Damage detection using modal frequency curve and squared residual wavelet coefficients-based damage indicator

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• 作者：Chen Yang ^{chen.yang@manchester.ac.uk" class="auth_mail" title="E-mail the corresponding author} ; S. Olutunde Oyadiji ; ^{s.o.oyadiji@manchester.ac.uk" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Damage detection ; Modal frequency curve ; Discrete wavelet transform ; Squared residual damage indicator
• 刊名：Mechanical Systems and Signal Processing
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：83
• 期：Complete
• 页码：385-405
• 全文大小：8137 K

文摘

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d="p0005">The theoretical basis of the modal frequency curve method is established.

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d="p0010">Extraction of defect features from frequency curve via wavelet decomposition shown.

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d="p0015">New multiple-mode wavelet-based squared residual damage indicator is proposed.

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d="p0020">Damage size estimator based on standard deviation of the indicator is presented.

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d="p0025">Damage indicator gives a more robust and unambiguous damage identification.

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