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Title: MIRAP, microcomputer reliability analysis program

Technical Report ·
DOI:https://doi.org/10.2172/6138642· OSTI ID:6138642

A program for a microcomputer is outlined that can determine minimal cut sets from a specified fault tree logic. The speed and memory limitations of the microcomputers on which the program is implemented (Atari ST and IBM) are addressed by reducing the fault tree's size and by storing the cut set data on disk. Extensive well proven fault tree restructuring techniques, such as the identification of sibling events and of independent gate events, reduces the fault tree's size but does not alter its logic. New methods are used for the Boolean reduction of the fault tree logic. Special criteria for combining events in the 'AND' and 'OR' logic avoid the creation of many subsuming cut sets which all would cancel out due to existing cut sets. Figures and tables illustrates these methods. 4 refs., 5 tabs.

Research Organization:
EG and G Idaho, Inc., Idaho Falls, ID (United States)
DOE Contract Number:
AC07-76ID01570
OSTI ID:
6138642
Report Number(s):
EGG-SSRE-8137; ON: DE89009749
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English