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Engineering Review : International journal for publishing of original researches from the aspect of structural analysis, materials and new technologies in the field of mechanical engineering, shipbuilding, fundamental engineering sciences, computer sciences, electrical engin, Vol. 39 No. 2, 2019.

Original scientific paper

https://doi.org/10.30765/er.39.2.9

Evaluation of static and dynamic characteristics of hydrodynamic spiral-grooved journal bearings using the CFD

Janardhan Chander Matlapudi
Prudhvi Kanth Gunti
Datta Sriram Sigatapu
Niranjana Behera orcid id orcid.org/0000-0003-1721-0111 ; VIT University, Vellore

Full text: english PDF 516 Kb

page 197-204

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Abstract

inserting grooves of different cross-sections either on the journal or a bearing surface. This paper presents the prediction of load carrying capacity, stiffness, and damping coefficients of spiral-grooved bearing using the Computational Fluid dynamics (CFD) technique. The spiral grooves have been provided on the rotor surface. The error between the predicted values of these parameters using the CFD and the experimental value is low. A comparative analysis of performance has also been carried out between a grooved journal bearing and a plain journal bearing. The load carrying capacity of plain journal bearing is high when compared to spiral grooved journal bearing. At higher eccentrcity ratios, stability of a spiral-grooved journal bearing is comparatively better than a plain bearing. 

Keywords

spiral-groove; load carrying capacity; stiffness coefficient; damping coefficient; CFD

Hrčak ID:

218992

URI

https://hrcak.srce.hr/218992

Publication date:

15.4.2019.

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