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- Title
Experimental Characterization of Large Turbomachinery Tilting Pad Journal Bearings.
- Authors
Ciulli, Enrico; Ferraro, Riccardo; Forte, Paola; Innocenti, Alice; Nuti, Matteo
- Abstract
The paper deals with the experimental characterization of different 280 mm diameter tilting pad journal bearings for turbomachines using a dedicated test rig. The test articles were a 5-pad Direct Lube Rocker Pivot bearing, a 5-pad Flooded Rocker Pivot bearing, and a 4-pad Flooded Ball and Socket Pivot bearing. The three bearings were tested in their specific design range of operating conditions. Their static and dynamic behavior was investigated as a function of different operating parameters. In particular, the assumed journal center eccentricity and pads temperature were measured, and the power loss determined as a function of angular speed for different static loads. Dynamic stiffness and damping coefficients were determined as a function of excitation frequency for different speeds and loads. The experimental results were compared showing the influence of the operating parameters, configuration, and oil supply.
- Subjects
JOURNAL bearings; PIVOT bearings; DYNAMIC stiffness; DEAD loads (Mechanics); TURBOMACHINES
- Publication
Machines, 2021, Vol 9, Issue 11, p273
- ISSN
2075-1702
- Publication type
Article
- DOI
10.3390/machines9110273