Influence of Operating Condition and Geometry on the Oil Film Thickness in Aero-Engine Bearing Chambers
| Autor: | P. Gorse, Klaus Dullenkopf, S. Busam |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Angular momentum
Engineering Gravity (chemistry) Bearing (mechanical) business.industry Mechanical Engineering Capacitive sensing Flow (psychology) Shear force Energy Engineering and Power Technology Aerospace Engineering Mechanical engineering Structural engineering Seal (mechanical) law.invention Jet engine Fuel Technology Nuclear Energy and Engineering law Oil droplet Lubrication business |
| Zdroj: | Volume 4: Turbo Expo 2004. |
| DOI: | 10.1115/gt2004-53708 |
| Popis: | Increasing the efficiency of modern jet engines do not only imply to the mainstream but also to the secondary air and oil system. Within the oil system the bearing chamber is one of the most challenging component. Oil films on the chamber walls are generated from oil droplets, ligaments, or film fragments, which emerge from bearings, seal plates and shafts, and enter the bearing chamber with an angular momentum. Furthermore, shear forces at its surface, gravity forces, and the design of scavenge and vent ports strongly impact the behavior of the liquid film. The present paper focuses on the experimental determination of the film thickness is various geometries of bearing chambers for a wide range of engine relevant conditions. Therefore, each configuration was equipped with five capacitive probes positioned at different circumferential locations. Two analytical approaches are used for a comprehensive discussion of the complex film flow.Copyright © 2004 by ASME |
| Databáze: | OpenAIRE |
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