OS0305 統計的無学習診断法に基づく損傷検出における破損確率の評価(OS3-1 ひずみ,OS-3 非破壊評価と構造モニタリング1)

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  • OS0305 Evaluation of the Probability of Failure for the Damage Detection via the Statistical Unsupervised Diagnosis

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This research is about method for evaluation of probability of failure to adopt the statistical unsupervised damage diagnostic for the risk based maintenance. By the diagnostic method, occurrence of the damage is diagnosed by statistical evaluation of the change of relation between measurement of several sensors. Therefore, diagnosis is conducted by means of only intact data and doesn't require information about the damaged condition. Generally, evaluation of probability of failure for the static equipment is conducted by the progress prediction of the damage based on the hazard data base. However, about the non static equipment, since the damage mode is not limited to predictable damage like corrosion, a lot of damage is caused accidentally. So evaluation of the reliability just from the prediction of the damage is difficult. Therefore, for the non static equipment, reliability evaluation based on the monitoring data is effective. Then in this research, the method to evaluate the probability of failure from the proposed damage diagnostic method is proposed and the validity of the method is experimentally confirmed.

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