Aerodynamic Analysis of Pivotless Tilting Pad Gas Journal Bearing

Patra, Pravajyoti (2015) Aerodynamic Analysis of Pivotless Tilting Pad Gas Journal Bearing. MTech thesis.



Gas lubrication has found a place of particular importance where it is necessary to keep the environment free from contamination by conventional lubricants. Pivot less tilting pad gas bearing mainly used for high speed rotors where whirling is the main issue. Each pad of the journal bearing forms a subsystem with its own local parameters to sustain the load. Basically three pads are used and each pad acts separately on the journal for better load carrying capacity. So during frequent start and stop application pads are coming in contacts protecting the bearing house. This paper contains aeronamic analysis of pivot less tilting pad gas journal bearing. Reynolds’equation is solved by finite difference method and Newton-Raphson method. Static characteristics like pressure profile, load carrying capacity, frictional force,coefficient of friction are calculated, and method to find dynamic parameters of stiffness and damping of a pivotless tilting pad gas journal bearing is shown. The author believes that such detail analysis on tilting pad gas journal bearing at different condition will help researchers around the world.  

Item Type:Thesis (MTech)
Uncontrolled Keywords:Pivot less tilting pad gas bearing, Reynolds’equation, Newton-Raphson method, Load carrying capacity, pressure profile, stiffness and damping characteristics
Subjects:Engineering and Technology > Mechanical Engineering > Machine Design
Divisions: Engineering and Technology > Department of Mechanical Engineering
ID Code:7276
Deposited By:Mr. Sanat Kumar Behera
Deposited On:21 Apr 2016 16:42
Last Modified:21 Apr 2016 16:42
Supervisor(s):Behera, S K

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