| Application of causality diagram in system safety analysis |
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| 作者姓名： | LIANG Xin-yuan SHI Qing-xi ZHANG Qin |
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| 作者单位： | [1]Automation College, Chongqing University, Chongqing 400030, P.R. China [2]College of computer science, Chongqing Technology and Business University, Chongqing 400067, P.R. China |
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| 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.
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| 关 键 词： | 煤矿 气体爆炸 瓦斯 安全分析 因果关系图 MCS MPS |
| 文章编号： | 1671-8224（2005）03-0158-06 |
| 收稿时间： | 2005-02-19 |
| 修稿时间： | 2005-04-18 |
Application of causality diagram in system safety analysis |
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| LIANG Xin-yuan SHI Qing-xi ZHANG Qin.Application of causality diagram in system safety analysis[J].Journal of Chongqing University,2005,4(3):158-163. |
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| Authors: | LIANG;Xin-yuan;SHI;Qing-xi;ZHANG;Qin |
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| Abstract: | 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. |
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| Keywords: | causality diagram (CD) gas explosion safety analysis minimal cut set (MCS) minimal path set (MPS) safety analysis system diagram causality prevention control research effective measures safety assessment qualitative and quantitative method predict accident investigation results practical requirements find defects help |
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