OS0511 SI-F法による疲労き裂同定における相関変動パターン(OS5-2 健全性評価・故障診断)

概要

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The present study is about an unsupervised damage diagnostic method for the structural health monitoring named as SI-F method. In the proposed method, structural condition is statistically evaluated by detecting the change of relation between measurement of several sensors. The relation between sensor measurements are identified by the response surface methodology. The change of the response surface is statistically investigated with the F-test. In this method, quantify between fatigue damage and test statistic F_0 enable more accurate diagnosis of structure. Present study conduct a evaluation of the effect of correlated change pattern via the SI-F method by simulated data and performing fatigue crack monitoring test via the SI-F method. As the result, the relation of F_<0A> and R^2_<adj> is basically inverse proportion curve, although when the fluctuation of amplitude of explained variable, it may change by degree of two explaining variable contribute of regression on 3 variable numbers and 2 dimensions.
社団法人日本機械学会の論文
2009-09-26