Development of Compound Fault Diagnosis System for Gearbox Based on Convolutional Neural Network

Gear transmission is widely used in mechanical equipment. In practice, if the gearbox is damaged, it not only affects the yield rate but also damages other parts of machines; thus, increases the cost and difficulty of maintenance. With the advancement of technology, the concept of unmanned factories...

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Main Authors: Ming-Chang Lin, Po-Yu Han, Yi-Hua Fan, Chih-Hung G. Li
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/20/21/6169
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author Ming-Chang Lin
Po-Yu Han
Yi-Hua Fan
Chih-Hung G. Li
author_facet Ming-Chang Lin
Po-Yu Han
Yi-Hua Fan
Chih-Hung G. Li
author_sort Ming-Chang Lin
collection DOAJ
description Gear transmission is widely used in mechanical equipment. In practice, if the gearbox is damaged, it not only affects the yield rate but also damages other parts of machines; thus, increases the cost and difficulty of maintenance. With the advancement of technology, the concept of unmanned factories has been proposed; an automatic diagnosis system for the health management of gearboxes becomes necessary. In this paper, a compound fault diagnosis system for the gearbox based on convolutional neural network (CNN) is developed. Specifically, three-axis vibration signals measured by accelerometers are used as the input of the one-dimensional CNN; the detection of the existence and type of the fault is directly output. In testing, the model achieved nearly 100% accuracy on the fault samples we captured. Experimental evidence also shows that the frequency-domain data can provide better diagnostic results than the time-domain data due to the stable characteristics in the frequency spectrum. For practical usage, we demonstrated a remote fault diagnosis system through a local area network on an embedded platform. Furthermore, optimization of convolution kernels was also investigated. When moderately reducing the number of convolution kernels, it does not affect the diagnostic accuracy but greatly reduces the training time of the model.
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spelling doaj.art-6194d29299304dec8053689344a8f14e2023-11-20T19:04:16ZengMDPI AGSensors1424-82202020-10-012021616910.3390/s20216169Development of Compound Fault Diagnosis System for Gearbox Based on Convolutional Neural NetworkMing-Chang Lin0Po-Yu Han1Yi-Hua Fan2Chih-Hung G. Li3Department of Mechanical Engineering, Chung Yuan Christian University, Taoyuan 32023, TaiwanDepartment of Mechanical Engineering, Chung Yuan Christian University, Taoyuan 32023, TaiwanDepartment of Mechanical Engineering, Chung Yuan Christian University, Taoyuan 32023, TaiwanGraduate Institute of Manufacturing Technology, National Taipei University of Technology, Taipei 10608, TaiwanGear transmission is widely used in mechanical equipment. In practice, if the gearbox is damaged, it not only affects the yield rate but also damages other parts of machines; thus, increases the cost and difficulty of maintenance. With the advancement of technology, the concept of unmanned factories has been proposed; an automatic diagnosis system for the health management of gearboxes becomes necessary. In this paper, a compound fault diagnosis system for the gearbox based on convolutional neural network (CNN) is developed. Specifically, three-axis vibration signals measured by accelerometers are used as the input of the one-dimensional CNN; the detection of the existence and type of the fault is directly output. In testing, the model achieved nearly 100% accuracy on the fault samples we captured. Experimental evidence also shows that the frequency-domain data can provide better diagnostic results than the time-domain data due to the stable characteristics in the frequency spectrum. For practical usage, we demonstrated a remote fault diagnosis system through a local area network on an embedded platform. Furthermore, optimization of convolution kernels was also investigated. When moderately reducing the number of convolution kernels, it does not affect the diagnostic accuracy but greatly reduces the training time of the model.https://www.mdpi.com/1424-8220/20/21/6169gearboxconvolutional neural networkaccelerometersremote fault diagnosisconvolution kernels
spellingShingle Ming-Chang Lin
Po-Yu Han
Yi-Hua Fan
Chih-Hung G. Li
Development of Compound Fault Diagnosis System for Gearbox Based on Convolutional Neural Network
Sensors
gearbox
convolutional neural network
accelerometers
remote fault diagnosis
convolution kernels
title Development of Compound Fault Diagnosis System for Gearbox Based on Convolutional Neural Network
title_full Development of Compound Fault Diagnosis System for Gearbox Based on Convolutional Neural Network
title_fullStr Development of Compound Fault Diagnosis System for Gearbox Based on Convolutional Neural Network
title_full_unstemmed Development of Compound Fault Diagnosis System for Gearbox Based on Convolutional Neural Network
title_short Development of Compound Fault Diagnosis System for Gearbox Based on Convolutional Neural Network
title_sort development of compound fault diagnosis system for gearbox based on convolutional neural network
topic gearbox
convolutional neural network
accelerometers
remote fault diagnosis
convolution kernels
url https://www.mdpi.com/1424-8220/20/21/6169
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AT poyuhan developmentofcompoundfaultdiagnosissystemforgearboxbasedonconvolutionalneuralnetwork
AT yihuafan developmentofcompoundfaultdiagnosissystemforgearboxbasedonconvolutionalneuralnetwork
AT chihhunggli developmentofcompoundfaultdiagnosissystemforgearboxbasedonconvolutionalneuralnetwork