Effects of surface texture on the lubrication performance of the floating ring bearing

Pei, Shiyuan; Xu, Haibo; Meng, Yue; Shi, Fanghui; Hong, Jun

doi:10.1016/j.triboint.2016.05.014

Cited by 39 publications

(20 citation statements)

References 20 publications

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“…verified that textures significantly increased the side leakage and reduced the temperature rise [228].…”

Section: Numerical Multi-scale Modelingmentioning

confidence: 76%

“…The same multi-scale methodology was then applied to investigate the influence of surface texture on the lubrication performance of floating ring bearings including thermal effects. Nine different texture patterns were analyzed, and the results verified that textures significantly increased the side leakage and reduced the temperature rise [228].…”

Section: Numerical Multi-scale Modelingmentioning

confidence: 86%

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Multi-Scale Surface Texturing in Tribology—Current Knowledge and Future Perspectives

2019

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Surface texturing has been frequently used for tribological purposes in the last three decades due to its great potential to reduce friction and wear. Although biological systems advocate the use of hierarchical, multi-scale surface textures, most of the published experimental and numerical works have mainly addressed effects induced by single-scale surface textures. Therefore, it can be assumed that the potential of multi-scale surface texturing to further optimize friction and wear is underexplored. The aim of this review article is to shed some light on the current knowledge in the field of multi-scale surface textures applied to tribological systems from an experimental and numerical point of view. Initially, fabrication techniques with their respective advantages and disadvantages regarding the ability to create multi-scale surface textures are summarized. Afterwards, the existing state-of-the-art regarding experimental work performed to explore the potential, as well as the underlying effects of multi-scale textures under dry and lubricated conditions, is presented. Subsequently, numerical approaches to predict the behavior of multi-scale surface texturing under lubricated conditions are elucidated. Finally, the existing knowledge and hypotheses about the underlying driven mechanisms responsible for the improved tribological performance of multi-scale textures are summarized, and future trends in this research direction are emphasized.

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“…verified that textures significantly increased the side leakage and reduced the temperature rise [228].…”

Section: Numerical Multi-scale Modelingmentioning

confidence: 76%

Section: Numerical Multi-scale Modelingmentioning

confidence: 86%

Multi-Scale Surface Texturing in Tribology—Current Knowledge and Future Perspectives

2019

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“…On the other hand, medium diameter of the sleeve D 2 measures 55.099 mm, and average outer diameter of the rollers D 3 measures 4.03 mm. Taking these two diameters into equation (9), angular speed of the sleeve is calculated as ω f ≈ 0.463ω i .…”

Section: Results and Analysismentioning

confidence: 99%

“…ey found that relation between the speed ratio of the sleeve and the rotation speed of the bearing was notably nonlinear. Specifically, as the speed increased, the speed ratio would firstly rise rapidly and then fall gradually, indicating that there was an optimum speed range for the sleeve [9]. Li et al researched the lubricating property of the floating sleeve in high-speed and light-load condition and mainly discussed the influence of thermal elastic deformation on the lubricating property of the floating sleeve [10].…”

Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Research on the Floating‐Sleeve Bearing Applied in Roller‐Cone Bit

Yang

Cheng³

2019

Shock and Vibration

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In oil and gas drilling, the roller-cone bit and the hybrid bit configured with roller cones are two commonly used rock-breaking tools; however, service lives of the bits are limited by the sliding bearings therein. In order to improve the performance and reliability of the bearing in the roller cone, a novel bearing with a floating sleeve is researched in this paper. Firstly, motion characteristics of the bearing are researched, and motion relations between the elements in the bearing are analyzed, respectively. Then, on the basis of the motion relations, three motion statuses of the float sleeve are clarified, including the sleeve start to rotate, the sleeve rotates stably with the pushing force exerted by the rollers, and the sleeve rotates stably with the opposing force exerted by the rollers. At last, bearing performances in three different conditions are respectively tested in the experiment. The results, with the specific speed value being in the range of 0.375∼0.833 and the average value in 0.613∼0.618, show that the sleeves with 6∼12 rollers are able to start and rotate stably under 5 kN radial load, indicating that the sleeves can be started to rotate and work stably, whereas, for the sleeve with less than 4 rollers, the specific speed value varies in the large range of 0∼1.176, indicating that this sleeve cannot rotate stably in the bearing. This research revealed that the amount of rollers is an important factor that determines whether the sleeve is able to float stably in the bearing; therefore, roller quantity should be focused in the bearing design to optimize its performance.

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“…Surface pattern technology has also been used to enhance the tribological performance of friction pairs. Studies have shown that pre‐designed patterns on the surface of materials can store wear debris, form local hydrodynamic lubrication, change contact conditions, and act as reservoirs to retain lubricants . The influence of the surface pattern on reducing friction and wear relied significantly on the geometric parameters of the surface pattern, as well as the processing methods .…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Tribological Behavior of Stripe Patterned TiN Film Prepared with Filtered Cathodic Vacuum Arc Deposition (FCVAD)

Chen

2017

Adv Eng Mater

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This paper describes an experimental investigation into the influence of the stripe interspace and applied load on the tribological behavior of stripe patterned TiN films. The stripe patterned TiN films are deposited on an H13 steel surface by masked deposition with the filtered cathodic vacuum arc discharge (FCVAD) technique. The surface micro morphology, chemical composition, crystal structure, and mechanical properties of the films is characterized using 3D white light interferometry, scanning electron microscopy (SEM), X-ray diffractometry (XRD), and a nano-indentation tester, respectively. The tribological performance of patterned TiN is measured using a UMT-5 tribometer, and the friction and wear mechanisms are analyzed, compared with that of the full TiN film and H13 steel substrate. The results show that the stripe patterned TiN films has better tribological properties than the full TiN film. These results are attributed to the synergistic effect between the surface pattern and the TiN film. The stripe interspace and the applied load has a more significant effect on the wear rate of the stripe patterned TiN films than the coefficient of friction of their friction pairs. A further study, however, is needed to analyze the relationship between the applied load and the wear rates of the stripe patterned TiN films.

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Effects of surface texture on the lubrication performance of the floating ring bearing

Cited by 39 publications

References 20 publications

Multi-Scale Surface Texturing in Tribology—Current Knowledge and Future Perspectives

Multi-Scale Surface Texturing in Tribology—Current Knowledge and Future Perspectives

Theoretical and Experimental Research on the Floating‐Sleeve Bearing Applied in Roller‐Cone Bit

Microstructure and Tribological Behavior of Stripe Patterned TiN Film Prepared with Filtered Cathodic Vacuum Arc Deposition (FCVAD)

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