ファジィー対比較法を適用したフォールトツリーの主観的重要度解析について

概要

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FTA (Fault Tree Analysis) is used for reliability and safaty analysis of system. In FTA, the critical importance of each fundamental event is defined in order to control occurrence of top event effectively. To calculate critical importance, it is necessary to get occurrence probability of allfundamental events. However, it is hard to get these probabilities. Therefore, it has bees proposed to estimate relative occurrence probabilities of all fundamental events by pairwise comparison method with eigenvector. In this paper, we have proposed a method for estimating subjectively critical importance by fuzzy pairwise comparison method. Furthermore, this method is applied to safety analysis of a bucket elevator. Consequently, the priority of action required to fundamental events contained in the fault tree has become dear.
社団法人日本機械学会の論文
1999-07-25