Stability of four-axial and six-axial grooved water-lubricated journal bearings under dynamic load

Pai, Rammohan S and Pai, Raghuvir B (2008) Stability of four-axial and six-axial grooved water-lubricated journal bearings under dynamic load. Proceedings of International Mechanical Engineering, 222 (J4). pp. 683-691.

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Abstract

Thenon-linear transient analysis of water-lubricated journal bearings having four-axial and six-axial grooves is studied theoretically. The time-dependent form of the generalized Reynolds equation has been written as the governing equation in non-dimensional form. The Reynolds equation is solved by a finite-difference technique with a successive over-relaxation scheme, satisfying the Jakobsson–Floberg–Olsson boundary conditions. A non-linear timetransient analysis is carried out and the stability of journal is studied.The equations of motion are solved by the fourth-order Runge–Kutta method to obtain the eccentricity ratio, attitude angle, and their derivatives for the next time step. This study is performedfor unidirectional constant load, unidirectional periodic load, and variable rotating load. The journal locus is plotted from the values of eccentricity ratio and attitude angle, and it helps in predicting the status of the system.

Item Type: Article
Uncontrolled Keywords: four-axial grooves, six-axial grooves, non-linear, water-lubricated journal bearing
Subjects: Engineering > MIT Manipal > Aeronautical and Automobile
Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 25 May 2016 11:59
Last Modified: 25 May 2016 11:59
URI: http://eprints.manipal.edu/id/eprint/146140

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