A numerical study of the contact and vibration characteristics of a roller bearing with a surface crack

Shi, Zhenning; Liu, Jing; Dong, Shaojiang

doi:10.1177/1464420720903075

Cited by 4 publications

(3 citation statements)

References 28 publications

(48 reference statements)

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“…The development of defects in the rolling-element bearing interactions is mostly caused by surface fatigue wear. 43,51,52 As the fatigue load cycle increases, the variation in operating parameters, for example, film thickness, lubricant film stiffness, friction coefficient, traction coefficient, etc., leads to a propagating fault on the interaction surfaces of bearing components. The defects propagated on the bearing interaction surfaces alter the dynamic behaviour of the bearing system, thereby initiating variations in vibration levels.…”

Section: Resultsmentioning

confidence: 99%

Assessing the fatigue wear effect on traction coefficient and dynamic performance of roller bearing

Prasad

Amarnath

Chelladurai

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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Rolling element bearings are commonly employed in rotating machinery to support rotating shafts. These machinery elements are vulnerable to failure due to increased friction and heat, which cause progressive wear on the rolling interaction surfaces of the bearing. The failure of bearings causes an unpredicted shutdown of equipment, leading to an increase in downtime and financial losses. Various condition monitoring techniques have been developed for periodic assessment of failure in roller-bearing systems. The focus of this work is to establish a relationship between surface fatigue wear, film thickness [Formula: see text], asperity load ratio [Formula: see text], lubricant film stiffness [Formula: see text] and traction coefficient [Formula: see text] parameters. A periodic assessment of the above-mentioned parameters was made on the test bearing, which was subjected to a fatigue test for 2000 h. The results acquired from the experimental study highlighted that, as surface fatigue wear on the bearing interaction surfaces and lubricant degradation occurred with an increase in fatigue load cycles, the asperity load ratio [Formula: see text] and traction coefficient [Formula: see text] parameters showed a gradual rise in trend which further resulted in a difference in the dynamic behaviour of the bearing system.

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Section: Resultsmentioning

confidence: 99%

Assessing the fatigue wear effect on traction coefficient and dynamic performance of roller bearing

Prasad

Amarnath

Chelladurai

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…Liu et al (2020) carried out finite element modeling of bearing raceway damage and analyzed the interaction law of various parts under the damage. Shi et al (2020) put forward a damage model and analyzed the mapping relationship between contact deformation and damage size. Yi et al (2021) equalized the damage on the inner raceway to the isosceles trapezoid groove and studied the vibration signal in the double rotor system with damaged bearing.…”

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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“…Liu et al [28] presented a FEM model to study the effects of the horizontal and slant subsurface cracks on the contact characteristics in a roller bearing, and obtained the mathematic relationship between the contact characteristics and crack sizes by using a polynomial fitting approach. Considering the surface crack, Shi et al [29] proposed a dynamic model of the roller bearing to study the influences of the surface crack sizes (depth and slope angle) on the bearing vibration and contact characteristics.…”

Section: Introductionmentioning

confidence: 99%

Dynamic response and contact characteristics of shaft-bearing-pedestal system with localized defect using 2-D explicit dynamics finite element model

Li¹,

Yan²,

Yang³

et al. 2022

J. vibroeng.

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As the core and precision component of a mechanical system, rolling element bearings would cause irreparable results once it breaks down. In order to study the dynamic response of bearing system caused by different localized defect sizes on outer raceway, a two-dimensional (2-D) explicit dynamics Finite Element Method (FEM) model of shaft-bearing-pedestal system with a localized defect is proposed. The model is verified by the experimental results. A new numerical method is used to investigate the influence of different defect sizes on the contact characteristics in this model. The indicator scfdefect-health is introduced to study the contact force with different defect sizes. The results show that the scfdefect-health increases with the increasing of defect depth and width, and the mathematic relationships are given for scfdefect-health. Therefore, the dynamic FEM model can be used to bearing fault diagnosis and defect prediction.

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A numerical study of the contact and vibration characteristics of a roller bearing with a surface crack

Cited by 4 publications

References 28 publications

Assessing the fatigue wear effect on traction coefficient and dynamic performance of roller bearing

Assessing the fatigue wear effect on traction coefficient and dynamic performance of roller bearing

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

Dynamic response and contact characteristics of shaft-bearing-pedestal system with localized defect using 2-D explicit dynamics finite element model

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