| 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)
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| Department | 工业控制网络与系统研究室 |
| Source Publication | Reliability Engineering and System Safety
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| ISSN | 0951-8320 |
| 2017 | |
| Volume | 165Pages:170-187 |
| Indexed By | SCI ; EI |
| EI Accession number | 20171603574274 |
| WOS ID | WOS:000403993800015 |
| Contribution Rank | 1 |
| Funding Organization | China Scholarship Council ; 863 Project of China [2013AA040304] |
| Keyword | Functional Safety Sil Verification Diverse Redundancy System Degradation Moon(d) Voting Group Rbd |
| Abstract | 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. |
| Language | 英语 |
| WOS Headings | Science & Technology ; Technology |
| WOS Subject | Engineering, Industrial ; Operations Research & Management Science |
| WOS Keyword | COMMON-CAUSE FAILURES ; SAFETY ; AVAILABILITY ; COMPONENTS ; EQUATIONS ; SUBJECT ; PFH |
| WOS Research Area | Engineering ; Operations Research & Management Science |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sia.cn/handle/173321/20351 |
| Collection | 工业控制网络与系统研究室 |
| Corresponding Author | Ding L(丁龙) |
| Affiliation | 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 |
| Recommended Citation 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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