用方式
GB/T 7714
Ding L,Wang H,Jiang, Jin,et al. SIL verification for SRS with diverse redundancy based on system degradation using reliability block diagram[J]. Reliability Engineering and System Safety,2017,165:170-187.
APA Ding L,Wang H,Jiang, Jin,&Xu AD.(2017).SIL verification for SRS with diverse redundancy based on system degradation using reliability block diagram.Reliability Engineering and System Safety,165,170-187.
MLA Ding L,et al."SIL verification for SRS with diverse redundancy based on system degradation using reliability block diagram".Reliability Engineering and System Safety 165(2017):170-187.
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