1314 橋梁構造の健全性診断に対する統計的無学習損傷診断手法(SI-F法)の適用(J14-3 知的材料・構造システム(3) 計測・モニタリングII,ジョイントセッション,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

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 statistically diagnoses structural condition by means of investigating the change of a response surface. The response surface is calculated as a regression model of relationship between multiple sensors. In this method, the change of the response surface is statistically investigated with the F-test. The proposed method doesn't require information about the damaged condition. And the each sensor measurement doesn't need to be same physical quantity an order. In the present study, SI-F method is applied to fatigue monitoring of bridge type specimen. Damage detection using SI-F is conducted from the data measured by the strain gages, the FBGs and the accelerometers. As the result, the origin of the fatigue crack is successfully detected by using arbitrary combination of the sensors.
2008-08-02