2302 運行立証寿命解析による疲労破壊の実機検証(メンテナンス・信頼性・モニタリング,OS6 メンテナンス・信頼性・モニタリング)

概要

論文の詳細を見る
In the Boeing's ordinary procedure, to compute the structural fatigue life is outlined in this report's Section 2. As criteria outlined in this report, there are test data reduction factors (to say Confidence factor K_r, and Reliability factor K_R) which were selected to compute structural fatigue lives with traditional levels of Confidence (95%) and Reliability (95%). In current Boeing's structural fatigue analysis of the 747-400SR was conducted a new criterion. Those criteria define the service life that the aircraft primary structure should meet with a minimum of structural maintenance due to fatigue. In this article, the structure demonstrated fatigue life has been analysed with 95% Confidence for 95% Reliability with additional Fatigue Reliability Factor of 1.5. The fleet fatigue life for ordinary airplane's structure were compared with the traditional method, and obtained the satisfactory results.
社団法人日本機械学会の論文
2007-12-12