Dynamic simulation for a tapered roller bearing considering a localized surface fault on the rib of the inner race

Liu, Jing; Shao, Yimin; Qin, Xiaomeng

doi:10.1177/1464419317695171

Cited by 6 publications

(4 citation statements)

References 30 publications

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“…The optimal central flat length and crown radius of the roller profile were obtained by a dimensionless curve-fitting formula. Liu et al 31 proposed a dynamic simulation method for a tapered roller bearing with a localized surface fault on the rib of the inner race, and the non-Hertzian contact of tapered roller to raceway and rib was considered. The time-varying deflection excitation caused by the fault was formulated by the method.…”

Section: Introductionmentioning

confidence: 99%

Internal load distribution of single-row tapered roller bearings doubly supporting main shaft of wind turbine

Gao²

2022

Advances in Mechanical Engineering

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In order to accurately understand the internal loading state of the single-row tapered roller bearings doubly supporting the main shaft of wind turbine, a 5-DOF mechanical model of such bearing combination in wind turbine was established which considered the axial preload, bearing ring tilt, and roller crown. The positions of the points on the bearing raceways were described mathematically in the Cartesian coordinate system, and the mathematical relationship between the roller-raceway contact deformations and the bearing ring displacements was derived. The effect of bearing ring tilt caused by external loads on the contact load distributions along rollers was considered by dividing the rollers into laminae. The contact stress distribution between roller and raceway was obtained by iterative calculation of the finite length line contact model. The RMSE of the roller load distributions of the upwind bearing and the downwind bearing is 2.25 kN and 3.02 kN respectively. The obtained smallest size necessary for the roller laminae is 1.25% of the roller length. The bearing ring tilt will cause uneven contact load distribution along the roller, and modification of the roller profile improves the load and stress distribution. The machining error leads to the unbalanced contact stress distribution along the roller.

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Section: Introductionmentioning

confidence: 99%

Internal load distribution of single-row tapered roller bearings doubly supporting main shaft of wind turbine

Gao²

2022

Advances in Mechanical Engineering

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“…Based on previous studies, Houpert [19] developed an analytical approach for determining the loads and moments of TRBs as a function of the given displacement when considering the transition from point to line contact between rollers and raceways with increasing load. Jing Liu [20] investigated the dynamic characteristics of a TRB under a surface fault, via a simplified model considering the contact forces between the roller and raceways. Recently, Zhiwei Wang [21] investigated TRB dynamics performance considering the coupling effects of the vehicle-track system, which established a simplified dynamics model of TRBs, that concluded the vibration environment of the axle-box bearing cannot be ignored in such studies.…”

Section: Introductionmentioning

confidence: 99%

“…number of the bearings is m = 1,2. Based on the analysis above and the literatures results[20,21], the resultant forces of each axle-box bearing are as follows:…”

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confidence: 99%

Influence of wheel-polygonal wear on the dynamic forces within the axle-box bearing of a high-speed train

Wang

Allen

Mei

et al. 2019

Vehicle System Dynamics

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The axle-box bearing is a key component of a high-speed train, providing a safety-critical load path for axial and radial forces transmitted between the wheel-rail interface and the bogie frame. Failure of axle-box bearings can directly affect operational and safety performance of the train, and therefore understanding their operating state is key to predicting potential failure modes and planning maintenance interventions. In this study, a three-dimensional vehicle-track coupled dynamics model, with the inclusion of the axle-box bearings has been developed. Based on the bearing's structural properties and operating characteristics, the coupling effects of the vehicle components relative to the bearing are considered. The model also takes a number of non-linear factors into account, such as time-varying bearing stiffness, bearing clearance, wheel-polygonal wear and the non-linear wheel-rail contact forces. Dynamic analysis of the model has been carried out through numerical simulations that consider different amplitudes and harmonic orders of measured and idealised polygonal wheel wear. Both model analysis and validation was supported by field tests performed on a high-speed rail line. Simulation results show that the amplitude of rolling contact forces of the axle-box bearing increases with vehicle speed and the amplitude of polygonal wear. However, the influence of wear upon the axle-box bearing is found to be small in the low-speed range, but at higher operating speeds, polygonal wear begins to lead to a rapid increase in bearing contact forces and the potential for degradation. As a result of vehicle operations, both high order (17 th to 20 th order) and lower order (1 st to 4 th order) wheel polygonal wear patterns are generated. The former's influence on axle-box bearing forces is more significant. Hence, the identification and rectification of this order of wear should form part of maintenance practice and potentially also be considered in the design of axlebox bearings for high-speed trains.

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“…Bearing manufacturing is a high-precision technology where the material composition, hardness, and micrometric dimensions need to be ensured to meet the product requirements [ 1 , 2 ].…”

Section: Introductionmentioning

confidence: 99%

In-Process Measurement for the Process Control of the Real-Time Manufacturing of Tapered Roller Bearings

Brosed

Zaera²,

Padilla³

et al. 2018

Materials

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Tapered roller bearings can accommodate high radial loads as well as high axial loads. The manufacturing process consists of machining processes for ring and component assembly. In this contribution, the parameters of influence on the measurement procedure were studied. These parameters of influence were classified as environmental, process, and machine parameters. The main objective of this work was to optimize the process using real-time measurements, which required the study of the influence of several parameters on the measurement uncertainty and how to correct their effects.

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Dynamic simulation for a tapered roller bearing considering a localized surface fault on the rib of the inner race

Cited by 6 publications

References 30 publications

Internal load distribution of single-row tapered roller bearings doubly supporting main shaft of wind turbine

Internal load distribution of single-row tapered roller bearings doubly supporting main shaft of wind turbine

Influence of wheel-polygonal wear on the dynamic forces within the axle-box bearing of a high-speed train

In-Process Measurement for the Process Control of the Real-Time Manufacturing of Tapered Roller Bearings

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