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3.1.3 An Optimization Strategy for Allocating Fault Detection and Fault Isolation Requirements
Author(s) -
Carson Ronald S.
Publication year - 1998
Publication title -
incose international symposium
Language(s) - English
Resource type - Journals
ISSN - 2334-5837
DOI - 10.1002/j.2334-5837.1998.tb00016.x
Subject(s) - fault detection and isolation , reliability engineering , isolation (microbiology) , fault (geology) , computer science , fault coverage , real time computing , engineering , biology , paleontology , electronic circuit , microbiology and biotechnology , electrical engineering , artificial intelligence , actuator
To support system maintenance, most deployed systems require some level of fault detection and fault isolation (FD/FI), often expressed as a percentage of faults detected, with a given rate or confidence‐level of fault isolation to a single, replaceable unit. In contrast to the usual method of allocating the identical FD or FI requirements to every replaceable unit, we propose a revised allocation method that optimizes system effectiveness (satisfying requirements for minimum cost). The resulting allocation both satisfies the system FD/FI requirements and provides an optimum solution over all elements of the system by considering the effect of varying failure rates for individual replaceable units.