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Reliability of sequential systems using the cause-consequence diagram method
preprint
posted on 2006-01-31, 17:41 authored by L.M. Ridley, J.D. AndrewsIn many industrial systems, where safety is of the utmost importance, it is necessary
that expedient tools for accident analysis are available and employed at the design
stage. Such tools must be able to handle large systems in a systematic way and
display the factors that are of vital importance for the functionality of the system.
The technique of fault tree analysis is commonly used to assess the failure probability
of such systems. The fault tree represents the failure logic of the system in an
inverted tree structure and has the advantage that it provides very good documentation
of the way the failure logic was developed. Conventional fault tree quantification
requires a number of assumptions regarding the system. One of these is that the basic
events in the tree occur independently. This condition is not satisfied when sequential
failures are encountered. Employing alternative methods, such as Markov methods,
can result in the loss of the documentation that represents the failure logic of the
system.
History
School
- Science
Department
- Mathematical Sciences
Pages
191304 bytesPublication date
2001Notes
This is a pre-print.Language
- en