POD 法による配管減肉検査の信頼性評価法と ハザードレートへの適用
英字タイトル:
Reliability assessment for thickness measurements of pipe wall using probability of detection and application to hazard rate
著者:
中本 裕之 Hiroyuki NAKAMOTO 小島 史男 Fumio KOJIMA 加藤 翔 Sho KATO
発刊日:
公開日:
hazard ratepipe-wall thickness measurementprobability of detectionreliability assessment
Reliability assessment for thickness measurements of pipe wall using probability of detection and application to hazard rate
著者:
中本 裕之 Hiroyuki NAKAMOTO 小島 史男 Fumio KOJIMA 加藤 翔 Sho KATO
発刊日:
公開日:
カテゴリ: 第10回
キーワードタグ:hazard ratepipe-wall thickness measurementprobability of detectionreliability assessment
概要
This paper proposes a method of applying a reliability of inspection data to a calculation of hazard rate. First, the probability of detection (POD) is calculated from inspection data of thickness measurement of pipe wall by an ultrasonic thickness meter. The inspection data are collected from experiments by qualified or unqualified inspectors. The POD outputs probabilities of reliability assessment based on the inspection data. Second, the probabilities are used for a timing estimation of pipe hazard. The estimation stochastically fuses the results of inspection and prediction. The effectiveness of the fusion is confirmed from the experimental results.
