Fatigue Life Analysis of Rolling Bearings Based on Quasistatic Modeling

Guo, Wenlong; Cao, Hongrui; He, Zhengjia; Yang, Laihao

doi:10.1155/2015/982350

Cited by 14 publications

(9 citation statements)

References 29 publications

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“…The parameters in this mathematical model of bearing are in ADOSE of P.K. Gupta bearing dynamics program [10] was tabulated in Table 2. The 10 spindle oil was chosen with the lubrication oil dynamic viscosity of 0 =0.027 Pa•s and viscosity coefficient =2.3e-8Pa −1 [11].…”

Section: Results Of Dynamic Characteristics the Changes Of mentioning

confidence: 99%

“…A coupled spindle bearing model was established considering the centrifugal deformation by Hong et al [9], and the simulation and experimental results indicated that there is a correlation between the natural frequency and the number of bearings. The Jones' bearing model was updated by Guo et al [10], by considering of radial centrifugal expansion and thermal deformations on the geometric displacement in the bearings, which can predict the contact angle, deformation, and load between rolling elements and bearing raceways more accurately.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of Bearing Dynamic Characteristics by Numerical Modeling with Effects of Oil Film and Centrifugal Deformation

Yuan

et al. 2018

Mathematical Problems in Engineering

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This paper developed a modified quasi-static model (MQSM), considering the oil film thickness between the bearing parts and the centrifugal deformation of the inner ring, and contrasting with traditional quasi-static model (TQSM), to analyze the dynamic characteristics of spindle bearing. The model was verified with the experimental results. A systematic parametric analysis was made to investigate the influence of applied load, inner ring rotation speed (ni), and the radius coefficient of groove curvature (RCR) on the contact load, contact angle, and heat generating rate. The results show that there is a smaller influence on the contact load, contact angle, and heat generation of bearing with the changes of ni and axial load (Fa) of bearing in the case of MQSM and TQSM. But the radial load (Fr) and RCR have great influence on this.

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Section: Results Of Dynamic Characteristics the Changes Of mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of Bearing Dynamic Characteristics by Numerical Modeling with Effects of Oil Film and Centrifugal Deformation

Yuan

et al. 2018

Mathematical Problems in Engineering

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“…The contact stress in the contact zone is distributed as an ellipsoid, as shown in Figure 5. When the contact load is Q, the contact stress at any point (x, y) in the contact zone can be expressed as follows [36]:…”

Section: Figure 3 Force Distribution Of Rolling Bearings Under the Ramentioning

confidence: 99%

Fatigue Life Prediction of Rolling Bearings Based on Modified SWT Mean Stress Correction

Huang

et al. 2020

Preprint

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Mean stress has a great influence on fatigue life, commonly used stress-based life prediction models can only fit the test results of fatigue life under specific stress ratio or mean stress but cannot describe the effect of stress ratio or mean stress on fatigue life. Smith, Watson and Topper (SWT) proposed a simple mean stress correction criterion. However, the SWT model regards the sensitivity coefficient of all materials to mean stress as 0.5, which will lead to inaccurate predictions for materials with a sensitivity coefficient not equal to 0.5. In this paper, considering the sensitivity of different materials to mean stresses, compensation factor is introduced to modify the SWT model, and several sets of experimental data are used for model verification. Then, the proposed model is applied to fatigue life predictions of rolling bearings, and the results of proposed method are compared with test results to verify its accuracy.

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“…Due the importance of this matter, many papers seek to understand the mechanism of this problem. However, the study of contact between bearing parts is known to be a complex issue, since the contact area is subjected to stresses as high as 2∼5 GPa (Norton, 2013;Rycerz, Olver, and Kadiric, 2017;Morales-Espejel and Gabelli, 2015;Bhattacharyya, Londhe, Arakere, and Subhash, 2017;Li, Hu, Meng, Zhan, andShen, 2017 Arakere, 2016), as well as several other parameters that have an impact on the situation, such as lubrication, vibration, roughness (Yusof and Ripin, 2014), bearing dimensions (Chen and Wen, 2015), rotation speed, applied loads (Guo, Cao, He, and Yang, 2015), and the curvature of the inner and outer rings (Deng, Hua, Han, and Huang, 2013;Chen and Wen, 2015). Therefore, each parameter must be examined thoroughly, seeking to determine the influence of its behavior on RCF.…”

Section: Introductionmentioning

confidence: 99%

A study of the stress field generated by the contact between a sphere and a flat plate for a simplified model of deep-groove ball bearing

Köhn¹,

Silva²

2020

Ing. Inv.

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Bearings are mechanical elements capable of transferring motion between two or more parts in a machine. When an external load is applied, the rolling elements and their rings tend to initiate a cyclical movement between themselves. Hence, they are linked by a variable type of contact, thus creating high surface stresses. As these elements are subjected to millions of cycles within their lifespan, these cyclical stresses may create cracks and cause failure by rolling contact fatigue (RCF). Due to the importance of this subject, it is vital to study the stress field caused by contact between the rolling parts in a bearing. This paper offers two approaches on the cyclical stresses in a deep-groove ball bearing: an analytical approach, using Hertz’s theory for contact stresses; and a numerical simulation, using the Finite Element Method (FEM) with the software Inventor and Nastran In-CAD. The results of both approaches were compared, and stress behavior was analyzed as the depth of the inner ring was increased. It was concluded that the surface stresses are greatly superior than the strength of the materials used in the bearings, and that the area influenced by these stresses are small when compared to the dimensions of the whole.

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Fatigue Life Analysis of Rolling Bearings Based on Quasistatic Modeling

Cited by 14 publications

References 29 publications

Assessment of Bearing Dynamic Characteristics by Numerical Modeling with Effects of Oil Film and Centrifugal Deformation

Assessment of Bearing Dynamic Characteristics by Numerical Modeling with Effects of Oil Film and Centrifugal Deformation

Fatigue Life Prediction of Rolling Bearings Based on Modified SWT Mean Stress Correction

A study of the stress field generated by the contact between a sphere and a flat plate for a simplified model of deep-groove ball bearing

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