Operational performance of textured journal bearings lubricated with a contaminated fluid

Dadouche, Azzedine; Conlon, Martin J.

doi:10.1016/j.triboint.2015.09.022

Cited by 53 publications

(25 citation statements)

References 8 publications

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“…Such surface texturing methods themselves are not new and are, for example, widely used in other parts of the internal combustion engine, namely, in honing of the cylinder liners. For journal bearings it is experimentally shown that surface textures can affect their tribological properties [22,23] as well as the damping properties and the compatibility of the journal bearing with contaminants [24,25]. The theoretical understanding of the underlying effects of surface textures is currently limited [26].…”

Section: New Classes Of Surface Textures and Coatingsmentioning

confidence: 99%

Friction and Wear in Automotive Journal Bearings Operating in Today’s Severe Conditions

Sander¹,

Allmaier²,

Priebsch³

2016

Advances in Tribology

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A current trend in the transport sector seeks to increase the vehicle efficiency and to cut fuel consumption which leads to new technologies and advancements in modern and future combustion engines. Some of these technical progresses lead to highly stressed engine parts and new challenges arise, particularly for journal bearings. The increasing thermal and mechanical load caused by downsized and turbocharged engines, friction reduction by employing low-viscosity lubricants and other emission reduction measures-for utilizing stop-start systems-put additional stress on the crankshaft journal bearings. This contribution focuses on highly stressed journal bearings which operate in the boundary, mixed and hydrodynamic lubrication regime. Therefore, measurements on a journal bearing test-rig are performed which allow an extensive verification of the numerical investigation. For the numerical analysis of friction and wear, a mixed elasto-hydrodynamic simulation approach is developed, which considers the elastic deformation of the contacting components, the complex rheological behaviour of the lubricant and metal-metal contact if the lubricant is unable to separate the contacting surfaces. Both the rheological data and the surface roughness parameters are obtained from measurements. The current challenges are studied in four application-oriented examples and the influencing parameters on a reliable friction and wear prediction are explored.

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Section: New Classes Of Surface Textures and Coatingsmentioning

confidence: 99%

Friction and Wear in Automotive Journal Bearings Operating in Today’s Severe Conditions

Sander¹,

Allmaier²,

Priebsch³

2016

Advances in Tribology

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“…To this end, various test stands were developed for carrying out experiments on appropriateness of application of filters for measuring contamination level and matching oil film thickness in sliding pair [39], as a result, experimental strategies were proposed for testing the role of various additives in limiting degree of bearing wear and temperature rise and in forming minimum oil layer thickness in a lubricating contact. The effect of surface texture on operational characteristics and life of journal bearings working in a contaminated lubrication system was also investigated [42]; to this end, experimental tests were performed on smooth and textural surfaces of bearings operating under different loads and with different speeds; for the tests lubrication circumference was so modified as to allow for controlling injection of a contaminated mixture (oil / Al oxide pulver) into the main oil flux. In the subject -matter literature can be found research results focused on size and hardness of solid particles, lubricating film thickness as well as crack propagation [43].…”

Section: Tests Of Bearings Lubricated With Contaminated Liquidsmentioning

confidence: 99%

Selected Problems of Experimental Testing Marine Stern Tube Bearings

Barszczewska

Piątkowska

Litwin

2019

Polish Maritime Research

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“…Dadouche et al [30] investigated the operational performance of textured journal bearings lubricated with contaminated fluid. Special attention was focused on the load-carrying capacity, friction, and wear under different contamination levels in the lubricant.…”

Section: Introductionmentioning

confidence: 99%

Effect of Surface Topography and Structural Parameters on the Lubrication Performance of a Water-Lubricated Bearing: Theoretical and Experimental Study

2019

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This study explored the influence of the surface topography of a bushing on the lubrication performance of a water-lubricated bearing. Bushing deformations were considered in the mathematical model. Theoretical calculations and experiments were performed. The test data corresponded well with the simulation. The main stiffness and cross stiffness coefficients were measured and compared with the theoretical values, and the empirical formula of friction coefficient was fitted based on the test data.

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Operational performance of textured journal bearings lubricated with a contaminated fluid

Cited by 53 publications

References 8 publications

Friction and Wear in Automotive Journal Bearings Operating in Today’s Severe Conditions

Friction and Wear in Automotive Journal Bearings Operating in Today’s Severe Conditions

Selected Problems of Experimental Testing Marine Stern Tube Bearings

Effect of Surface Topography and Structural Parameters on the Lubrication Performance of a Water-Lubricated Bearing: Theoretical and Experimental Study

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