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http://dx.doi.org/10.3795/KSME-A.2013.37.4.437

Lubrication Characteristics of Micro-Textured Slider Bearing: Effect of Dimple Density  

Park, Tae Jo (School of Mechanical Engineering, ERI, Gyoungsang Nat'l Univ.)
Lee, Joon Oh (Graduate School of Mechanical and Aerospace Engineering, Gyoungsang Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.37, no.4, 2013 , pp. 437-442 More about this Journal
Abstract
In recent times, surface texturing methods have been widely applied to reduce friction and improve the reliability of machine components such as parallel thrust bearings, mechanical face seals, and piston rings. In this study, a numerical analysis is carried out to investigate the effect of uniformly spaced hemispherical dimples on the lubrication characteristics of a slider bearing using a commercial computational fluid dynamics (CFD) code, FLUENT. The pressure distributions, load capacity, leakage flowrate, and friction force are strongly affected by the dimple diameter and the number of dimples. In particular, the load capacity and friction force decrease linearly with the dimple density whereas the leakage increases. These results can be used for designing the optimum dimple characteristics in order to improve the lubrication performance of slider bearings, for which further studies are required.
Keywords
Slider Bearing; Surface Texturing; micro-Dimple; Friction Reduction; CFD;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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