The Double Synchroextracting and Complex Shifted Morlet Wavelet-Based Application for Bearing Faults Diagnosis Under Varying Speed

2021 ◽  
Author(s):  
Ran Zhang ◽  
Xingxing Liu ◽  
Yongjun Zheng ◽  
Haotun Lv ◽  
Baosheng Li ◽  
...  
Keyword(s):  
Morlet Wavelet ◽  
Bearing Faults ◽  
Faults Diagnosis

Research on Shearer Rocker Gearbox Fault Location Based on Wavelet Envelope Demodulation

2014 ◽  
Vol 528 ◽  
pp. 210-216
Author(s):  
Zeng Qiang Wang ◽  
Hong Wei Ma ◽  
Mei Hua Tao ◽  
Xu Hui Zhang ◽  
Qing Hua Mao
Keyword(s):  
Fourier Transform ◽  
Frequency Spectrum ◽  
Spectrum Analysis ◽  
Fault Location ◽  
Vibration Signal ◽  
Morlet Wavelet ◽  
Frequency Spectrum Analysis ◽  
Mechanical Faults ◽  
Faults Diagnosis ◽  
Feature Frequency

To solve the problem of faults location for shearer rocker gearbox, the multiple sites vibration signal of faulty rocker gearbox are collected, as well as the Morlet wavelet envelope demodulation is applied to demodulate vibration signal and Fourier transform is used to carry out frequency spectrum analysis of vibration signal. Experimental results show that this method can effectively extract the faults feature frequency from complex vibration signal. The faults location result is consistent with actual faults part. This mean realizes to locate faults accurately. It provides an effective method for mechanical faults diagnosis of shearer.

scholarly journals Generalized Roughness Bearing Faults Diagnosis Based on Induction Motor Stator Current

2018 ◽  
Vol 27 (4) ◽  
pp. 1166-1173 ◽  
Author(s):  
I. Andrijauskas ◽  
M. Vaitkunas ◽  
R. Adaskevicius
Keyword(s):  
Induction Motor ◽  
Bearing Faults ◽  
Stator Current ◽  
Faults Diagnosis

Rolling element bearing faults diagnosis based on autocorrelation of optimized: wavelet de-noising technique

2009 ◽  
Vol 40 (3-4) ◽  
pp. 393-402 ◽  
Author(s):  
Khalid F. Al-Raheem ◽  
Asok Roy ◽  
K. P. Ramachandran ◽  
D. K. Harrison ◽  
Steven Grainger
Keyword(s):  
Rolling Element Bearing ◽  
Bearing Faults ◽  
Rolling Element ◽  
Element Bearing ◽  
Faults Diagnosis

Induction motor bearing faults diagnosis using Root-AR approach: simulation and experimental validation

2017 ◽  
Vol 100 (3) ◽  
pp. 1555-1564 ◽  
Author(s):  
Ameur Fethi Aimer ◽  
Ahmed Hamida Boudinar ◽  
Noureddine Benouzza ◽  
Azeddine Bendiabdellah
Keyword(s):  
Induction Motor ◽  
Experimental Validation ◽  
Bearing Faults ◽  
Faults Diagnosis ◽  
Motor Bearing
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