評価・診断に関するシンポジウム講演論文集
Online ISSN : 2424-3027
セッションID: 114
会議情報
114 非接触レーザー加振を用いた振動計測に基づくアルミニウム平板の損傷検知(セッション4 振動利用・回転機械診断)
伊藤 祥彰Feblil HUDA梶原 逸朗細矢 直基
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会議録・要旨集 フリー

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抄録
This paper proposes a health monitoring system for damage detection on plate structures based on the vibration measurement using laser excitation. Ideal impulse force can be applied to a plate by laser excitation. By this ideal impulse force, vibration measurement can be accomplished in wide frequency range. Mode shape is locally changed at the damaged position. In this study, mode shapes are extracted through the vibration measurement using two LDVs. Then, the location of damage is identified by applying wavelet transform to the mode shapes because the wavelet transform can detect a local change of the mode shapes.
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© 2014 一般社団法人 日本機械学会
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