The effect of solid contamination on the wear and critical failure load in a sliding lubricated contact

Odi-Owei, S.; Roylance, B. J.

doi:10.1016/0043-1648(86)90173-0

Cited by 28 publications

(8 citation statements)

References 7 publications

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“…The influence of solid particles on the lubrication mechanism of gears in the running-in process was not considered in all the above studies. There are many studies on EHL considering particles at home and abroad (Barwell, 1984;Bretherton, 1962;Brunn, 1977;Chandrasekaran et al, 1985;Chao and Centers, 2008;Cusano and Sliney, 2008;Dai and Khonsari, 1993;Dwyer-Joyce et al, 1994;Abdel-Aal, 2003;Leal, 1980;Odi-Owei and Roylance, 1986). Moreover, Dong (2011) studied the effect of solid particles on low-viscosity lubricants in the lubrication process, and the effect of solid particles' content on the lubricating property of low-viscosity lubricants was discussed.…”

Section: Introductionmentioning

confidence: 99%

Transient elastohydrodynamic lubrication analysis of spur gears running-in considering effects of solid particles and surface roughness

Huang

Wang

2016

Industrial Lubrication and Tribology

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Purpose – This paper aims to investigate the mechanism of spur gears running-in and to solve the lubrication problems of teeth running-in. Design/methodology/approach – The elastohydrodynamic lubrication (EHL) model considering solid particles was established by applying multi-grid and multiple-grid integration methods to the numerical solution. Findings – In the region where debris settle, transient pressure increases sharply, and a noticeable increase in the running-in load causes a remarkable increase in both the centre and maximum pressures and a slight increase in the minimum film thickness. Roughness wavelength makes a considerable difference to the minimum film thickness at double-to-single tooth transient. A considerable increase in rotation velocity can cause a remarkable reduction in both the centre and maximum pressures but an amazing increase in the minimum film thickness. The effects of roughness amplitude on the maximum pressure are considerably distinct. Research limitations/implications – Research on EHL of spur gears in the running-in process considering solid particles, surface roughness and time-variant effect is meaningful to practical gears running-in. Thermal effect can be included in the next study. Practical implications – The analysis results can be applied to predict and improve lubrication performance of the meshing teeth. Social implications – The aim is to reduce gears’ manufacture and running-in costs and improve economic performance. Originality/value – The EHL model that considers solid particles was established. The Reynolds equation was deduced taking the effects of solid particles into account. The EHL of spur gears running-in was investigated considering the time-variant effect, surface roughness, running-in load and rotation speed.

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Section: Introductionmentioning

confidence: 99%

Transient elastohydrodynamic lubrication analysis of spur gears running-in considering effects of solid particles and surface roughness

Huang

Wang

2016

Industrial Lubrication and Tribology

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“…Such effects are observed in various machine elements and to greater extent when there is sliding motion involved. In the latter case, the effect of abrasive solid contaminants on the critical failure load is strong, and the affected elements may fail sooner and at lighter loads from catastrophic wear such as scuffing [143].…”

Section: Detrimental Effects Of Solid Contaminants In Concentrated Contactsmentioning

confidence: 99%

A state-of-the-art review on the effects of particulate contamination and related topics in machine-element contacts

Nikas

2010

Proceedings of the Institution of Mechanical Engineers, Part J:

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Contamination of machine-element contacts by solid particles is a serious problem in all industrial sectors. Particles ranging in size from nanometres to micrometres are responsible for increased wear and for even catastrophic failures of bearings, gears, seals, mechanisms, and machines. The wear such contaminants can cause is abrasion, surface indentation, flaking, and even scuffing, depending on the operating conditions and the mechanical properties of the particulates. The literature on the effects of debris particles in mechanism and machine reliability is voluminous. There are theoretical studies covering the entrainment, entrapment, and passage of particles through concentrated contacts, experimental and theoretical studies on the wear caused in such incidents, studies on the effects of air and lubricant filtration on machine life, and other related research work. The goal is to determine the consequences of having debris particles in a mechanical system and to develop methods to prevent the presence of particles in order to maximize the life expectancy of the system. This article is a review of the related research available in the literature. It covers more than 150 years of research, with the largest volume of work concentrated in the last 30 years. The review discusses over 230 of the most important publications and aims to be a definitive point of reference for the work done up to the year 2009.

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“…Many researchers have already studied the influence of particle size [6,7], shape [8], concentration [7], sliding velocity [9][10][11], and hardness [5,12] on abrasive wear. However, there is limited study on the role of contaminants with low or medium hardness in wear process.…”

Section: Introductionmentioning

confidence: 99%

Effects of temperature on sliding wear process under contaminated lubricant test conditions

Yuan

Peng

Zhou

et al. 2004

Wear

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The effect of solid contamination on the wear and critical failure load in a sliding lubricated contact

Cited by 28 publications

References 7 publications

Transient elastohydrodynamic lubrication analysis of spur gears running-in considering effects of solid particles and surface roughness

Transient elastohydrodynamic lubrication analysis of spur gears running-in considering effects of solid particles and surface roughness

A state-of-the-art review on the effects of particulate contamination and related topics in machine-element contacts

Effects of temperature on sliding wear process under contaminated lubricant test conditions

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