Reliability analysis of rolling bearings considering internal clearance

Yu, Aodi; Huang, Hong‐Zhong; Li, He; Li, Yanfeng; Bai, Song

doi:10.1007/s12206-020-2206-9

Cited by 18 publications

(5 citation statements)

References 25 publications

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“…The non-linear Eqs. (39) are solved simultaneously for each roller to calculate the roller moves {v} T = {vr, vx, ψ} by using the Newton-Raphson iterative method. Roller-race (Qi, Qo) and roller end-flange (Qf) can be calculated after solving Eqs.…”

Section: Roller and Bearing Equilibrium Equationsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of different roller end-flange constructions on the fatigue life of the cylindrical roller bearings: A novel flange deformation formula

Bayrak,

Sagirli

2023

Eksploatacja i Niezawodność – Maintenance and Reliability

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This paper performs the fatigue life analysis of the radial Cylindrical Roller Bearings (CRBs) with consideration of various roller end-flange shapes such as toroidal-toroidal, spherical-toroidal, and spherical-conical. A novel formula for each flange contact deformation in cylindrical roller bearing with different roller end-flange geometry including toroidal geometry is developed. Inner ring misalignment angle and radial deflection results obtained from the present study are verified with numerical and experimental results from the literature. The results approach to that of literature when the flange is changed from toroidal geometry to conical geometry. Using formulas developed in the present study, the effect of various roller end-flange geometries on the bearing life is investigated for different external loadings. It is observed that the bearing life increases when the roller end and flange are changed to toroidal geometry.

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Section: Roller and Bearing Equilibrium Equationsmentioning

confidence: 99%

“…Internal bearing clearance is another design (geometrical) factor that affects the bearing internal load distributions, hence the bearing life. Its effect on the bearing life has been a matter of study by some researchers [7,27,39].…”

Section: Introductionmentioning

confidence: 99%

Effect of different roller end-flange constructions on the fatigue life of the cylindrical roller bearings: A novel flange deformation formula

Bayrak,

Sagirli

2023

Eksploatacja i Niezawodność – Maintenance and Reliability

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“…At the component level, the focus is on power electronics, utilizing empirical data or physical analysis of failures to model and calculate reliability indexes and assess their reliability [5,6]. On the other hand, system-level analysis involves devices or systems composed of numerous components, and qualitative analysis is achieved by modeling, analyzing faults, and calculating reliability indicators in different ways [7]. Several methods have been proposed and updated over the years for system-level reliability assessment.…”

Section: Introductionmentioning

confidence: 99%

A digital twin based reliability assessment of Superbuck converters

Xia

Yue

Chen

et al. 2023

Meas. Sci. Technol.

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Addressing the challenge of assessing the reliability of "Long-life, high-reliability" DC/DC analog converters in submarine observation networks and space power systems, which have limited internal observation points and insufficient valid information, and initial assessment rendered unreliable with the long-term operation of the converter. This paper proposes a novel method based on digital twin technology.The method eliminates the need for measuring internal variables, and only requires the measurement of the converter's ripple peak-to-peak. A digital Twin(DT) is constructed based on the underlying mechanism, and the parameters of the operating converter are identified through the collection of ripple peak-to-peak, which are then injected into the digital twin for dynamic tracking of the physical entity. By obtaining internal current and voltage of the DT and utilizing the Markov model, the reliability of the converter can be assessed.This method offers real-time reliability assessment without the need for additional measurement points. To validate the effectiveness of the proposed approach, a Superbuck converter is used as an example to demonstrate the high fidelity of the DT through isomorphic single-sample repeatability and isomorphic multiple-sample consistency experiments.

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“…Data on the heat release of friction units can serve as an indicator of their technical condition and a combination of effective methods, techniques and technical means for diagnosing mechanical transmission units will provide increased reliability [1][2][3][4][5]. For bearing assemblies, measuring not the amount of heat released but the friction temperature in the wear zone is advisable.…”

Section: Introductionmentioning

confidence: 99%

Procedure for Simulation of Stable Thermal Conductivity of Bearing Assemblies

Pastukhov¹,

Timashov²

2023

adeletters

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The article developed a methodological basis for implementing automatic diagnostics based on thermal analysis of bearing assemblies. The diagnostic criteria of the technical operation condition and the procedure for determining the temperature ratio inside and outside the bearing unit based on the finite element analysis (FEA) of stable thermal conductivity have proven to be justified. Method of simulation of stable thermal conductivity of bearing units using KOMPAS-3D software and APM FEM finite element analysis module is proposed. The developed method was tested in practice and verified based on the results of theoretical and experimental studies. The developed method enables the determination of the relationship between the observed temperature on the surface of the bearing units and the friction temperature in the wear zone.

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Reliability analysis of rolling bearings considering internal clearance

Cited by 18 publications

References 25 publications

Effect of different roller end-flange constructions on the fatigue life of the cylindrical roller bearings: A novel flange deformation formula

Effect of different roller end-flange constructions on the fatigue life of the cylindrical roller bearings: A novel flange deformation formula

A digital twin based reliability assessment of Superbuck converters

Procedure for Simulation of Stable Thermal Conductivity of Bearing Assemblies

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