Abstract
Detection accuracy of bearing faults is crucial in saving economic loss for industrial applications. Deep learning is capable of producing high accuracy for bearing fault diagnosis; however, in most of existing deep-learning models such as a convolutional neural network (CNN) model or a deep forest (gcForest) model, the fault feature extraction process is ignored. In order to address this issue, this study develops a hybrid deep-learning model based on CNN and gcForest. In this new method, bearing vibration signals were converted into time-frequency images using the continuous wavelet transform (CWT). Then, CNN was used to extract intrinsic fault features from the images and feed them into a gcForest classifier. Experimental bearing data provided by Case Western Reserve University (CWRU) and Xi an Jiaotong University (XJTU-SY) were used to evaluate the performance of the proposed method. The analysis results demonstrated that the proposed hybrid deep learning model can achi
8 OBD2-Diagnosegeräte im Test (2021)
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Shanghai Electric veröffentlicht Jahresergebnisse 2020 und ebnet den Weg für eine CO2-neutrale Zukunft
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