Event Oriented Analysis of Series Structural Systems (CROSBI ID 138812)
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Žiha, Kalman
engleski
Event Oriented Analysis of Series Structural Systems
The event oriented analysis of technical objects is in general accomplished by representing them as complete or incomplete systems and subsystems of events. It is argued in the article how the compound engineering systems of events can be partitioned by inclusion-exclusion expansion into individual and common cause modes. The event analysis is based on the random variable model and employs the results of operational modes and effect analysis, of the reliability analysis and of the uncertainty analysis. The system redundancy and robustness are considered as uncertainties, due to the fact that really a number of events are possible, expressed by the entropy concept in probability theory, conditioned by operational and failure modes, respectively. Relative and average uncertainty measures are introduced to Facilitate uncertainty interpretations in engineering problems. It is investigated how the sensitivity analysis of reliability measures can be applied to the assessments of system uncertainties. Numerical examples presented in the article illustrate the application of event oriented system analysis to series structural systems with common cause failures. Additionally, system performance presentation and optimization with constraints, as well as potential improvements ins ; stem analysis, design and maintenance are investigated. (C) 2001 Elsevier Science Ltd. All rights reserved.
engineering; mechanics; system analysis; structural system; system of events; event oriented system analysis; probability; reliability; entropy; information; uncertainty; series systems; redundancy; Robustness; optimization; sensitivity analysis; AFORM; SORM; Monte-Carlo simulation
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