The Influence of Lubrication on the Dynamic Behaviour of Ball Bearings

Wijnant, Ysbrand H.; Wensing, J.A.; Nijen, G.C. van

doi:10.1006/jsvi.1998.2068

Cited by 61 publications

(30 citation statements)

References 5 publications

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“…The more advanced issues of time variant characteristics and non-linearity were raised and studied by several authors. For example, Wijnat et al [5] reviewed the studies concerning the effect of the Elasto-Hydrodynamic Lubrication (EHL) on the dynamics of REB. Tiwari and Vyas [6] and Tiwari et al in [7,8] studied the effect of the ball bearing clearance on the dynamic response of a rigid rotor.…”

Section: Introductionmentioning

confidence: 99%

Dynamic modelling of wear evolution in rolling bearings

El‐Thalji

Jantunen

2015

Tribology International

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Section: Introductionmentioning

confidence: 99%

Dynamic modelling of wear evolution in rolling bearings

El‐Thalji

Jantunen

2015

Tribology International

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“…The early study of EHL contact stiffness was performed by Wijnant [11], where an approximation formulation was proposed to describe the contact force and mutual approach for circular and elliptical EHL contacts. An implicit stiffness formulation for the EHL contact was further obtained and applied to investigate the effect of the lubricant on the dynamic behavior of rolling element bearings [12,13]. Then, based on the observation that the EHL pressure resembles a pure hydrodynamic pressure for low loads while approaches to the dry Hertzian contact pressure for high loads, Wiegert [14] developed the EHL contact stiffness approximated by a series connection of a hydrodynamic and a Hertzian force element.…”

Section: Introductionmentioning

confidence: 99%

The influence of elastohydrodynamic lubrication on the stiffness of deep groove ball bearing

Zhang¹,

Xie²,

Lv³

et al. 2016

J. vibroeng.

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An accurate modeling of roller bearing element, considering the complex contact behavior and load conditions, is very important to the geared-rotor system design. This paper presents an enhanced bearing stiffness matrix for a deep groove ball bearing by including the elastohydrodynamic lubrication (EHL) effects in the ball-raceway contact. The bearing model is subjected to the coupled lateral-translational loads. The EHL contact is calculated by employing the multilevel method. Then, the EHL result was used to drive the relationship between the contact force and mutual approach. Moreover, the effect of the centrifugal inertial force on the ball elements resulting from the circumferential cage motion is considered. New equilibrium equations of the ball bearing considering the EHL contact model were established, and an enhanced bearing stiffness matrix was given. The dominant stiffness coefficients of deep groove ball bearing due to external loads under both lubricated and dry contact conditions are compared. Parametrical studies are also carried out to investigate the influence of the EHL on the stiffness matrix. Results show that the EHL has a negligible effect on the radial stiffness coefficients for all load conditions. However, the EHL has more influence on the rotational and coupling stiffness coefficients.

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“…This is reasonable in the hydrodynamic lubrication, but it would not produce enough accurate solution for EHL contacts. Wijnant [15][16][17] developed a dynamic model to study the dynamic characters of EHL point contacts, with fully flooded and starved conditions analyzed. The results indicated that increasing the load or decreasing the speed yielded the increase of stiffness, while increasing the load or speed yielded the decrease of damping.…”

Section: Introductionmentioning

confidence: 99%

Effect of elastohydrodynamic lubrication on the dynamic analysis of ball bearing

Dong

Liu

Jing

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part K:

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A numerical dynamic analysis of ball bearing is presented. The normal contact forces between balls and races are calculated, respectively, based on Hertz contact theory and elastohydrodynamic lubrication theory, and the results are compared to study the effect of elastohydrodynamic lubrication on the simulation. The dynamic model of ball bearing is developed with the assumptions that outer race is fixed in space and other elements have six degrees of freedoms. The lubricant film between balls and races is equivalent as the spring-damper system when elastohydrodynamic lubrication effect is considered. The equations of motion are solved by the fourth-order Runge-Kutta integration method with variable steps. The results indicate that the effect of elastohydrodynamic lubrication has great influence on the dynamic analysis result when the load is slight. As the load increases, the effect of elastohydrodynamic lubrication becomes small.

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The Influence of Lubrication on the Dynamic Behaviour of Ball Bearings

Cited by 61 publications

References 5 publications

Dynamic modelling of wear evolution in rolling bearings

Dynamic modelling of wear evolution in rolling bearings

The influence of elastohydrodynamic lubrication on the stiffness of deep groove ball bearing

Effect of elastohydrodynamic lubrication on the dynamic analysis of ball bearing

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