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Verifying diversity defense mechanisms against common cause failures for safety instrumented systems using a stress-strength model
Wang K(王锴); Xu AD(徐皑冬); Wang H(王宏)
作者部门工业控制网络与系统研究室
会议名称2012 International Conference on Control Engineering and Communication Technology, ICCECT 2012
会议日期December 7-9, 2012
会议地点Shenyang, Liaoning, China
会议录名称Proceedings - 2012 International Conference on Control Engineering and Communication Technology, ICCECT 2012
2012
页码362-367
收录类别EI ; CPCI(ISTP)
EI收录号20130916071150
WOS记录号WOS:000316387300088
产权排序1
ISBN号978-0-7695-4881-4
关键词Chemical Reactors Communication Reliability Analysis
摘要Common cause failure (CCF) is a serious threat to Safety Instrumented Systems (SIS) reliability. It is therefore important to model and quantify CCF in reliability analysis. Diversity has long been used to protect redundant systems against CCF. Whilst there is clear evidence that diversity can bring benefits when compared with identical redundancy systems, these benefits can be difficult to quantify. Therefore, a novel CCF model which studies CCF from the viewpoint of Root Cause (RC) and Coupling Factor is proposed in this paper. The key parameters of the novel CCF model can be determined based on a stress-strength model by classifying variables of stressors and strengths according to RC categories. An application example is provided that illustrates how the proposed CCF model performs for a chemical reactor safety system (CRSS) for protection against high pressure and temperature. The results not only confirm that diversity techniques lower the CCF probability but also provide quantitative assessment of how large the improvements can be in different diversity techniques. © 2012 IEEE.
语种英语
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文献类型会议论文
条目标识符http://ir.sia.cn/handle/173321/10404
专题工业控制网络与系统研究室
作者单位Key Laboratory of Industrial Informatics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
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Wang K,Xu AD,Wang H. Verifying diversity defense mechanisms against common cause failures for safety instrumented systems using a stress-strength model[C],2012:362-367.
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