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A Study Fuzzy model for Risk Analysis of Uncertainly FTA(Fault Tree Analysis)  

임총규 (명지대학교 산업공학과)
박주식 (명지대학교 산업공학과)
강경식 (명지대학교 산업공학과)
Publication Information
Journal of the Korea Safety Management & Science / v.4, no.1, 2002 , pp. 37-47 More about this Journal
Abstract
Risk analysis is a formal deductive procedure for determining combinations of component failures and human errors that could result in the occurrence of specified undesired events at the system level. This method can be used to analyze the vast majority of industrial system reliability problems. This study deals with the application of knowledge-engineering and a methodology for the assessment ＆ measurement of reliability, availability, maintainability, and safety of industrial systems using FTA(fault tree analysis), A fuzzy methodology for fault-tree evaluation seems to be an alternative solution to overcome the drawbacks of the conventional approach (insufficient Information concerning the relative frequencies of hazard events). To improve the quality of results, the membership functions must be approximated based on heuristic considerations, The purpose of this study is to describe the knowledge engineering approach, directed to integrate the various sources of knowledge involved in a FTA.
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