Stability of water lubricated bearing using linear perturbation method under turbulent conditions

Mallya, Ravindra and Shenoy, Satish B and Pai, Rammohan S and Pai, Raghuvir B (2017) Stability of water lubricated bearing using linear perturbation method under turbulent conditions. Pertanika Journal of Tropical Agricultural Science, 25 (3). pp. 995-1008. ISSN 1511-3701

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Abstract

The stability of a bearing is influenced by the turbulent conditions encountered during its operation. In this paper, a linearised perturbation method is used to theoretically investigate the stability of a threeaxial groove water lubricated bearing. The stiffness and the damping coefficients are plotted for different eccentricity ratios of the bearing, for groove angles of 36o and 18o. The mass parameter and the whirl ratio, which are a measure of stability, are also plotted against the bearing number for different values of Reynolds number. The bearing shows very good stability at higher eccentricity ratios. The stiffness and damping coefficients as well as the mass parameter increase as the Reynolds number increases. The whirl ratios are unaffected by the change in Reynolds number.

Item Type: Article
Uncontrolled Keywords: Axial groove, hydrodynamic pressure, journal bearing, stability, turbulent regime, water lubrication
Subjects: Engineering > MIT Manipal > Aeronautical and Automobile
Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 23 Jun 2017 08:47
Last Modified: 23 Jun 2017 08:47
URI: http://eprints.manipal.edu/id/eprint/149135

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