Common Cause Failure Analysis—Why Interlocked Redundant Systems Fail

800631

04/01/1980

Event
Turbine Powered Executive Aircraft Meeting
Authors Abstract
Content
Studies of operating experiences over the last two decades have shown an increase in the number of operating incidents attributed to multiple failures as opposed to the classical case of single failures.
This paper presents an overview of a unique approach that has recently been developed to address susceptibility of electrical control systems to combined multiple failures of components and operators. The philosophical requirement for the approach will be discussed, and insight into the evolution of the technique will be provided. The approach will be described in terms of system safety and reliability tools in an integrated mix coupled with a logical process of identifying possible causative factors for the multiple failures. The technique also identifies specific points of system susceptibility to the causative mechanisms and suggests the capability for design avoidance considerations. An example will be given to illustrate the type of electrical problems addressed.
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DOI
https://doi.org/10.4271/800631
Pages
8
Citation
Rankin, J., "Common Cause Failure Analysis—Why Interlocked Redundant Systems Fail," SAE Technical Paper 800631, 1980, https://doi.org/10.4271/800631.
Additional Details
Publisher
Published
Apr 1, 1980
Product Code
800631
Content Type
Technical Paper
Language
English