Bending stress of rolling element in elastic composite cylindrical roller bearing

Yao, Qishui; Yang, Wen Gang; Yu, Dejie; Yu, Jin

doi:10.1007/s11771-013-1868-1

Cited by 12 publications

(5 citation statements)

References 11 publications

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“…Elastic composite cylindrical roller bearing is a new type of cylindrical roller bearing, as shown in Figure 1. Through the structural innovation design of cylindrical roller bearing, PTFE material is embedded in the deep hollow cylindrical roller to form an elastic composite cylindrical roller structure [17,18], which increases the elasticity of the cylindrical roller, so as to increase the contact area between the roller and the inner and outer rings, reduce the contact stress between the roller and the raceway, improve the safe service life and bearing capacity of the cylindrical roller bearing, and also have obvious effect of vibration reduction and noise reduction. As a new type of cylindrical roller bearing, elastic composite cylindrical roller bearing [19][20][21] also has the problem of fatigue failure.…”

Section: Introductionmentioning

confidence: 99%

Research on Elastic Composite Cylindrical Roller Bearing Contact Fatigue Based on the Subsurface Stress

Wen¹,

Yao

et al. 2023

International Journal of Rotating Machinery

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In order to study the elastic contact fatigue problems of composite cylindrical roller bearing, through the three stages of contact fatigue crack initiation, propagation, and ablating of cylindrical roller bearing theoretically analyzed, the subsurface stress is one of the factors of contact fatigue damage. By finite element method and theoretical analytic method with solid cylindrical roller bearing contact surface, the size and distribution of shear stress are analyzed, and comparing the calculation results of two methods, the comparison results show that the finite element method to calculate the bearing contact problem is scientific and reasonable. Through the finite element method of cylindrical roller bearing and elastic composite cylindrical roller bearing subsurface shear stress and equivalent stress on the surface of numerical analysis, the calculation results show that the subsurface stress value of elastic composite cylindrical roller bearings was 31.65% smaller than that of ordinary cylindrical roller bearings, and the distribution of the maximum subsurface stress value of elastic composite cylindrical roller bearings was shallower than that of cylindrical roller bearings. The elastic composite cylindrical roller bearings have significant advantages over cylindrical roller bearings in terms of subsurface stress and have stronger resistance to contact fatigue damage. The finite element method is used to analyze the subsurface stress of elastic composite cylindrical roller bearings with different filling degrees. The results show that the subsurface shear stress and equivalent stress values of elastic composite cylindrical roller bearings with filling degrees of 55% to 65% are maintained at a relatively low level, and the depth of the maximum stress is minimal, which is basically distributed on the surface of the rolling body. The magnitude and distribution of subsurface stresses in elastic composite cylindrical roller bearings provide a reference for more reasonable structural design.

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Section: Introductionmentioning

confidence: 99%

Research on Elastic Composite Cylindrical Roller Bearing Contact Fatigue Based on the Subsurface Stress

Wen¹,

Yao

et al. 2023

International Journal of Rotating Machinery

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“…Solanki 12 proposed a layered cylindrical hollow rolling element, and studied the effects of different hollowness percentages on contact pressure. Yao et al 13,14 investigated the effect of the rolling element of filling degree on dynamic equivalent stress and inner wall bending stress of the ECCRB.…”

Section: Introductionmentioning

confidence: 99%

Analysis of motion and vibration characteristics of elastic composite cylindrical roller bearing

Zhang

Bian

Chen

et al. 2023

Noise & Vibration Worldwide

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To investigate the motion characteristics and vibration characteristics of elastic composite cylindrical roller bearings (ECCRBs), a simulation model of the ECCRB is established in ABAQUS software. The influences of filling degrees and working conditions on motion characteristics of the ECCRB are compared, and the modal characteristics and harmonic response of the ECCRB are analyzed. Calculation results show that when the filling degree increases from 0% to 60%, there is a nonlinear relationship between the filling degree and the slip rate of cage, the natural frequency of each order decreases, and the vibration displacement of ECCRB increases under the excitation load; increasing the rotation speed and decreasing the radial load reasonably is beneficial to the motion stability of the ECCRB. At the same time, with the increase of the excitation load, the vibration displacement of the ECCRB increases. The analysis results can present some theoretical basis for the structural optimization of the ECCRB.

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“…For the study of composite cylindrical roller bearings (CCRB), Yao et al (2013aYao et al ( , 2013bYao et al ( , 2020Yao et al ( , 2021 proposed the technique of embedding PTFE into hollow roller to increase its contact characteristics for the investigation of CCRB. The contact between a single roller and the raceway was established using ABAQUS software, and the impact of load on the contact characteristic parameters was examined by Yu et al (2015) and Yu et al (2019).…”

Section: Introductionmentioning

confidence: 99%

Study on contact and vibration characteristics of composite cylindrical roller bearings

Bian,

Zhang,

Jiao

et al. 2023

ILT

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Purpose The purpose of this paper is to establish a dynamic analysis model of composite cylindrical roller bearings, investigate the effects of different working conditions on the kinematic characteristics of composite bearings and compare the differences between them and solid roller bearings. Design/methodology/approach This paper establishes a dynamic analysis model for composite cylindrical roller bearings and proves the correctness of the established model by establishing dynamic vibration experiments and contact theory for composite roller bearings. Comparative analysis was conducted on the effects of coupling changes in rotational speed, load, number of rollers and filling ratio on parameters such as bearing static stiffness, contact stress and vibration acceleration. Findings The composite roller can enhance the bearing’s operational stability and minimize contact stress, but that a higher filling ratio is going to increase the bearing’s stiffness. The acceleration degree of bearing vibration, the load on the outer raceway nodes and the bearing stability all decrease as inner ring speed rises. Originality/value A dynamic calculation model of composite cylindrical roller bearings is established, and the influence of multiparameter coupling changes on bearing vibration and contact is studied, which lays a foundation for the structural improvement of the bearings.

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Bending stress of rolling element in elastic composite cylindrical roller bearing

Cited by 12 publications

References 11 publications

Research on Elastic Composite Cylindrical Roller Bearing Contact Fatigue Based on the Subsurface Stress

Research on Elastic Composite Cylindrical Roller Bearing Contact Fatigue Based on the Subsurface Stress

Analysis of motion and vibration characteristics of elastic composite cylindrical roller bearing

Study on contact and vibration characteristics of composite cylindrical roller bearings

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