An effect on the pressure and fluid film thickness of the worn journal bearing system using JFO cavity model

Harpuneet Singh; R. K. Awasthi; Jasjeevan singh

doi:https://doi.org/10.51976/ijari.641819

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An effect on the pressure and fluid film thickness of the worn journal bearing system using JFO cavity model

Harpuneet Singh, R. K. Awasthi, Jasjeevan singh

Vol 6 , Issue 4 , October - December 2018 | Pages: 154-158 | Research Paper

https://doi.org/10.51976/ijari.641819

Received: August 18, 2018 | Revised: August 28, 2018 | Accepted: September 02, 2018 | Published Online: September 15, 2018

Author Details ( * ) denotes Corresponding author

1. * Harpuneet Singh, Department of Mechanical Engineering, Khalsa College of Engineering and Technology, Amritsar, Punjab, India (harpuneetsingh32315@gmail.com)

2. R. K. Awasthi, Department of Mechanical Engineering, Khalsa College of Engineering and Technology, Amritsar, Punjab, India

3. Jasjeevan singh, Department of Mechanical Engineering, Khalsa College of Engineering and Technology, Amritsar, Punjab, India

The present study is basically concerned with the wear which occurs due to frequent start / stop operation as well as due to running-in operation as these operations are very usual and the wear from these operations is commonly observed in fluid-film journal bearing system. In order to model the worn journal bearing geometry, the current study considers the geometry of the worn smooth surface based on the Dufrane model, which assumes that the footprint created by the journal on the bearing is symmetrical at the bottom of the bearing and the wear pattern is uniform along the axial length of the bearing. In order to compute the fluid film pressure for fluid film journal bearing system the two dimensional Reynolds is solved numerically using FDM. The code developed is validated for its accuracy by comparing the results with already published results. Effect of wear on performance parameters (maximum pressure and minimum fluid thickness) of journal bearing are calculated.

Keywords

Hydrodynamic Journal Bearings; Axial Pressure; Fluid Film Thickness; Eccennricity Ratio

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