A time-varying friction moment calculation method of an angular contact ball bearing with the waviness error

Liu, Jing; Li, Xinbin; Ding, Shizhao

doi:10.1016/j.mechmachtheory.2020.103799

Cited by 34 publications

(18 citation statements)

References 20 publications

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“…The tangential friction moment ML of lubricant film caused by the shearing action of lubricant, differential slipping moments Md induced by the differential ones, rolling friction moments Me produced by the elastic material hysteresis, spinning friction moments Ms created by the spin motion of balls, viscous friction moments Mv generated by the oil-air mixture, and slipping moment Mc engendered by the sliding friction between rings and cage are evaluated based on the nonlinear model of high speed ball bearings with EHL. They are formulated, respectively, as follow [18,33,34].…”

Section: Calculation Of Friction Moments For Power Lossmentioning

confidence: 99%

“…Gao [17] comprehensively considered the effects of hydrodynamic lubrication, thermal generation, Hertzian contact and kinematics of bearing components to study the skidding and over-skidding behaviors of high speed bearings. For the study on friction moments, Liu et al [18] proposed a time-varying friction moment calculation method considering elastic material hysteresis, slipping friction, viscous friction, and tangential friction of lubricant film between bearing components. In addition, the relationship between friction moments and shaft velocity, combined loads, lubrication conditions, surface and machining errors are studied [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Bearing Structure on Oil-air Flow and Temperature of High Speed Ball Bearing by Combining Nonlinear Dynamic and CFD Model

Deng

Zhao

Qian

et al. 2021

Preprint

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To achieve effective cooling for high speed ball bearings, an investigation on the effect of bearing structure on oil-air flow and temperature inside bearing chamber is necessary. However, accurately defining boundary conditions of CFD model for high speed ball bearings has not been addressed completely. Adopting an improved dynamic model of bearings to calculate movements of balls and power loss to set the movement boundary and heat source of CFD model at high-low speeds and light-heavy loads. Then, rotational speed of cage and temperature of outer ring at various loads are tested to validate this proposed method. At high speeds, enlarging sealing degree of outlet not only reduces the temperature rise of bearings and improves the uniformity of temperature distribution, but also promotes the formation of oil-film on balls’ surfaces without increasing power loss. Yet it can reduce the temperature rise but can’t markedly improve the formation of oil-film at low and ultra-high speeds. Moreover, half birfield cage facing nozzle plays an important role in improving oil volume fraction inside the bearing cavity to reduce the temperature rise of bearings, and the next is birfield cage, they are again corrugated cage and half birfield cage back towards nozzle. These research results provide theoretical guidance for the improvement of bearing structure.

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Section: Calculation Of Friction Moments For Power Lossmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Bearing Structure on Oil-air Flow and Temperature of High Speed Ball Bearing by Combining Nonlinear Dynamic and CFD Model

Deng

Zhao

Qian

et al. 2021

Preprint

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show abstract

“…Wang et al 8 studied the surface roughness effects on the friction force and subsurface stresses in an angular contact ball bearing. Liu et al 9 proposed a time-varying friction moment calculation method for an angular contact ball bearing including the waviness. In those waviness models, the waviness forms were established by the sinusoidal function.…”

Section: Introductionmentioning

confidence: 99%

“…In those waviness models, the waviness forms were established by the sinusoidal function. 5–9 Moreover, Ono and Takahasi, 10 Shelly and Ettles, 11 and Tønder 12 also contributed to the bearing surface waviness modeling and its effects on the bearing load capacity and vibrations. The waviness could change the contact condition of the bearing and lead to abnormal vibrations.…”

Section: Introductionmentioning

confidence: 99%

Dynamics of a planetary needle roller bearing considering the waviness

Shi

Liu

Xiao

2022

Proceedings of the Institution of Mechanical Engineers, Part K:

Self Cite

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A dynamic model of a planetary needle roller bearing (PNRB) considering the waviness is proposed. This model can formulate the PNRB dynamic motions under high centrifugal acceleration conditions, which are more complicated than those of shaft-fixed bearings. The waviness distributed on the surfaces of races and needle rollers can change the contact conditions between the needle rollers and races. In this study, the effect of the waviness on the roller-race contact forces, roller-cage impact forces, and the PNRB elements’ dynamics are discussed, which were not studied in the listed literature for the PNRB models. Moreover, a case of a PNRB in a single row planetary gear train is used to analyze the relationship between the needle roller-cage impact force and cage speed variation. The effect of the waviness on the vibration characteristics frequency of PNRB races are also studied.

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“…Comparing with the time-varying displacement excitation model proposed in previous research, Liu et al [9,10] proposed a new model of the race waviness considering the timevarying displacement excitations and time-varying contact stiffness excitations induced by the waviness at the contact position between the roller and race. In addition, the effect of surface waviness on the time-varying friction moments of an angular contact ball bearing was analyzed in their further works [11]. Alfares et al [12] reckoned that the inner race waviness can significantly affect the dynamic characteristics of the grinding spindle-bearing system.…”

Section: Introductionmentioning

confidence: 99%

Dynamic analysis of traction motor in a locomotive considering surface waviness on races of a motor bearing

Liu

Chen

et al. 2021

Rail. Eng. Science

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The traction motor is the power source of the locomotive. If the surface waviness occurs on the races of the motor bearing, it will cause abnormal vibration and noise, accelerate fatigue and wear, and seriously affect the stability and safety of the traction power transmission. In this paper, an excitation model coupling the time-varying displacement and contact stiffness excitations is adopted to investigate the effect of the surface waviness of the motor bearing on the traction motor under the excitation from the locomotive-track coupled system. The detailed mechanical power transmission path and the internal/external excitations (e.g., wheel–rail interaction, gear mesh, and internal interactions of the rolling bearing) of the locomotive are comprehensively considered to provide accurate dynamic loads for the traction motor. Effects of the wavenumber and amplitude of the surface waviness on the traction motor and its neighbor components of the locomotive are investigated. The results indicate that controlling the amplitude of the waviness and avoiding the wavenumber being an integer multiple of the number of the rollers are helpful for reducing the abnormal vibration and noise of the traction motor.

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A time-varying friction moment calculation method of an angular contact ball bearing with the waviness error

Cited by 34 publications

References 20 publications

Effect of Bearing Structure on Oil-air Flow and Temperature of High Speed Ball Bearing by Combining Nonlinear Dynamic and CFD Model

Effect of Bearing Structure on Oil-air Flow and Temperature of High Speed Ball Bearing by Combining Nonlinear Dynamic and CFD Model

Dynamics of a planetary needle roller bearing considering the waviness

Dynamic analysis of traction motor in a locomotive considering surface waviness on races of a motor bearing

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