期刊
出版社
SPRINGER-VERLAG BERLIN
DOI: 10.1007/978-3-319-07013-1_24
关键词
Dependability Analysis; Fault Tree Analysis; Fuzzy Logic; Uncertainty analysis; Temporal Fault Trees
Fault tree analysis (FTA) has been modified in different ways to make it capable of performing quantitative and qualitative safety analysis with temporal gates, thereby overcoming its limitation in capturing sequential failure behaviour. However, for many systems, it is often very difficult to have exact failure rates of components due to increased complexity of systems, scarcity of necessary statistical data etc. To overcome this problem, this paper presents a methodology based on fuzzy set theory to quantify temporal fault trees. This makes the imprecision in available failure data more explicit and helps to obtain a range of most probable values for the top event probability.
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