FAULT DIAGNOSIS METHOD OF DIESEL ENGINE BASED ON PCA-EDT-CNN (MT)

Aiming at the problem that the vibration signal in diesel engine fault diagnosis is non-stationary and nonlinear, and the original signal is directly input into the Convolutional Neural Network(CNN) for fault diagnosis with poor effect, a new method based on PCA-EDT-CNN is proposed. Firstly, use Pri...

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Main Authors: BAI YunJie, JIA XiSheng, LIANG QingHai, MA YunFei, WEN Liang
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Strength 2022-01-01
Series:Jixie qiangdu
Subjects:
Online Access:http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.06.01
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author BAI YunJie
JIA XiSheng
LIANG QingHai
MA YunFei
WEN Liang
author_facet BAI YunJie
JIA XiSheng
LIANG QingHai
MA YunFei
WEN Liang
author_sort BAI YunJie
collection DOAJ
description Aiming at the problem that the vibration signal in diesel engine fault diagnosis is non-stationary and nonlinear, and the original signal is directly input into the Convolutional Neural Network(CNN) for fault diagnosis with poor effect, a new method based on PCA-EDT-CNN is proposed. Firstly, use Principal Component Analysis(PCA) to adaptively reduce the original data collected by the sensor, and construct a qualified Principal Component Eigenvector Matrix(PCEM); secondly, perform Euclidean Distance Transformation(EDT) on PCEM, calculate the Euclidean distance between each row and construct the Euclidean Distance Matrix(EDM); finally, flatten PCEM and EDM into one-dimensional vectors and synthesize a one-dimensional sample sequence, input into One-Dimensional Convolutional Neural Network(1 DCNN) to train and diagnosis the model. A diesel engine preset failure test bench was built to verify the effectiveness of the method, and through comparison with traditional methods, the results show that the method has high accuracy in diagnosing different fault states of diesel engines and has practical engineering application value.
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spelling doaj.art-b2ff2db647144f43b8e4957bd76e51d62023-08-01T07:54:50ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692022-01-011271127836350066FAULT DIAGNOSIS METHOD OF DIESEL ENGINE BASED ON PCA-EDT-CNN (MT)BAI YunJieJIA XiShengLIANG QingHaiMA YunFeiWEN LiangAiming at the problem that the vibration signal in diesel engine fault diagnosis is non-stationary and nonlinear, and the original signal is directly input into the Convolutional Neural Network(CNN) for fault diagnosis with poor effect, a new method based on PCA-EDT-CNN is proposed. Firstly, use Principal Component Analysis(PCA) to adaptively reduce the original data collected by the sensor, and construct a qualified Principal Component Eigenvector Matrix(PCEM); secondly, perform Euclidean Distance Transformation(EDT) on PCEM, calculate the Euclidean distance between each row and construct the Euclidean Distance Matrix(EDM); finally, flatten PCEM and EDM into one-dimensional vectors and synthesize a one-dimensional sample sequence, input into One-Dimensional Convolutional Neural Network(1 DCNN) to train and diagnosis the model. A diesel engine preset failure test bench was built to verify the effectiveness of the method, and through comparison with traditional methods, the results show that the method has high accuracy in diagnosing different fault states of diesel engines and has practical engineering application value.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.06.011DCNN;PCA;EDT;Diesel engine;Fault diagnosis
spellingShingle BAI YunJie
JIA XiSheng
LIANG QingHai
MA YunFei
WEN Liang
FAULT DIAGNOSIS METHOD OF DIESEL ENGINE BASED ON PCA-EDT-CNN (MT)
Jixie qiangdu
1DCNN;PCA;EDT;Diesel engine;Fault diagnosis
title FAULT DIAGNOSIS METHOD OF DIESEL ENGINE BASED ON PCA-EDT-CNN (MT)
title_full FAULT DIAGNOSIS METHOD OF DIESEL ENGINE BASED ON PCA-EDT-CNN (MT)
title_fullStr FAULT DIAGNOSIS METHOD OF DIESEL ENGINE BASED ON PCA-EDT-CNN (MT)
title_full_unstemmed FAULT DIAGNOSIS METHOD OF DIESEL ENGINE BASED ON PCA-EDT-CNN (MT)
title_short FAULT DIAGNOSIS METHOD OF DIESEL ENGINE BASED ON PCA-EDT-CNN (MT)
title_sort fault diagnosis method of diesel engine based on pca edt cnn mt
topic 1DCNN;PCA;EDT;Diesel engine;Fault diagnosis
url http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.06.01
work_keys_str_mv AT baiyunjie faultdiagnosismethodofdieselenginebasedonpcaedtcnnmt
AT jiaxisheng faultdiagnosismethodofdieselenginebasedonpcaedtcnnmt
AT liangqinghai faultdiagnosismethodofdieselenginebasedonpcaedtcnnmt
AT mayunfei faultdiagnosismethodofdieselenginebasedonpcaedtcnnmt
AT wenliang faultdiagnosismethodofdieselenginebasedonpcaedtcnnmt