| 词条 | Event tree |
| 释义 |
An event tree displays sequence progression, sequence end states and sequence-specific dependencies across time.[2] Analytical toolEvent tree analysis is a logical evaluative process which works by tracing forward in time or forwards through a causal chain to model risk. It does not require the premise of a known hazard.[3] An event tree is an inductive investigatory process.[1]In contrast, the Fault tree analysis (FTA) evaluates risk by tracing backwards in time or backwards through a cause chain. The analysis takes as a premise a given hazard.[4] FTA is a deductive investigatory process.[5] ApplicationsAn event tree may start from a specific initiator such as loss of critical supply,[6] or component failure.[7] Some industries use both fault trees and event trees. Software has been created for fault tree analysis and event tree analysis and is licensed for use at the world's nuclear power plants for Probabilistic Safety Assessment. See also
Notes1. ^1 Wang, John et al. (2000). {{Google books|x4Ft7H_2Ik0C|What Every Engineer Should Know About Risk Engineering and Management, p. 69.|page=69}} 2. ^IAEA, "Accident sequence modelling," p. 3. 3. ^National Research Council. (2002). {{Google books|pIKrHQDY-mgC|Environmental Effects of Transgenic Plants: the Scope and Adequacy of Regulation, p. 5.|page=5}} 4. ^National Research Council, {{Google books|pIKrHQDY-mgC|p. 4.|page=4}} 5. ^Wang, {{Google books|x4Ft7H_2Ik0C|p. 58.|page=58}} 6. ^Compare Timeline of the Fukushima I nuclear accidents 7. ^Compare Northeast Blackout of 2003#Causes. References
5 : Quality|Reliability engineering|Risk analysis methodologies|Safety engineering|Systems engineering |
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