Application of causality diagram in system safety analysis  

作　　者：梁新元 

机构地区：[1]Automation College,Chongqing University,Chongqing 400030,P.R.China ,College of computer science,Chongqing Technology and Business University,Chongqing 400067,P.R.China

出　　处：《Journal of Chongqing University》2005年第3期158-163,共6页重庆大学学报（英文版）

基　　金：Supported by the Natural Science Foundation of China (No. 59677009); the National Research Foundation for the Doctoral Program of Higher Education of China (No.99061116)

摘　　要：Causality Diagram (CD) is a new graphical knowledge representation based on probability theory. The application of this methodology in the safety analysis of the gas explosion in collieries was discussed in this paper, and the Minimal Cut Set, the Minimal Path Set and the Importance were introduced to develop the methodology. These concepts are employed to analyze the influence each event has on the top event ? the gas explosion, so as to find out about the defects of the system and accordingly help to work out the emphasis of the precautionary work and some preventive measures as well. The results of the safety analysis are in accordance with the practical requirements; therefore the preventive measures are certain to work effectively. In brief, according to the research CD is so effective in the safety analysis and the safety assessment that it can be a qualitative and quantitative method to predict the accident as well as offer some effective measures for the investigation, the prevention and the control of the accident.Causality Diagram （CD） is a new graphical knowledge representation based on probability theory. The application of this methodology in the safety analysis of the gas explosion in collieries was discussed in this paper, and the Minimal Cut Set, the Minimal Path Set and the Importance were introduced to develop the methodology. These concepts are employed to analyze the influence each event has on the top event - the gas explosion, so as to find out about the defects of the system and accordingly help to work out the emphasis of the precautionary work and some preventive measures as well. The results of the safety analysis are in accordance with the practical requirements; therefore the preventive measures are certain to work effectively. In brief, according to the research CD is so effective in the safety analysis and the safety assessment that it can be a qualitative and quantitative method to predict the accident as well as offer some effective measures for the investigation, the prevention and the control of the accident.

关 键 词：causality diagram （CD） gas explosion safety analysis minimal cut set （MCS） minimal path set （MPS） 

分 类 号：TD712[矿业工程—矿井通风与安全]