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- W2893973212 abstract "Traditional structural health monitoring (SHM) techniques are vulnerable to factors such as temperature change and vibration noise that are not relevant to structural damages. To overcome these drawbacks, this paper develops a reference-free crack detection method based on Lamb wave mode conversion. Neither baseline data nor damage threshold is required in this method. According to PZT polarization characteristics, feature signals which contained crack-lead Lamb wave converted modes are obtained from PZT components of two sets of side-by-side, and their amplitudes are obtained in the frequency domain to represent signal energy. Whether there being a crack is judged by comparing energy of each feature signal. Simulation and experiments show that the proposed method is not sensitive to optimal excitation frequency and sampling time, therefore it has strong robustness and applicability." @default.
- W2893973212 created "2018-10-05" @default.
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- W2893973212 date "2013-01-01" @default.
- W2893973212 modified "2023-09-22" @default.
- W2893973212 title "Lamb wave mode conversion-based crack detection for plate-like structures without baseline information" @default.
- W2893973212 hasPublicationYear "2013" @default.
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