A comparison of cepstral editing methods as signal pre-processing techniques for vibration-based bearing fault detection

Peeters, Cédric; Guillaume, Patrick; Helsen, Jan

doi:10.1016/j.ymssp.2016.12.036

Cited by 88 publications

(41 citation statements)

References 34 publications

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“…This aspect is not helpful in the damage detection process; the TKE operator seems to be more resilient to these slight changes. By summing up all of the damage scenarios of this first case, it turns out that of all features, the TECCs are the only one always correctly labelling the cases with realistic damage patterns (05-14) and the ones with global, small fluctuations of E, unrelated to damage (15)(16)(17)(18). Indeed, the TECCs fall short of a perfect score for only three mislabeled realisations (out of 10) in case 01, which was also the most demanding scenario due to the proximity of the damage to the fixed end.…”

Section: Results From the Numerical Simulationsmentioning

confidence: 99%

The Teager-Kaiser Energy Cepstral Coefficients as an Effective Structural Health Monitoring Tool

et al. 2019

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Recently, features and techniques from speech processing have started to gain increasing attention in the Structural Health Monitoring (SHM) community, in the context of vibration analysis. In particular, the Cepstral Coefficients (CCs) proved to be apt in discerning the response of a damaged structure with respect to a given undamaged baseline. Previous works relied on the Mel-Frequency Cepstral Coefficients (MFCCs). This approach, while efficient and still very common in applications, such as speech and speaker recognition, has been followed by other more advanced and competitive techniques for the same aims. The Teager-Kaiser Energy Cepstral Coefficients (TECCs) is one of these alternatives. These features are very closely related to MFCCs, but provide interesting and useful additional values, such as e.g., improved robustness with respect to noise. The goal of this paper is to introduce the use of TECCs for damage detection purposes, by highlighting their competitiveness with closely related features. Promising results from both numerical and experimental data were obtained.

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Section: Results From the Numerical Simulationsmentioning

confidence: 99%

The Teager-Kaiser Energy Cepstral Coefficients as an Effective Structural Health Monitoring Tool

et al. 2019

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“…For dealing with harmonics components in the input signal the methodology has been chosen and implemented in order to minimize the influence of the analyst and make autonomous the analysis of the data. Cepstrum based harmonics lifter is a pre-processing methodology extensively described in the literature [11][12][13][14][15][16] that resulted to be the highly suitable to be automatized.…”

Section: Field Data-driven Designmentioning

confidence: 99%

Identification of Noise, Vibration and Harshness Behavior of Wind Turbine Drivetrain under Different Operating Conditions

et al. 2019

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Noise, vibration and harshness (NVH) problems are critical issues to be tackled for wind turbine drivetrains. Tracking the behavior of modal parameters of the machines’ fundamental modes during operation it is of high interest to validate complex simulation models. A powerful approach for this purpose is represented by operational modal analysis (OMA). This paper describes the investigation of an automated technique for continuously tracking the modes of a rotating mechanical system running in normal operating conditions. The modal estimation procedure is based on an automatic version of the pLSCF (poly-reference Least-Square Complex Frequency-Domain) algorithm. The latter is coupled with a method that automatically tracks the modal parameters along different data sets. The use of OMA on a rotating component of the wind turbine creates the need to deal with harmonics in order to satisfy one of the assumptions of OMA. For this purpose, the use of a cepstrum editing procedure is analyzed and implemented. Modal estimates obtained from an automated analysis on stand still data and normal operating conditions data are compared, to test the added value of the cepstrum editing procedure and the robustness of the method when used on real data. To illustrate and validate the implemented methodology, data acquired during a long-term monitoring campaign of a wind turbine drivetrain are used.

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“…With the development and wide application of computer technology, it has laid a material foundation for the study of torsional vibration. The calculation of the traditional Holzer method [14,15], the energy method [16,17] and the amplification factor method [18] can be easily realized by computer. These methods can deal with torsional vibration calculation of complex systems.…”

Section: Introductionmentioning

confidence: 99%

Study on torsional vibration of RT60 crane transmission system

Xiao

Zhou

2020

Mechanics & Industry

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In the process of engineering use, the elastic coupling of the RT60 crane transmission system has a large noise and even breaks down sometimes. In this paper, RT60 crane transmission system is the research object. A finite element model and a discrete model for torsional vibration of transmission system are established by finite element method and lumped parameter method. Through the study of the finite element model and the vibration test of transmission system, the correctness of the system model, equivalent parameter, calculation method and MATLAB program are verified. Because of the high efficiency of the torsional vibration discrete system, the discrete model is used in this paper to replace the finite element model. The free vibration and response vibration of the crane transmission system are calculated and analyzed, and the reasons for the existence of the system noise are explained in the starting stage. Through the study of the vibration theory and the matching method of the elastic coupling, the CX-45-VFA-60-11 elastic coupling is proposed to replace the CX-45-VFA-11 elastic coupling. In this paper, the data signal is collected by the hall gear sensor, and the data are analyzed by the self-developed vibration tester. The vibration amplitude of the torsional vibration of the crane transmission system is greatly reduced by testing the transmission system of the replacement of the elastic coupling. This paper provides a theoretical guiding significance for the low noise design of the crane transmission system.

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A comparison of cepstral editing methods as signal pre-processing techniques for vibration-based bearing fault detection

Cited by 88 publications

References 34 publications

The Teager-Kaiser Energy Cepstral Coefficients as an Effective Structural Health Monitoring Tool

The Teager-Kaiser Energy Cepstral Coefficients as an Effective Structural Health Monitoring Tool

Identification of Noise, Vibration and Harshness Behavior of Wind Turbine Drivetrain under Different Operating Conditions

Study on torsional vibration of RT60 crane transmission system

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