Nonlinear vibration signatures for localized fault of rolling element bearing in rotor-bearing-casing system

Yang, Yizhou; Liu, Chao; Jiang, Dongxiang; Behdinan, Kamran

doi:10.1016/j.ijmecsci.2020.105449

Cited by 41 publications

(16 citation statements)

References 24 publications

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“…Liu et al [17,18] proposed a bearing dynamic model, considering the influence of defects, and applied the model to study the influence of defect morphology on bearing contact characteristics. The influence of various types of bearing local surface defects on the vibration response of bearing system was studied [19][20][21]. Cao et al [22] established the dynamic model of cylindrical roller bearing based on the model proposed by Gupta and studied the vibration mechanism of bearing with local defects.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Modeling and Vibration Characteristics Analysis of Deep-Groove Ball Bearing, Considering Sliding Effect

Shang

2021

Mathematics

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To study the vibration characteristics of deep-groove ball bearing, considering the influence of sliding, the dynamic model of the DGB 6205 system is established in this paper. The DGB 6205 system model includes the movement of the bearing inner ring in the X and Y directions, the rotation of the cage, the rotation movement of each ball, the revolution movement of each ball and the movement along the radial direction of each ball. Based on the system model, the differential equations of motion of the system are established, and the correctness of the model is verified by experiment. The slip characteristics of the DGB 6205 system are studied by numerical simulation. At the same time, the influence of time-varying load on the vibration characteristics of the system is studied. Then, the sensitivity of system parameters is analyzed. The results show that the sliding speed between the ball and the inner raceway is greater than that between the ball and the outer raceway. The radial vibration response of DGB 6205 system under time-varying load is less than that under constant load. The increase of radial clearance will increase the vibration response of DGB 6205 system.

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Section: Introductionmentioning

confidence: 99%

Dynamic Modeling and Vibration Characteristics Analysis of Deep-Groove Ball Bearing, Considering Sliding Effect

Shang

2021

Mathematics

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“…e information on the running states of rolling bearings is contained in vibration signals. In recent years, many scholars have used the vibration signals of rolling bearings for fault diagnosis [10][11][12][13]. However, information on fault characteristics is often obscured by equipment operation noise and environmental background noise, and it is difficult to extract weak faults of bearings [14,15].…”

Section: Introductionmentioning

confidence: 99%

Weak Fault Detection for Rolling Bearings in Varying Working Conditions through the Second-Order Stochastic Resonance Method with Barrier Height Optimization

Shi

Zhou

et al. 2021

Shock and Vibration

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The stochastic resonance (SR) method is widely applied to fault feature extraction of rotary machines, which is capable of improving the weak fault detection performance by energy transformation through the potential well function. The potential well functions are mostly set fixed to reduce computational complexity, and the SR methods with fixed potential well parameters have better performances in stable working conditions. When the fault frequency changes in variable working conditions, the signal processing effect becomes different with fixed parameters, leading to errors in fault detection. In this paper, an underdamped second-order adaptive general variable-scale stochastic resonance (USAGVSR) method with potential well parameters’ optimization is put forward. For input signals with different fault frequencies, the potential well parameters related to the barrier height are figured out and optimized through the ant colony algorithm. On this basis, further optimization is carried out on undamped factor and step size for better fault detection performance. Cases with diverse fault types and in different working conditions are studied, and the performance of the proposed method is validated through experiments. The results testify that this method has better performances of weak fault feature extraction and can accurately identify different fault types in the input signals. The method proves to be effective in the weak fault extraction and classification and has a good application prospect in rolling bearings’ fault feature recognition.

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“…Impulse sequence model and nonlinear multi-body dynamic bearing model could also be proposed to discuss the reasons and influence factors of fault signature in vibration signal. 36…”

Section: Introductionmentioning

confidence: 99%

“…Impulse sequence model and nonlinear multi-body dynamic bearing model could also be proposed to discuss the reasons and influence factors of fault signature in vibration signal. 36 These researchers have paid more attention to the single localized defect and distributed defects in bearing component, however, single defect on raceway may not lead to the replacement of defective bearing in machines until there are multiple localized defects on bearing raceway. More defects would occur during actual operation in working rotating machines, therefore, research on ball bearing with multiple defects are more urgent and necessary to reveal the vibration mechanism of ball bearing.…”

Section: Introductionmentioning

confidence: 99%

A 4-DOF dynamic model for ball bearing with multiple defects on raceways

Gao

Yan

Liu

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part K:

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Localized defects in ball bearing components would cause additional vibration and it is imperative to reveal the vibration mechanism. The relationship between fault characteristic frequency (fBPFI and fBPFO) and multiple defect parameters of ball bearing were given in this paper. Considering elastohydrodynamic lubrication (EHL), radial clearance, time-varying displacement and excitation force generated from multiple defects, a 4 degree-of-freedom (DOF) dynamic model for ball bearing with multiple defects on inner or outer raceway was established, and the model has been verified by experiments. Vibration signals of ball bearing with different defects parameters were simulated, the effects of the angle between two defects ( θIAD and θOAD), the number of defects ( NDI and NDO) and the location of defects on outer raceway on dynamic response were studied. Comparing simulated signals with experimental results, it is shown that more impulses of acceleration signals are generated by multiple defects than that by single defect, meanwhile time delay due to two defects on raceways could also be found, fault characteristic frequency and their harmonics frequencies appeared in the envelope spectrums. Harmonics frequencies of fBPFI are modulated mainly by 2 fs instead of fs in frequency domain for multiple defects on inner raceway. The amplitudes of fBPFO and fBPFI change as Fourier curve when θOAD and θIAD varied within a certain range, and a series of Fourier function are given to describe the mathematic relationship.

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Nonlinear vibration signatures for localized fault of rolling element bearing in rotor-bearing-casing system

Cited by 41 publications

References 24 publications

Dynamic Modeling and Vibration Characteristics Analysis of Deep-Groove Ball Bearing, Considering Sliding Effect

Dynamic Modeling and Vibration Characteristics Analysis of Deep-Groove Ball Bearing, Considering Sliding Effect

Weak Fault Detection for Rolling Bearings in Varying Working Conditions through the Second-Order Stochastic Resonance Method with Barrier Height Optimization

A 4-DOF dynamic model for ball bearing with multiple defects on raceways

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