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Program for the Analysis of Fault Trees. [PDF]
Abstract : Document describes PAFT F77, a program for the analysis of fault trees coded in Fortran 77. Given the structure of a fault tree and the probability or failure rates of its basic events, PAFT F77 calculates the probabilities of the top and all intermediate events, as well as the marginal importances of all basic events.
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Delay times in fault tree analysis
Microelectronics Reliability, 1982Abstract In reliability analysis of technical systems the failure frequency of cut sets alone is often insufficient to assess the probability of an undesired event. In many systems an undesired event occurs after failures of system elements, however not before a limited time period is over.
L. Camarinopoulos, Axel Becker
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Multistate fault-tree analysis
Reliability Engineering & System Safety, 1990Abstract The recursive pivotal decomposition algorithm is a quantitative analysis method of binary fault-tree. In this article, the algorithm will be applied to the multistate case. As a result, a practical method of quantitative analysis of multistate fault-trees is given.
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The use of not logic in fault tree analysis [PDF]
AbstractRisk and safety assessments carried out on potentially hazardous industrial systems commonly employ fault tree analysis to predict the probability or frequency of system failure. Causes of the system failure mode are developed in an inverted tree structure where the events are linked using logic gates. The type of logic is usually restricted to
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Fault-class-aware fault tree generation and analysis
2013 IEEE International Symposium on Software Reliability Engineering Workshops (ISSREW), 2013Over decades, fault-tree has remained as one of the most widely used fault management (FM) mechanisms by practitioners as a visualization/communication media, as well as a quantitative analysis tool for building dependable systems. Nonetheless, to date fault tree analysis is often unable to provide us with high-confidence results due to potential ...
Ann T. Tai+3 more
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Effective Static and Dynamic Fault Tree Analysis
2016Fault trees constitute one of the essential formalisms for static safety analysis of various industrial systems. Dynamic fault trees (DFT) enrich the formalism by support for time-dependent behaviour, e.g., repairs or dynamic dependencies. This enables more realistic and more precise modelling, and can thereby avoid overly pessimistic analysis results.
Bäckström, Ola+4 more
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Fault tree analysis with fuzzy gates
Computers & Industrial Engineering, 1997Abstract Fault tree analysis is an important tool analyzing system reliability. Fault trees consist of gates and events. Gates mean relationships between events. In fault tree analysis, AND, OR gates have been used as typical gates but it is often difficult to model the system structure with the two gates because in many cases we have not exact ...
HanSuk Pan, Won Young Yun
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Fault-tree analysis of intermittent events
International Journal of Systems Science, 1986This paper presents a bottom-up methodology for sequential reduction of fault tree end-branches with intermittent events. The methodology can be used in conjunction with ordinary events with permanent state change.
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