Experimental investigations on churning power losses generated in a planetary gear set
| Autor: | Adrien Neurouth, Jean-Baptiste Boni, Christophe Changenet, Fabrice Ville |
|---|---|
| Přispěvatelé: | LabECAM, ECAM Lyon (ECAM Lyon), Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne] (LaMCoS), Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2017 |
| Předmět: |
0209 industrial biotechnology
Drag losses Computer science Mechanical Engineering Mechanical engineering 02 engineering and technology [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph] Churning Physics::Classical Physics Churning losses Industrial and Manufacturing Engineering [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] [SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of the structures [physics.class-ph] Power (physics) Set (abstract data type) [SPI]Engineering Sciences [physics] 020303 mechanical engineering & transports 020901 industrial engineering & automation 0203 mechanical engineering Planetary gear set Splash lubrication [SPI.MECA.THER]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Thermics [physics.class-ph] Astrophysics::Earth and Planetary Astrophysics Power losses |
| Zdroj: | Journal of Advanced Mechanical Design, Systems, and Manufacturing Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2017, 00 (6), pp.JAMDSM0079-JAMDSM0079. ⟨10.1299/jamdsm.2017jamdsm0079⟩ |
| ISSN: | 1881-3054 |
| DOI: | 10.1299/jamdsm.2017jamdsm0079 |
| Popis: | International audience; This study aims to experimentally investigate churning power losses generated by a planetary gear set which is splash lubricated. To this end, a specific test rig has been used to operate a planetary gear train under unloaded conditions in various configurations within a range of the planet-carrier rotational speed. Churning loss is isolated from the measured drag torque and the effects of several parameters (rotational speed, temperature, oil sump level, planet number…) on this source of dissipation are quantified. Beyond the influence of speed or oil level, it is concluded that the number of planets is of primary importance on churning power losses. Moreover, a first assumption is made concerning the oil sump behavior regarding the experiments: an oil ring is created explaining the evolution of the churning losses measured. In addition, this study compares the churning phenomenon occurring in cylindrical gear trains with the one observed during the experiments. It is shown that the approach used for conventional gear trains cannot be used for epicyclic ones: in planetary gear sets the centrifugal effects are predominant whereas the gravity forces have a larger influence on the free surface flows which occur in cylindrical gear sets. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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