Simulation and experimental verification of fatigue strength evaluation of journal bearing bush

Dong, Quan; Zhang, Yin; Li, Hu‐Lin; Gao, Gengyuan; Zhong, Ning; Chen, Yonghong

doi:10.1016/j.engfailanal.2019.104275

Cited by 21 publications

(8 citation statements)

References 21 publications

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“…The geometry parameters refer to the previous study in table 1, using secondary data from the previous study. The material Babbit alloy uses in bearings [16]. The simulation method on CFDs uses Fluent in Ansys Workbench 19 R3, with the hexahedral meshing of defined boundary conditions.…”

Section: Methodsmentioning

confidence: 99%

“…The greater the value of the eccentricity ratio, the more the oil film pressure value and the bearing statement's deformation value. According to previous studies [16], [29] can cause failure or catastrophe and reduce engine efficiency. A comparison graph was obtained from the simulation results that represents the ratio of eccentricity to maximum pressure in the journal bearing.…”

Section: Methodsmentioning

confidence: 99%

“…Lubrication fluids used are generally types of SAE, with various series, one of which is 10W-30 for the automotive industry, along with the development of SAE products 10W-30 or 40 that can be used in rotating machinery [15]. The results of simulations and experiments explain the failure mechanism comprehensively since the decreased lubrication conditions cause a decrease in bearing performance [16]. Full synthetic type lubrication has the same primary material as other types of lubricants, namely petroleum preparations.…”

Section: Introductionmentioning

confidence: 99%

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CFD Analysis of the Eccentricity Ratio on Journal Bearing due to Differences in Lubrication Type

Failawati

Yamin

Poernomosari

2022

JNEST

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Lubrication on journal bearings plays a vital role in reducing metal-to-metal friction, separates the reliable components. Often there is a decrease in lubrication conditions, which will cause failure or a change in roughness to the inner surface. Direct metal-to-metal contact between the bearing's inner and journal surface will gradually deform the bearing. In diesel engine applications, lubrication is aiming to minimize failure or damage to the journal bearing. This paper investigates a 3D CAD model of a journal bearing using the ANSYS Computational Fluid Dynamics software. The effect of eccentricity ratio is analyzed for semisynthetic lubricating oil R3 10W-30 and synthetic oil. The result shows that synthetic oil has a considerable pressure compared to R3 10W-30, especially at a higher eccentricity ratio.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

CFD Analysis of the Eccentricity Ratio on Journal Bearing due to Differences in Lubrication Type

Failawati

Yamin

Poernomosari

2022

JNEST

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“…Therefore, silver and copper are considered to be suitable as transition coatings in electro-spark deposition engineering. The tin-based Babbitt alloy B83 has good embedding and compliance and can play the roles of anti-friction and anti-scuffing in the process of bearing operation; especially in the initial running-in process of operation, it is a particularly excellent surface running material [16][17][18]. Graphene has been used to improve tribological properties due to its extraordinary properties [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

The Characterization of Running-In Coatings on the Surface of Tin Bronze by Electro-Spark Deposition

Zhengchuan

Коноплянченко²,

Tarelnyk³

et al. 2022

Coatings

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Antifriction materials, such as silver, copper, Babbitt B83, and graphene oxide (GO), were used to prepare running-in coatings on the surface of bronze QSn10-1 by electro-spark deposition (ESD). The analyses of mass transfer, roughness, thickness, morphology, composition, nanoindentation, and tribological properties of the coatings were investigated. The results showed that the running-in coatings were dense with refined grains that were uniformly distributed and in a metallurgical bond state with the tin bronze substrate. At optimum process parameters, the mass transfer was 244.2 mg, the surface roughness was 15.9 μm, and the thickness of the layers was 160 μm. The diffraction peaks clearly indicated the phases corresponding to α-Sn, SbSn, Cu6Sn5, and Cu, and a phase of Ag3Sn appeared. The modulus and the hardness of the running-in coatings were 24.9% and 14.2% of the substrate, and the deformation ratio of the coatings was 10.2% higher than that of the substrate. The friction coefficient of the running-in coatings was about 0.210 after the running-in stage, which was 64.8% of that of the substrate (0.324). The main wear mechanism of the running-in coatings under optimal process parameters is plastic deformation, scratching, and slight polishing. The running-in coating deformation under the action of high specific loads provides the automatic adjustment of parts and compensation for manufacturing errors.

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“…Allmaier [17] and Priestner et al [18] used Miba's journal bearing test rig to experimentally validate the simulation and get the refined simulation of the friction, including extensive oil and the wear profiles. Relying on a Sapphire bearing bush fatigue test bed, Ding et al [19] and Qin et al [20] studied the ultimate load of the journal bearings with the different materials and the surface treatment processes and made the assessments of the strength as well as the remaining useful life.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Experimental Validation of the Tribological and Dynamic Characteristics of Journal Bearings

Yang

Sun

et al. 2021

E3S Web Conf.

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Sliding bearings are the main kinematic pair of a Stirling engine, and one of the main sources of friction power loss and excitation force. There is a coupling effect between the lubrication state and the excitation force. In this paper, the dynamic model of a Sapphire bearing fatigue test bed, which includes thermo-elasto-hydrodynamic (EHD) property, is established and the accuracy of the model is verified by the experimental data. Based on the model, the effects of the load, the oil supply temperature, the oil supply pressure, the bearing clearance on the tribological and dynamic characteristics are studied. With an increase in the load, the orbital path of the journal moves downward, the lubrication state changes from the full hydrodynamic lubrication to the boundary lubrication, the friction power loss increases, and the bearing excitation frequency increases. Due to the decrease of the oil viscosity, the hydraulic friction power loss decreases, but the friction power loss derived from the asperity contact increase, so does the total friction power loss. With the increase of the radial clearance, the shape of the orbital path and the minimum oil film thickness remain unchanged. The increase of the bearing clearance results in the collisions between the journal and bearing bush, thus the amplitude of the frequency multiplication component in the bearing load increases, and the asperity and the total friction power loss increase.

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Simulation and experimental verification of fatigue strength evaluation of journal bearing bush

Cited by 21 publications

References 21 publications

CFD Analysis of the Eccentricity Ratio on Journal Bearing due to Differences in Lubrication Type

CFD Analysis of the Eccentricity Ratio on Journal Bearing due to Differences in Lubrication Type

The Characterization of Running-In Coatings on the Surface of Tin Bronze by Electro-Spark Deposition

Analysis and Experimental Validation of the Tribological and Dynamic Characteristics of Journal Bearings

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