Nonlinear transient analysis of water lubricated bearing in the turbulent regime

Ravindra Mallya; Raghuvir Pai; Satish Shenoy Baloor

doi:10.1038/s41598-024-78242-4

Scientific Reports (Nov 2024)

Nonlinear transient analysis of water lubricated bearing in the turbulent regime

Ravindra Mallya,
Raghuvir Pai,
Satish Shenoy Baloor

Affiliations

Ravindra Mallya: Department of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education
Raghuvir Pai: Department of Mechanical and Industrial Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education
Satish Shenoy Baloor: Department of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education

DOI: https://doi.org/10.1038/s41598-024-78242-4
Journal volume & issue: Vol. 14, no. 1
pp. 1 – 20

Abstract

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Abstract Influence of turbulence on the stability characteristics of a water lubricated journal bearing is analyzed. Locus of the journal centre is plotted using the non – linear transient analysis method for different flow regimes of the bearing subjected to three different types of loading. The bearing groove angles of 18o and 36o is considered for the analysis. Turbulent coefficients are incorporated in the modified form of Reynolds equation which is solved using the 4th order Runge-Kutta method. The path traversed by journal centre is generated for different loading conditions and the stability of the bearing is examined. For periodic and fluctuating rotating loads, the journal centre traversed shorter path and reached stable position when the flow regime changed from laminar to turbulent.

Published in Scientific Reports

ISSN: 2045-2322 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Medicine; Science
Website: https://www.nature.com/srep/

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Abstract

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