An Approach to Understanding Micro-Spalling in High-Speed Ball Bearings Using a Thermal Elastohydrodynamic Model

Gloeckner, Peter; Sebald, Wilhelm; Bakolas, Vasilios

doi:10.1080/10402000902774267

Cited by 25 publications

(9 citation statements)

References 4 publications

(4 reference statements)

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“…Cocks and Tallian [3] highlighted the effect of rolling element sliding in rolling bearing on the smearing damage. Gloeckner et al [4] and Dotzel [5] pointed out that sliding occurring in raceway/ ball contact makes significant contribution to the micro-spalling and thermal characteristics of high speed ball bearings in aircraft engine applications.…”

Section: Introductionmentioning

confidence: 99%

Investigation of skidding in angular contact ball bearings under high speed

Wang

Zhang

et al. 2015

Tribology International

105

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Section: Introductionmentioning

confidence: 99%

Investigation of skidding in angular contact ball bearings under high speed

Wang

Zhang

et al. 2015

Tribology International

105

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“…At high velocities of interacting surfaces, despite several works in this area [39][40][41][42][43], some problems have not yet been resolved. The thermal load of the factual contact zone, velocity of the surface, tribo-chemical reaction of the environment and resistance of deformation increase, whereas time of the thermal action and thickness of the superficial heated up layer decrease.…”

Section: Analysis Of Results Of the Experimental Researchesmentioning

confidence: 99%

A New Concept of the Mechanism of Variation of Tribological Properties of the Machine Elements Interacting Surfaces

Tumanishvili¹,

Nadiradze²,

Tumanishvili³

2021

Tribology in Materials and Manufacturing - Wear, Friction and Lubrication

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The methods of estimation and prediction of tribological properties of the contact zone of interacting elements of machines are characterized by the low informativeness and accuracy that complicates provision of the proper tribological properties and hinders reliable and effective operation of machines. For obtaining more wide information about factors influencing tribological properties of the interacting surfaces, the experimental researches on the high speed (up to 70-m/s) and serial twin-disk machines were carried out. Our researches have shown that with different properties and degrees of destruction of the third body, the coefficient of friction can change up to 10 times or more, the wear rate up to 102-104 times, etc. This was the basis for a new concept of the mechanism of variation of tribological properties of interacting surfaces. The researches have shown a dependence of tribological properties of the contact zone on the properties and destruction degree of the third body that was assumed as a basis of new concept of the mechanism of variation of tribological properties of these surfaces. The monitoring of the third body destruction onset and development was carried out in the laboratory conditions and a criterion of the third body destruction was developed. The reasons of the negative, neutral and positive friction and mild, severe and catastrophic wear are shown.

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“…Thus, it is believed that RCF-based models alone should not be used beyond the ‘transition point’. Some rolling bearing failures, reported in the past, might have been considered as surface initiated fatigue failures; 22,23 although the application was at high speeds, high loads and unclear lubrication conditions. Indeed, is fairly possible that these type of failures are to be associated to a seizure process rather that to normal surface fatigue or micropitting.…”

Section: Rolling Bearing Speed-load Limit and Seizure Riskmentioning

confidence: 99%

Rolling bearing seizure and sliding effects on fatigue life

Morales-Espejel

Gabelli

2018

Proceedings of the Institution of Mechanical Engineers, Part J:

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The effects of kinematic sliding on rolling contact fatigue life have been discussed in many occasions, often with some disregard of the fundamental principles of tribology. In this paper, the authors’ intention is to discuss this issue with a perspective as objective as possible and performing a study on factual and known scientific knowledge, applying tribology modelling and methods. The effects of kinematic sliding of Hertzian contacts are studied from three different standpoints: (1) by analysing the combination of sliding speed and contact pressure giving rise to seizure, that is high instantaneous contact temperatures leading to film collapse, (2) by assessing the possible effects of sliding to surface traction and fatigue, (3) by discussing other possible effects of sliding in heavily loaded lubricated contacts as the concurrent damage mechanism caused by wear and rolling contact fatigue. Throughout the paper, different numerical models are presented and discussed alongside with some experimental data. This approach provides a comprehensive assessment of the various phenomena related to the kinematic sliding of rolling bearings. The different mechanisms involved and the interaction of sliding with the elastohydrodynamic lubricant film, frictional stress, wear and fatigue are discussed, and their significance to the performance of the bearing is qualified.

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An Approach to Understanding Micro-Spalling in High-Speed Ball Bearings Using a Thermal Elastohydrodynamic Model

Cited by 25 publications

References 4 publications

Investigation of skidding in angular contact ball bearings under high speed

Investigation of skidding in angular contact ball bearings under high speed

A New Concept of the Mechanism of Variation of Tribological Properties of the Machine Elements Interacting Surfaces

Rolling bearing seizure and sliding effects on fatigue life

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