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Fuzzy fault tree analysis of uncontained event for aero-engine rotor is performed. The theory of fuzzy fault tree analysis was introduced firstly. Then the fault tree of uncontained event for aero-engine rotor is established, in which the descending method is used to find minimal cut sets. Further more, the interval representation and calculation strategy is presented when the symmetrical L-R type...
The performance degradation data can provide useful information about the reliability assessment for highly reliable and long-lifetime products. Existing system-level degradation tests may encounter many difficulties in degradation model building and the test might be difficult to carry out. This paper introduces the concept “State value”, presents a system performance degradation state estimation...
System reliability modeling is one of the most important reliability modeling methods for satellite system. Based on the reliability characteristics of satellite system, we used reliability block diagram, fault tree, dynamic fault tree, Markov, and Monte Carlo modeling methods to build reliability models and summarize logic relationships of all kinds of modeling methods, the principle of choosing...
When the failure probability of a system is extremely small or necessary statistical data from the system is scarce, it is very difficult or impossible to evaluate its reliability and safety with conventional fault tree analysis (FTA) techniques. New techniques are needed to predict and diagnose such a system's failures and evaluate its reliability and safety. In this paper, we first provide a concise...
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