Integrated system fault diagnostics utilising digraph and fault tree-based approaches

Integrated system fault diagnostics utilising digraph and fault tree-based approaches

Institutional Repository System fault diagnostics using fault tree analysis

Over the last 50 years advances in technology have led to an increase in the complexity and sophistication of systems. More complex systems can be harder to maintain and the root cause of a fault more difficult to isolate. Down-time resulting from a system failure can be dangerous or expensive depending on the type of system. In aircraft systems the ability to quickly diagnose the causes of a f...

Study on Transformer Fault Diagnosis Based on Dynamic Fault Tree

In this paper, according to theoretical diagnosis of fault tree, the author builds a diagnosis model based on dynamic fault tree and illustrates the model’s construction method and diagnosis logic in detail. According to case analysis, compared with conventional fault tree diagnosis, the above-mentioned method is advanced in fault-tolerant ability. Plus, the diagnosis results record some interm...

Systems Failure and Safety Assessment Using Integrated Petri Net Modeling and Fault Tree Analysis Approaches

Current methods in combining Petri net modeling with fault tree analysis for systems failure and safety assessment assume that the failure rates of the basic events in a system are the same and the Petri net model of the system consists of only simple structures. These assumptions do not reflect the real industrial applications for system failure and safety analysis. To overcome the limitations...

Bayes Networks and Fault Tree Analysis Application in Reliability Estimation (Case Study: Automatic Water Sprinkler System)

In this study, the application of Bayes networks and fault tree analysis in reliability estimation have been investigated. Fault tree analysis is one of the most widely used methods for estimating reliability. In recent years, a method called "Bayes Network" has been used, which is a dynamic method, and information about the probable failure of the system components will be updated according to...