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Naji, M. |
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Motta, Antonella |
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Azevedo, Nuno Monteiro |
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Jantzen, Senta L.
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Identifying mechanical vibration modes of a cantilever using spectrally multiplexed Bragg gratings and machine learning
Abstract
In this paper, we demonstrated the use of the k-Nearest Neighbor, a machine learning algorithm, to identify mechanical vibration modes of a cantilever beam in a frequency range between 40-300 Hz at an accelerations of 1.1±0.1 g. We attached fiber Bragg gratings to the cantilever structure and analyzed the spectral response during vibration.We observe small increases in spectral bandwidth of three Bragg gratings to perform a 3-dimensional classification environment and evaluated the accuracy of the algorithm with independent testing data.