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

Li, Fanjie; Li, Xiaopeng; Shang, Dongyang

doi:10.3390/math9192408

Cited by 8 publications

(3 citation statements)

References 25 publications

(27 reference statements)

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“…During operation, the bearing will be slightly damaged under the action of mechanical load, lubrication deterioration, slip, and other factors, and the damage degree will further increase with the increase of operation time (Liu et al, 2021; Wang and Du, 2022; Li et al, 2021). The vibration signal measurement and performance prediction of the shaft-cylindrical roller-bearing-pedestal system considering damage can effectively ensure the safe operation of the system.…”

Section: Introductionmentioning

confidence: 99%

Vibration analysis of shaft-cylindrical roller-bearing-pedestal system considering damage by Runge–Kutta algorithm

Haozhe

et al. 2023

Journal of Vibration and Control

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The raceway damage of the bearing restricts the operation stability of the system. Therefore, in the case of damage, simulating vibration response and predicting the performance of the shaft-cylindrical roller-bearing-pedestal system have high research value. According to the structural characteristics and the force transfer relationship, a dynamic model of the shaft-cylindrical roller-bearing-pedestal system is established in this paper. Then, the vibration response of the system is simulated by Runge–Kutta algorithm and measured by experiment. Finally, the effects of load and speed, damage size, and radial clearance on the dynamic performance are investigated. The simulation and measurement results indicate that the load F and the speed N can promote the enhancement of the vibration acceleration signal. As the damage length continues to increase, the ring in the Poincaré map begins to break, and the system transits from quasi-periodic to chaotic motion. The vibration signal is more affected by the damage size than by the damage location. When the radial clearance increases from 5 × 10−6 m to 15 × 10−6 m, the PTP value increases from 23.83 m·s−2 to 61.36 m·s−2.

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Section: Introductionmentioning

confidence: 99%

Vibration analysis of shaft-cylindrical roller-bearing-pedestal system considering damage by Runge–Kutta algorithm

Haozhe

et al. 2023

Journal of Vibration and Control

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“…Under the large eccentricity ratio, the lubrication performance of bearings is reduced by the slip velocity. Li et al [21] established a theoretical model of deep-groove ball bearing, where the radial slip velocity was considered, and the vibration characteristics were analyzed. Feng et al [22] analyzed the static characteristics of local grooves in water-lubricated bearings when the circumferential slip velocity was considered.…”

Section: Introductionmentioning

confidence: 99%

A Three-Dimensional Slip Velocity Model for Water-Lubricated Hydrodynamic Journal Bearings

Cheng²,

Sun³

et al. 2022

JMSE

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Hydrodynamic journal bearings, coated with polytetrafluoroethylene (PTFE) and lubricated by water, have been widely used in ships and large-scale pumps, and the function is to maintain the stability of rotor system. However, slip velocity exists on the PTFE-coated surface, whose effect is still an open question. This study aims to investigate the static characteristics of water-lubricated hydrodynamic journal bearings under three-dimensional slip velocity boundary conditions. Firstly, under the non-slip boundary condition, the CFD (computational fluid dynamics) method with ANSYS Fluent is verified based on the Reynolds lubrication equation and the open literature. Then, a three-dimensional slip velocity equation that is based on the Navier slip velocity boundary condition is proposed and embedded into Fluent. Finally, the effects of slip length on the static characteristics are analyzed. Under the same eccentricity ratio, with the increase in slip length, the load capacity decreases due to the decrease of the pressure circumferential gradient, and the friction power decreases. Under the same eccentricity ratio and the same slip length, with the increase in the attitude angle, the load capacity and friction power increase. However, under the non-slip boundary condition, the effects of attitude angle on the load capacity and friction power are insignificant. This paper could provide a reference for studying slip velocity in the hydrodynamic journal bearing.

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“…Though the authors have considered distributed defects, they ignored the presence of local defects in their model. Researchers [24][25][26] have established a vibration model to analyze the characteristic frequency for bearing with localized defects but the authors have ignored the effects of damping present in the bearing.…”

Section: Introductionmentioning

confidence: 99%

Vibration Model to Detect Local Defect Characteristics of Deep Groove Ball Bearing

Verma¹,

Saini²

2022

Evergreen

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The vibration model, to analyze the local defect in the deep groove ball bearing system is reported in this paper. Shaft, races, balls, and housing masses along with damping at the ball-race interface and defects on its races are considered in the model. The governing equations are solved using MATLAB to simulate the vibration responses of the bearing system. To validate the simulation results, experiments have been performed and compared with simulated results. The comparison shows that the simulated characteristic frequencies differ with experimental values between 0.19 % to 0.72 % which is negligible. The velocity amplitudes at characteristic frequencies in simulated results are in poor agreement with experimental values. This is due to the defects like misalignment, residual unbalancing, etc. are ignored in the theoretical model. Since the simulated results are depicting the same characteristics as it is shown in experimental results, therefore, this vibration model can be used to study the vibration characteristics and to predict the localized defects in ball bearings.

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

Cited by 8 publications

References 25 publications

Vibration analysis of shaft-cylindrical roller-bearing-pedestal system considering damage by Runge–Kutta algorithm

Vibration analysis of shaft-cylindrical roller-bearing-pedestal system considering damage by Runge–Kutta algorithm

A Three-Dimensional Slip Velocity Model for Water-Lubricated Hydrodynamic Journal Bearings

Vibration Model to Detect Local Defect Characteristics of Deep Groove Ball Bearing

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