fault tree


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fault tree

[′fȯlt ‚trē]
(industrial engineering)
A graphical representation of an undesired event caused by a combination of factors arising from equipment failure, human error, or environmental events.
References in periodicals archive ?
Rationalising the Fault tree in this manner has enabled the input of probability data.
Railsback, Fault tree Handbook with Aerospace Applications, Version 1.1., NASA Office of Safety and Mission Assurance, NASA HQ, http://www.hq.nasa.gov/office/codeq/doctree/fthb.pdf, (August 2002) [Accessed (October 22, 2015)].
One approach to alleviate this problem is to model the system failure condition using a Fault Tree model but adjust the inputs to the FT.
Based on fault tree in fig 5 can be determined with an equation Boolean logic in the following:
The second objective of this study was to use the fault tree as a basis for completing a quantitative assessment of risk.
Process FMEA provides information to design FMEA for fault tree analysis.
For this purpose, the decision tree is alternatively represented as a fault tree.
It's validated by using fault tree analysis that pairs with the decision tree to understand if the machine takes the wrong path based on input data.
In this phase, the architectural design of the various functions is not yet fixed, therefore an algorithm for automated ASIL assignment considering constraints based on a fault tree analysis is introduced.
It consists of a set of an event sequence diagram (ESD) and a fault tree (FT) for capturing specific scenarios.
The structure and relationship of components are complicated in rotary complex machines, and the graphical construction of (BN) can be tedious and difficult, a fault tree is considered to simplify determining causality between components.

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