A coupled approach for rolling contact fatigue cracks in the hydrodynamic lubrication regime: The importance of fluid/solid interactions

Balcombe, R. J.; Fowell, Mark; Olver, A.D.; Ioannides, Stathis; Dini, Daniele

doi:10.1016/j.wear.2011.02.005

Cited by 23 publications

(16 citation statements)

References 30 publications

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“…In those cases, initial damage manifests itself with tiny surface cracks with a certain angle respect to the surface [31]. For a detailed study on how those cracks become an spall, crack propagation modelling including the effect of inter-crack lubricant [32] is required and the current model would not be sufficient.…”

Section: Discussionmentioning

confidence: 99%

Propagation of Large Spalls in Rolling Bearings

2019

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The paper focuses on studying the propagation of large spalls on the raceways of rolling bearings. This is done by means of experiments and modelling. It is shown that the application of a relatively simple model to describe a spall evolution in time in rolling bearings is feasible. The proposed model is validated using experiments, where rolling bearings with initial pre-damage have been tested and the surface spall progression has been monitored in time. Surprisingly, spall progression in rolling bearings appears to be correctly described by a model of damage initiation. Without the need of a more sophisticated crack propagation model, at least this seems to be the case for a relatively large spall (larger than the Hertzian contact). Where the effects of the pressure build up from lubrication can be ignored. However, dynamic effects cannot be disregarded, since they seem to be the driving force for the propagation direction in some cases. The effect of the shape, size of the initiation point and load sequence is studied as well as the shape of the contact (line or elliptical), giving interesting insights of the propagation mechanisms.

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Section: Discussionmentioning

confidence: 99%

Propagation of Large Spalls in Rolling Bearings

2019

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“…Jácome et al [2] and Yongqi et al [3] have studied the stress and strain distribution by FEA (finite element analysis) with commercial codes. Rolling contact fatigue and the importance of lubrification have been shown by Ebert [4] and Balcombe et al [5]. Yamashita et al [6] have done an analysis of the elastohydrodymanic fluid film thickness in TRB (tapered roller bearings), and Venner et al [7] showed the film thickness decay in elastohydrodynamically lubricated contacts.…”

Section: Introduction mentioning

confidence: 98%

Influence of the Number of Rollers on a Tapered Roller Bearing

Scari¹,

Magalhães²

2014

JMEA

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Abstract:In roller bearings, the outer ring is usually fixed and the inner ring has the rolling motion. Concerning TRB (tapered roller bearings), this motion generates forces that are transmitted to the outer ring by the tapered rollers. Thus, contact stresses occur and the number of rollers plays a major role with respect to the load distribution. This influence is analyzed in this study by the FEM (finite element method) with commercial code ABAQUS, where two models were evaluated: a common TRB and the same one but with fewer rollers. As an application, a manual automotive transmission was considered for the input loads.

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“…Moreover, [15] have developed an efficient algorithm for fluid pressure calculation defined according to a reformulation of the complementary constraints imposed by the JFO conditions. Alternatively, the finite volume method (FVM), widely utilized in computational fluid dynamic (CFD) simulations, has been proven to be very effective for solving lubrication problem, especially in thermohydrodynamic analysis [16,17], lubrication with discontinuous domains [18,19] and textured surfaces [20], as well as in piston ring applications [21]. The main advantage of the FVM is its conservative characteristic, which in turn enables to impose local and global flow conservation in the discrete formulation.…”

Section: Introductionmentioning

confidence: 99%

A General Finite Volume Method for the Solution of the Reynolds Lubrication Equation with a Mass-Conserving Cavitation Model

et al. 2015

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This contribution presents the development of a general discretization scheme for the solution of Reynolds equation with a mass-conserving cavitation model and its application for the numerical simulation of lubricated contacts to be discretized using irregular grids. Such scheme is based on a hybrid-type formulation, here named as element-based finite volume method that combines the flexibility of the FEM to deal with unstructured grids, while preserving the local and global fluid-flow conservation aspect of the FVM throughout the discretized domain. The accuracy and robustness of the method are successfully tested using several benchmark cases proposed in the recent literature. Simulations of fully or partially textured sliding bearings are finally employed to show the advantages of being able to adopt irregular meshes both in terms of flexibility for the discretization of complex surface features and computational speed.

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A coupled approach for rolling contact fatigue cracks in the hydrodynamic lubrication regime: The importance of fluid/solid interactions

Cited by 23 publications

References 30 publications

Propagation of Large Spalls in Rolling Bearings

Propagation of Large Spalls in Rolling Bearings

Influence of the Number of Rollers on a Tapered Roller Bearing

A General Finite Volume Method for the Solution of the Reynolds Lubrication Equation with a Mass-Conserving Cavitation Model

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