Discrete Wavelet Transform Based Measurement of Inner Race Defect Width in Taper Roller Bearing

Singh, Manpreet; Yadav, Raj; Kumar, Rajesh

doi:10.1007/s12647-013-0045-1

Cited by 19 publications

(8 citation statements)

References 11 publications

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“…In this work, the design load of the roller is 5000 N. The material of the TRB is assumed to be steel. According to the calculation method in equations (18) to (24), the contact deformations between the roller and races are listed in Table 2. Note that the contact deformations between the inner race and roller are larger than those between the outer race and roller for a same load.…”

Section: Simulation and Discussionmentioning

confidence: 99%

“…Nelias 23 presented a comprehensive model to investigate the effect of the skew moment for the roller on the contact stress between the roller and races of a TRB based on a quasi-static TRB equilibrium model. Singh et al 24 and Kumar and Singh 25 detected the fault width in the races of a TRB using the discrete wavelet transform method. Li and Kang 26 developed a 3D vibration model for a TRB to study the effect of a LSF on its vibrations.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic simulation for a tapered roller bearing considering a localized surface fault on the rib of the inner race

Liu

Shao

Qin

2017

Proceedings of the Institution of Mechanical Engineers, Part K:

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Vibration characteristics of a tapered roller bearing system will be significantly affected by a localized surface fault in the rib of the inner race. The operating condition for the tapered roller bearing system is always monitored to prevent serious failures from happening based on changes in the vibration characteristics. However, most of the previous works are focused on dynamic simulations for a localized surface fault in the race surface. A new dynamic simulation method for a tapered roller bearing with a localized surface fault on the rib of the inner race is proposed. The non-Hertzian contact of taper roller to races and rib is considered. The time-varying deflection excitation caused by the fault is formulated in the proposed method, as well as both the axial and radial contact deformation between the races and rollers. Effects of the axial load, radial load, and fault sizes on the vibration characteristics for the tapered roller bearing are analyzed. An experimental investigation is also developed to validate the proposed method. The results show that the proposed dynamic simulation method can formulate the vibration characteristics for the tapered roller bearing caused by the localized surface fault on the rib of the inner race, which may give some guidance for the tapered roller bearing condition monitoring and fault diagnosis, especially for the incipient localized surface fault.

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Section: Simulation and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamic simulation for a tapered roller bearing considering a localized surface fault on the rib of the inner race

Liu

Shao

Qin

2017

Proceedings of the Institution of Mechanical Engineers, Part K:

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“…Then, combining Eqs. (8), (15), (22) and (23), the theoretical relationship between HVSPeak and φ f can be obtained as:…”

Section: Dynamic Model and The Horizontal-vertical Synchronizatimentioning

confidence: 99%

“…In such circumstances, a method for noise reduction and feature extraction is needed, such as wavelet transform, sparse representation and empirical mode decomposition [11]- [14]. A technique based on decomposition Symlet wavelet was employed for estimating the inner raceway defect width [15]. To separate the entry-exit events, and to calculate the size of the fault, the approximate entropy method and empirical mode decomposition were applied by Ref.…”

Section: Introductionmentioning

confidence: 99%

Mechanism and Method for Outer Raceway Defect Localization of Ball Bearings

et al. 2020

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The localization of outer raceway defect plays a significant role in malfunction elimination, failure cause analysis as well as the residual life prediction of ball bearings. Based on the nonlinear dynamic model for a ball bearing and the outer raceway defect model considering the ball finite size, this article employs the detailed mathematical derivation and theoretical analysis of the load distribution for the bearing system with an outer raceway defect located at the different angular positions. Therefore, the essential mechanism of the approximate linear relationship between the proposed indices, namely horizontal-vertical synchronized Peak (HVSPeak) and horizontal-vertical synchronized RMS (HVSRMS), and the defect angular position is explained. More importantly, it is theoretically demonstrated that HVSRMS is approximately a cotangent function with the defect angular position as the only variable, which indicates that the index has excellent anti-interference and practicability. In addition, the superiority and necessity of the HVSRMS index can be seen when compared to HVSPeak, RMS, SampEn and Lemple-Ziv. It is validated through simulation and experiment results that HVSRMS index can efficiently diagnose the angular position of outer raceway defect. Finally, the signal denoising methods for HVSRMS are compared and studied, which indicates the direction for subsequent research.

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“…The ratio of central frequency to the bandwidth is called Q-factor. The wavelet transformation techniques such as continuous wavelet transform (CWT) [15][16][17] and discrete wavelet transform (DWT) 18,19 have single Q-factor. The wavelet packet transforms (WPT), [20][21][22] however, have two different Q-factors over each level.…”

Section: Introductionmentioning

confidence: 99%

Oscillatory behavior-based wavelet decomposition for the monitoring of bearing condition in centrifugal pumps

Kumar

2017

Proceedings of the Institution of Mechanical Engineers, Part J:

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Bearing failure is one of the reasons for centrifugal pump breakdown. Existing methods developed for bearing fault diagnosis do not work satisfactorily when the vibration signature of bearing is overlapped by the signature from other defect sources such as an impeller defect. A vibration signal processing scheme making use of ensemble empirical mode decomposition and dual Q-factor wavelet decomposition is proposed to extract information of the bearing defect in a pump. A criterion called as frequency factor is also proposed to find the best decomposition level for the given high and low Q-factor wavelet decomposition parameters. The transient impulses due to bearing defect are effectively extracted separating traces of oscillatory signature of impeller defect and the noise in the signal. The same has been demonstrated using simulation analysis and experimental study. A comparison of the proposed method with existing signal processing methods is also presented.

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Discrete Wavelet Transform Based Measurement of Inner Race Defect Width in Taper Roller Bearing

Cited by 19 publications

References 11 publications

Dynamic simulation for a tapered roller bearing considering a localized surface fault on the rib of the inner race

Dynamic simulation for a tapered roller bearing considering a localized surface fault on the rib of the inner race

Mechanism and Method for Outer Raceway Defect Localization of Ball Bearings

Oscillatory behavior-based wavelet decomposition for the monitoring of bearing condition in centrifugal pumps

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