Transcription of Fault Tree Analysis
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Fault Tree Analysis
Fault Tree Analysis Clifton A. Ericson II. 1 C. Ericson 1999. Fault Tree Analysis Clifton A. Ericson II. Sept. 2000. or 2 C. Ericson 1999. Fault Tree Analysis Outline n Overview n History n Basic Process n Definitions n Construction n Mathematics n Evaluation n Pitfalls n Rules n Examples 3 C. Ericson 1999. Fault Tree Analysis FTA Overview 4 C. Ericson 1999. Introduction To design systems that work correctly we often need to understand and correct how they can go wrong.. Dan Goldin, NASA Administrator, 2000. FTA identifies, models and evaluates the unique interrelationship of events leading to : Failure Undesired Events / States Unintended Events / States 5 C.
nutilizes Boolean Algebra, probability theory, reliability theory, logic nfollows the laws of physics, chemistry and engineering A picture is worth a 1,000 words! ... lA logic operator combining input nodes lA gate that permits or inhibits fault logic up the tree lFive basic types nAND, OR, Inhibit, ...
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