109 マハラノビス距離を用いた平板のき裂同定(OS2-(1)オーガナイズドセッション《材料強度と構造設計》)

概要

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If a crack exists in a material, it may cause a serious accident. To prevent the accident, the early crack detection is crucially important. In our previous study, we have succeeded in detecting a crack in a plate using the change of natural frequencies. In present study, by using the Mahalanobis distance method, we propose a new method which identify simultaneously the position and the length of the crack. Mahalanobis distance method is a useful way of determining similarity of an unknown sample set to a known one. Through the identify results, we demonstrate the validity of our approach.
一般社団法人日本機械学会の論文
2011-08-26