Analysis of varying contact angles and load distributions in defective angular contact ball bearing

Xu, Lingyu; Yu, Kun; Ma, Hui; Cao, Lei; Luo, Zhitao; Li, Hongfei; Che, Linyang

doi:10.1016/j.engfailanal.2018.04.050

Cited by 87 publications

(35 citation statements)

References 30 publications

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“…The vibro-acoustic characteristics are more widely investigated based on dynamic models, in which the rotational and transitional interactions are described in differential equations [7]. The vibro-acoustic characteristics concerning the contact angles [8], surface roughness [9], external loads [10][11][12][13] and skidding effects [14][15][16] were analyzed, and the performances of inner rings and cages were usually selected as the evaluation indicators [15,[17][18][19][20][21]. The researches are based on the dynamic model of steel rolling bearings, and the findings are very useful for reference.…”

Section: Introductionmentioning

confidence: 99%

On the circumferential distribution of ceramic bearing sound radiation

Bai

Zhang³

2020

J Braz. Soc. Mech. Sci. Eng.

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This paper investigates the sound radiation of ceramic bearings based on the sub-source decomposition method. The circumferential distribution of the sound field that influences the acoustic performance and service life is selected as the indicator, and the calculation precision is verified by an experiment. Afterward, the rotation speed of the bearing is fixed, and the circumferential distributions of sound pressure levels are evaluated to show the variation in radial and axial directions. Results show that the sound radiation varies greatly in the circumference, and sound pressure levels in the lower semicircles are evidently greater than those in the upper semicircles. The trends of circumferential distribution and overall sound pressure levels are different in radial direction, but similar in axial direction. The peak angle is slightly skewed to the rotation direction in the lower semicircle, and also changes with radial and axial distances. The frequency results indicate the main frequency components in the sound radiation, and the variations are discussed from the point of source radiation. This work provides insights into predicting the acoustic performance of ceramic bearings, and can guide further research and development.

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Section: Introductionmentioning

confidence: 99%

On the circumferential distribution of ceramic bearing sound radiation

Bai

Zhang³

2020

J Braz. Soc. Mech. Sci. Eng.

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“…The gyroscopic torque in the model is balanced by the friction force on the control raceway. Later, Harris [31] perfected the bearing model, formed the classic J-H bearing model, and successfully applied it to various fields of bearing analysis [32][33][34][35]. Guo [36] through the establishment of the finite element models to analyze the bearing stiffness under different parameters, this method has a strong applicability, but the disadvantage is time-consuming and complex.…”

Section: Introductionmentioning

confidence: 99%

Research on the effect of structural and material parameters on vibrations based on quasi-static model of bearings

Cheng

Zhang

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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Variable compliance vibration is an inevitable source of the parametrically excited factors of rolling bearing-rotor system under the effect of only a limited number of rolling elements to carry the loads. Based on the quasi-static model of ball bearing, the mechanism of time-varying stiffness is studied and the effects of external load, rotational speed, geometric structure of the bearing and material parameters on the time-varying stiffness and relative variation of stiffness are analyzed quantitatively. Results show that load redistribution in bearing caused by the change of ball spatial position is the direct cause of the time-varying stiffness. Rotational speed, the number of balls and diameter have great effect on varying compliance vibration compared with external load and material parameters. In order to reduce the vibration, axial preload, contact angle, ball diameter and density should be appropriately increased, raceway groove curvature radius and radial load should be reduced, and the optimal number balls and rotational speed can be obtained according to the single-variable optimization method. The results provide theoretical basis for the structural design, material and manufacturing process selection.

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“…18 Numerous studies have also been reported to formulate the local faults in different bearings. 19 For example, Sassi et al, 20 Khanam et al, 21 Liu et al, 22,23 Li et al, 24 Niu et al, 25 Hou et al, 26,27 Han et al, 28 and Kogan et al 29 used different analytical methods to study the vibrations of defective bearings. Some works [30][31][32] used the finite element methods to study the vibrations of defective bearings.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Analysis of a High-Speed Railway Train With the Defective Axle Bearing

Liu¹,

Du²

2020

The International Journal of Acoustics and Vibration

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Axle bearings (AXBs) are critical parts for high-speed railway trains (HSTs). Local faults in the AXBs have great influences on the operational dynamics of HSTs. Although some previous works formulated the local faults in single AXB, the vibrations of the whole train system with the defective AXB cannot be described. To overcome this problem, this study conducts a dynamic model for a HST considering a local fault in one AXB. The previous single AXB model cannot formulate the studied case. The impacts caused by the fault in the AXB is defined as a time-dependent force model considering a half-sine type. The road spectrum excitations from the roadbed and rail are formulated by a track irregularities model. The effects of the train speeds and fault sizes on the HST dynamics are introduced. The simulation results from the proposed and previous works are contrasted to show the model validation. The results show that the faults in the AXB will greatly affect the HST dynamics. It depicts that this study can afford a more reasonable approach for understanding the dynamics of HSTs considering the defective AXBs compared to the reported single AXB model.

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Analysis of varying contact angles and load distributions in defective angular contact ball bearing

Cited by 87 publications

References 30 publications

On the circumferential distribution of ceramic bearing sound radiation

On the circumferential distribution of ceramic bearing sound radiation

Research on the effect of structural and material parameters on vibrations based on quasi-static model of bearings

Dynamic Analysis of a High-Speed Railway Train With the Defective Axle Bearing

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