2021
DOI: 10.3390/s21238054
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Classification of Chaotic Squeak and Rattle Vibrations by CNN Using Recurrence Pattern

Abstract: The chaotic squeak and rattle (S&R) vibrations in mechanical systems were classified by deep learning. The rattle, single-mode, and multi-mode squeak models were constructed to generate chaotic S&R signals. The repetition of nonlinear signals generated by them was visualized using an unthresholded recurrence plot and learned using a convolutional neural network (CNN). The results showed that even if the signal of the S&R model is chaos, it could be classified. The accuracy of the classification was… Show more

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Cited by 10 publications
(4 citation statements)
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“…12C). Either the CNN is trained to classify different RPs [129][130][131][132], or to predict time series values [115]. Such combinations of RPs and RQA measures with machine learning were successfully applied for transition detection, monitoring, and anomaly detection [80,[133][134][135][136].…”
Section: Recurrence and Machine Learningmentioning
confidence: 99%
“…12C). Either the CNN is trained to classify different RPs [129][130][131][132], or to predict time series values [115]. Such combinations of RPs and RQA measures with machine learning were successfully applied for transition detection, monitoring, and anomaly detection [80,[133][134][135][136].…”
Section: Recurrence and Machine Learningmentioning
confidence: 99%
“…From a machine learning perspective, each set of measurement vectors is a labeled sample. Based on previous studies [56][57][58] and our own experience, it was determined that the number of samples was not sufficient to prepare a machine learning model. This situation is very common in real industrial systems in which the amount of data is limited.…”
Section: Recorded Data Preprocessingmentioning
confidence: 99%
“…The samples for the testing set were selected at random; however, the proportions of individual categories (reliability states) were maintained as they existed in the total set. To check whether the selection maintained the correct category distribution, the Based on previous studies [56][57][58] and our own experience, it was determined that the number of samples was not sufficient to prepare a machine learning model. This situation is very common in real industrial systems in which the amount of data is limited.…”
Section: Recorded Data Preprocessingmentioning
confidence: 99%
“…Research efforts have demonstrated that CNNs are effective in studies and applications involving chaotic signals, such as chaotic biomedical signal analysis, speech processing, and chaos identification systems [48][49][50]. Moreover, the selection of CNNs allows us to gain useful theoretical insight into the proposed system.…”
Section: Cnn-based Receivermentioning
confidence: 99%