Evaluation of the use of envelope analysis and DWT on AE signals generated from degrading shafts

Gu, Dong-Sik; Kim, Jaegu; Tulugan, Kelimu; Huh, Sun-Chul; Choi, Byeong-Keun

doi:10.1016/j.mseb.2012.03.001

Cited by 17 publications

(8 citation statements)

References 13 publications

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“…MRA has been also applied to detect cracks growing in shafts using AE [23]. Specifically, envelope analysis combined with MRA has been applied with very good results.…”

Section: Multiresolution Analysismentioning

confidence: 99%

Review of Recent Advances in the Application of the Wavelet Transform to Diagnose Cracked Rotors

2016

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Wavelet transform (WT) has been used in the diagnosis of cracked rotors since the 1990s. At present, WT is one of the most commonly used tools to treat signals in several fields. Understandably, this has been an area of extensive scientific research, which is why this paper aims to summarize briefly the major advances in the field since 2008. The present review considers advances in the use and application of WT, the selection of the parameters used, and the key achievements in using WT for crack diagnosis.

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“…MRA has been also applied to detect cracks growing in shafts using AE [23]. Specifically, envelope analysis combined with MRA has been applied with very good results.…”

Section: Multiresolution Analysismentioning

confidence: 99%

Review of Recent Advances in the Application of the Wavelet Transform to Diagnose Cracked Rotors

2016

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“…Recently, WT-based envelope analysis has been used to address these issues (Gu, Kim, Kelimu, Huh, & Choi, 2012;Kim, Gu, Kim, Kim, & Choi, 2010). Although Gu et al (2012) and Kim et al (2010) achieved satisfactory performance in terms of capturing the defect frequencies (or characteristic frequencies) of low-speed rolling element bearing failures, they did not consider the impact of sub-bands. Hence, this study quantitatively explores the effect of a set of subbands with regard to condition monitoring performance.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“… Methodology 1 (Gu, Kim, Kelimu, Huh, & Choi, 2012): In 2012, Gu et al (2012) investigated an efficient envelope analysis using the power of discrete wavelet transform to monitor the state of degrading shafts and showed satisfactory performance for condition monitoring.…”

Section: Performance Evaluationmentioning

confidence: 99%

Robust condition monitoring of rolling element bearings using de-noising and envelope analysis with signal decomposition techniques

Nguyen

Kang

Kim

et al. 2015

Expert Systems with Applications

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“…al. [3], an AE sensor is used to capture the AE signals generated caused due to crack growth on a rotating shaft. The preprocessing of the AE signatures were done using the signal processing method proposed in the paper.…”

Section: Introductionmentioning

confidence: 99%

Condition Monitoring of Cooling Tower Fans using the Envelope Technique

Pai¹,

Girish

2016

Proceedings of the 2016 International Conference on Mechanics, Materials and Structural Engineering

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Damaged rolling contact bearings generate vibration. These vibrations may be measured and separated from other vibrations in a machine to analyze and interpret the condition of the bearings and other associated problems. The envelope technique is used to measure the magnitude or energy distribution of the shock emitted whenever a defect in a bearing comes into contact with another surface. Frequency analysis of the enveloped signal determines the type of fault and the amplitude level, the extent of the fault. In this paper, the envelope technique is used to analyze alignment problems associated with cooling tower fans in a large refinery processing crude oil.

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Evaluation of the use of envelope analysis and DWT on AE signals generated from degrading shafts

Cited by 17 publications

References 13 publications

Review of Recent Advances in the Application of the Wavelet Transform to Diagnose Cracked Rotors

Review of Recent Advances in the Application of the Wavelet Transform to Diagnose Cracked Rotors

Robust condition monitoring of rolling element bearings using de-noising and envelope analysis with signal decomposition techniques

Condition Monitoring of Cooling Tower Fans using the Envelope Technique

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