Fault Tree Analysis is a well-known method for reliability evaluation of systems. However, manual construction of fault trees is a tedious and time-consuming task. Thus, many researchers tried to get benefit of high speed and accuracy of digital computers to automate this process. Automated construction of fault trees can be very useful in system reliability analysis, especially in design step,...

By using the theory of artificial intelligence fault diagnosis of hydraulic excavator of several basic problems are discussed in this paper, the artificial intelligence neural network model is established for the fault diagnosis of hydraulic system; the combined application of fault diagnosis analysis (FTA) and artificial neural network is evaluated. In view of the hydraulic excavator failure s...

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 ...

Fault tolerant systems comprise of subsystems that interact with each other in complex ways [Joh89]. As a result, modeling the reliability of these systems calls for sophisticated analytical techniques. A powerful technique to address this issue is dynamic fault tree analysis [Dug92]. But because the semantics on which Dynamic Fault Trees are based are themselves complex, there was a question o...

System reliability analysis refers to the evaluation of the reliability of a system based on the reliabilities of its elements. Several methods can be applied to the system reliability analysis, such as reliability graph, fault tree analysis, Markov chain, and Monte Carlo simulation. Each method has its own characteristics, merits and demerits. Among the existing methods, the fault tree analysi...

In train control systems, more and more (electro-)mechanical devices are substituted by software based devices. To sustain the high level safety standards for these embedded systems, we propose the integration of fault tree analysis and formal methods. This combines two important safety analysis methods from the involved domains of engineering and software development. Our approach proposes to ...

In embedded systems development safety and reliability are important quality characteristics. Fault tree analysis is often used to determine these characteristics. Generalized fault trees improve the readability and thus prevent the insertion of bugs, e.g., during manual modification. Fault tree analyses are usually performed manually. Taking into account the high complexity of large, technical...

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