保守管理 のためのリスク可視化手法の開発
Development of Visualization Method of Risk for Maintenance Management
著者:
小嶋 正義 Masayoshi KOJIMA 高橋 秀治 Hideharu TAKAHASHI 内田 俊介 Shunsuke UCHIDA 岡田 英俊 Hidetoshi OKADA 木倉 宏成 Hiroshige KIKURA
発刊日:
公開日:
Failure Mode and Effect AnalysisMaintenance ManagementProbabilistic Fracture MechanicsRisk CommunicationVisualization
概要
In order to improve safety of major equipments in nuclear power plants, an advanced FMEA (Failure Mode and Effect Analysis) was developed which was integrated PFM (probabilistic fracture mechanics) into the proven FMEA by evaluating the risk priority number in maintenance management based on a trio of anomaly occurrences in equipments (O), their severity (S) and their detectability (D). The results of equipement risk evaluation were visualized by evaluating the triangle area in the radar chart of three parameters, O, S and D for the risk communication between stakeholders and plant utilities. As a result of demonstration evaluation, it was concluded that the advanced FMEA prepared for important information on the priority in maintenance management, and then, easy-understandable information on the situation of plant equipments.
