Decision table development and application to the construction of fault trees
A systematic methodology for the construction of fault trees based on the use of decision tables has been developed. These tables are used to describe each possible output state of a component as a set of combinations of states of inputs and internal operational or T states. Two methods for modeling component behavior via decision tables have been developed, one inductive and one deductive. These methods are useful for creating decision tables that realistically model the operational and failure modes of electrical, mechanical, and hydraulic components as well as human interactions inhibit conditions and common-cause events. A computer code CAT (Computer Automated Tree) has been developed to automatically produce fault trees from decision tables. A simple electrical system was chosen to illustrate the basic features of the decision table approach and to provide an example of an actual fault tree produced by this code. This example demonstrates the potential utility of such an automated approach to fault tree construction once a basic set of general decision tables has been developed.
- Research Organization:
- Univ. of California, Los Angeles
- OSTI ID:
- 6399622
- Journal Information:
- Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 42:1; ISSN NUTYB
- Country of Publication:
- United States
- Language:
- English
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Computer-oriented approach to fault-tree construction. [Computer Automated Tree (CAT) code]
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Related Subjects
220900* -- Nuclear Reactor Technology-- Reactor Safety
ALGORITHMS
DECISION TREE ANALYSIS
ELECTRICAL EQUIPMENT
ENGINEERED SAFETY SYSTEMS
EQUIPMENT
FAULT TREE ANALYSIS
MATHEMATICAL LOGIC
NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
POWER PLANTS
REACTOR COMPONENTS
RELIABILITY
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
THERMAL POWER PLANTS