Parametric Testing and Heat Generation Modeling of 133-mm Bore Ball Bearings: Part II—Results with Silicon Nitride Rolling Elements

Forster, Nelson H.; Svendsen, Vaughn; Givan, Garry D.; Thompson, Kevin L.; Dao, Ngoc Ha; Nicholson, Brian D.

doi:10.1080/10402004.2010.540770

Cited by 10 publications

(5 citation statements)

References 6 publications

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“…Forster et al. 7 also tested a hybrid version of the 133 mm bearing, where the M50 balls are replaced by silicon nitride balls; the objective is to evaluate impact on bearing heat generation with ceramic rolling elements. Two sets of test data, one with M50 balls and the other with silicon nitride balls, under identical operating are published.…”

Section: Experimental Heat Generation Data and Model Validationmentioning

confidence: 99%

“…Two sets of test data, one with M50 balls and the other with silicon nitride balls, under identical operating are published. 7 Corresponding to these test conditions, ADORE simulations are obtained to validate the model predictions. Again, in absence of any measurement of leaked lubricant and in view of limited test conditions, the fraction of leaked lubricant and effective lubricant density for modeling churning and drag effects are assumed to be the same as those used for the 160 mm bearing.…”

Section: Experimental Heat Generation Data and Model Validationmentioning

confidence: 99%

“…Experimental data on this bearing are obtained as a part of a project at Rolls-Royce Corporation. The second bearing is the 133 mm angular contact ball bearing, used by Forster et al 6,7 ; the experimental heat generation data are available in the publications. Finally, experimental data on a 146.50 mm bore cylindrical roller bearing are also obtained at Rolls-Royce.…”

Section: Experimental Heat Generation Data and Model Validationmentioning

confidence: 99%

“…Thus, when churning and drag losses constitute majority of overall bearing heat generation, the heat generation predictions by the quasi-static models remain relatively insensitive to load. Recently, Forster et al, 6,7 while presenting an empirical bearing heat generation model for a 133 mm bore angular contact ball bearing in terms of a simple correlation between experimentally measured heat generation and several operational variables, have demonstrated that heat generation predicted by SHABERTH is relatively insensitive to applied load. Subsequent to this work, Nicholson et al 8 used ADORE 9 to demonstrate that the dynamic model, which includes effect of lubricant traction, does show a load dependence of bearing heat generation.…”

Section: Introductionmentioning

confidence: 99%

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Thermal interactions in rolling bearings

Gupta

Taketa

Price

2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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Rolling bearing dynamics model, based on classical differential equations of motion of bearing elements coupled with thermal interactions, is presented. While churning and drag effects are based on classical laminar and turbulent flow theories, independently measured lubricant rheology, including shear dependence of viscosity, is used to model lubricant traction. The energy equation is integrated through the lubricant film to first compute Newtonian traction with thermal effects. Viscosity dependence on shear stress is then applied to model “shear-thinning” effects. At very high contact pressure and very low slide-to-roll ratios material creep effects, where the behavior of lubricated and dry contacts is similar, are implemented, while a shear stress limit is applied at very high slide-to-roll ratios. Traction predictions for a typical contact in a traction rig show good agreement with experimental traction data. Transient heat generations are time-averaged over thermal time step to compute time-varying temperature fields in the bearing, which alter properties of bearing materials, operating bearing geometry, and rheology of the lubricant. As the transient solutions converge to stable operating temperatures, bearing heat generation approaches the expected steady-state value. Heat generation predictions for both ball and rolling bearings are in good agreement with measured experimental data.

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Section: Experimental Heat Generation Data and Model Validationmentioning

confidence: 99%

Section: Experimental Heat Generation Data and Model Validationmentioning

confidence: 99%

Section: Experimental Heat Generation Data and Model Validationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Thermal interactions in rolling bearings

Gupta

Taketa

Price

2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…Silicon nitride (Si 3 N 4 ) is an excellent material with unique properties and has excellent comprehensive properties, for example, high strength, high hardness, low density and ultra-high speed. Its high-temperature mechanical properties are the primary factor in the field of aerospace and equipment manufacturing (Wang et al , 2000; Dempsey et al , 2005; Bocanegra-Bernal and Matovic, 2010; Forster et al , 2011; Li et al , 2021). As early as the past century, Aramaki et al tested the silicon nitride ball bearing by grease or oil-gas system lubrication and compared it with the ordinary steel ball bearing (Aramaki et al , 1988).…”

Section: Introductionmentioning

confidence: 99%

Experiment and simulation analysis of tribological and dynamic characteristics in aeroengine hybrid ceramic bearing

Chen,

Long,

Song

et al. 2023

AEAT

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Purpose This paper aims to research the tribological and dynamic characteristics of aeroengine hybrid ceramic bearings through wear experiments and simulation analysis. Design/methodology/approach First, the authors carried out wear experiments on Si3N4–GCr15 and GCr15–GCr15 friction pairs through the ball-disc wear test rig to explore the tribological properties of their materials. Second, using ANSYS/LS-DYNA simulation software, the dynamic simulation analysis of hybrid bearings was carried out under certain working conditions, and the dynamic contact stress of all-steel bearings of the same size was simulated and compared. Finally, the change of the maximum contact stress of the main bearing under the change of load and rotation speed was studied. Findings The results show that the Si3N4–GCr15 pair has better tribological performance. At the same time, under the conditions of high speed and heavy load, the simulation analysis shows that the contact stress between the ceramic ball and the raceway of the ring is smaller than the steel ball. That is, hybrid bearings have better transient mechanical properties than all-steel bearings. With the speed increasing to 12,000 r/min, the maximum stress point will shift in the inner and outer rings. Originality/value In this study, the tribological and transient mechanical properties of Si3N4 material were comprehensively analyzed through wear experiments and dynamic simulation analysis, which provided a reference for the design of hybrid bearings for next-generation aeroengines.

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Characterization and performance analysis of 3D reconstruction of oil-lubricated Si3N4–GCr15/GCr15–GCr15 friction and wear surface

Chen

Liu³

et al. 2020

J Therm Anal Calorim

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Parametric Testing and Heat Generation Modeling of 133-mm Bore Ball Bearings: Part II—Results with Silicon Nitride Rolling Elements

Cited by 10 publications

References 6 publications

Thermal interactions in rolling bearings

Thermal interactions in rolling bearings

Experiment and simulation analysis of tribological and dynamic characteristics in aeroengine hybrid ceramic bearing

Characterization and performance analysis of 3D reconstruction of oil-lubricated Si3N4–GCr15/GCr15–GCr15 friction and wear surface

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