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Theoretical study to investigate the influence of preload factors and surface textures on the performance characteristics of two-lobe journal bearings

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Title Theoretical study to investigate the influence of preload factors and surface textures on the performance characteristics of two-lobe journal bearings
 
Creator Singh, Niranjan
Awasthi, R.K
 
Subject Surface texture
Two-lobe journal bearing
Preload factor
Load carrying capacity
Dimple depth
Lubricant end flow
Critical mass
Whirl frequency ratio
 
Description 1-20
There are number of factors which influence the performance characteristics of two-lobe journal bearings viz: number of lobes, type of lubricants, preload factor etc. and performance characteristics can be enhanced by creating textures on the bearing surface. The current paper presents a theoretical study considering the combined effect of dimple depth and preload factors on the performance characteristics of two-lobe journal bearing. For this purpose, Reynolds equation governing the flow of Newtonian lubricant is solved via Galerkin’s FEM approach to investigate the influence of dimple depth and preload factor on the performance parameters of partially textured two-lobe journal bearing. Firstly, the pressure of fluid-film for plain/partially textured two-lobe journal bearing is evaluated at different nodes. Then, the performance characteristics of partially textured bearing are calculated and compared with plain two-lobe journal bearing. The computed results demonstrate that the static and dynamic performance characteristics of partially textured two-lobe journal bearing can be improved by increasing the preload factor. Further, the results reveal that the optimum static and dynamic performance parameters can be obtained when the dimple depth is 0.16.
 
Date 2022-04-15T09:40:29Z
2022-04-15T09:40:29Z
2022
 
Type Article
 
Identifier 2582-6492 (Online); 0036-8512 (Print)
http://nopr.niscair.res.in/handle/123456789/59529
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source SR Vol.59(04) [April 2022]