Analysis of Continuously Maintained Complex Redundancy System with CCF Based on GO-FLOW Methodology
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摘要: 通过改进GO-FLOW操作符功能,结合可修系统共因失效发生概率的计算模型,研究了在风险评价中应用GO-FLOW方法进行含共因失效的可修复复杂冗余系统可靠性定量分析,给出了实际算例。分析结果表明,GO-FLOW方法能够有效地定量分析包含多种共因故障和多重共因失效部件组(CCCG)的复杂系统可靠性,并能够直观地反映出系统运作过程中故障概率的变化趋势;与GO法相比,GO-FLOW方法能够更简捷地对多状态复杂系统进行共因失效定量分析。Abstract: By improving the function of GO-FLOW operators,and referring to the quantificational cal-culation model to solve the Common Cause Failure（CCF） in the continuously maintained system,a quantita-tive analysis method was developed to analyze the continuously maintained complex redundancy system reli-ability with CCF by the GO-FLOW in probability risk assessment,and a practical calculation example was presented.It shows that the GO-FLOW algorithm can effectively analyze the reliability of the complex system which contains many sorts of cause leading to CCF and multiple Common Cause Failure Component Groups（CCCGs）,and which can intuitively reflects the changing trend of failure probability in the operation process of the system.Compared with GO methodology,the GO-FLOW can effectively analyze the multi-state and complex system in quantificational calculation of the CCF.
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Key words:
- GO-FLOW /
- CCF /
- Continuously maintained system /
- Redundancy /
- Reliability
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