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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The theoretical basis of the modal frequency curve method is established.
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Extraction of defect features from frequency curve via wavelet decomposition shown.
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New multiple-mode wavelet-based squared residual damage indicator is proposed.
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Damage size estimator based on standard deviation of the indicator is presented.
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Damage indicator gives a more robust and unambiguous damage identification.
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