Dynamic Model for Axial Motion of Horizontal Pelton Turbine and Validation in Actual Failure Case
Pelton turbines are important machines for power generation from a renewable energy source such as water. For power rates below 20 MW, the rotor of Pelton turbines is usually in horizontal position. Considering ideal mounting and operating conditions, there are no axial forces acting on the rotor. I...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/8811961 |
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| author | C. G. Rodriguez D. Zambrano S. Reyes J. Tapia M. Egusquiza E. Egusquiza |
| author_facet | C. G. Rodriguez D. Zambrano S. Reyes J. Tapia M. Egusquiza E. Egusquiza |
| author_sort | C. G. Rodriguez |
| collection | DOAJ |
| description | Pelton turbines are important machines for power generation from a renewable energy source such as water. For power rates below 20 MW, the rotor of Pelton turbines is usually in horizontal position. Considering ideal mounting and operating conditions, there are no axial forces acting on the rotor. In practice, there is an hydraulic force due to the difference between nozzle centerline and bucket centerline, and there is a magnetic force due to the difference between axial position of stator and rotor magnetic field centers. These forces are supported by bearings. In this article, a nonlinear dynamic model considering these axial forces and bearings behavior is presented and solved for two different actual Pelton turbines. The nonlinear dynamic model allows determining and evaluating the source of axial motion and therefore provides valuable information in order to reduce it when the axial displacement is high enough to produce damage. |
| format | Article |
| id | doaj-art-c4f48d12a9484d0e85cbcb4b1bf48dc4 |
| institution | DOAJ |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-c4f48d12a9484d0e85cbcb4b1bf48dc42025-08-20T03:23:04ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/88119618811961Dynamic Model for Axial Motion of Horizontal Pelton Turbine and Validation in Actual Failure CaseC. G. Rodriguez0D. Zambrano1S. Reyes2J. Tapia3M. Egusquiza4E. Egusquiza5Department of Mechanical Engineering, University of Concepcion, Edmundo Larenas 219, 4070409 Concepcion, ChileDepartment of Mechanical Engineering, University of Concepcion, Edmundo Larenas 219, 4070409 Concepcion, ChileDepartment of Mechanical Engineering, University of Concepcion, Edmundo Larenas 219, 4070409 Concepcion, ChileDepartment of Electrical Engineering, University of Concepcion, Edmundo Larenas 219, 4070409 Concepcion, ChileCentre of Industrial Diagnostics and Fluid Dynamics (CDIF), Technical University of Catalonia (UPC), Av. Diagonal 647, 08028 Barcelona, SpainCentre of Industrial Diagnostics and Fluid Dynamics (CDIF), Technical University of Catalonia (UPC), Av. Diagonal 647, 08028 Barcelona, SpainPelton turbines are important machines for power generation from a renewable energy source such as water. For power rates below 20 MW, the rotor of Pelton turbines is usually in horizontal position. Considering ideal mounting and operating conditions, there are no axial forces acting on the rotor. In practice, there is an hydraulic force due to the difference between nozzle centerline and bucket centerline, and there is a magnetic force due to the difference between axial position of stator and rotor magnetic field centers. These forces are supported by bearings. In this article, a nonlinear dynamic model considering these axial forces and bearings behavior is presented and solved for two different actual Pelton turbines. The nonlinear dynamic model allows determining and evaluating the source of axial motion and therefore provides valuable information in order to reduce it when the axial displacement is high enough to produce damage.http://dx.doi.org/10.1155/2020/8811961 |
| spellingShingle | C. G. Rodriguez D. Zambrano S. Reyes J. Tapia M. Egusquiza E. Egusquiza Dynamic Model for Axial Motion of Horizontal Pelton Turbine and Validation in Actual Failure Case Shock and Vibration |
| title | Dynamic Model for Axial Motion of Horizontal Pelton Turbine and Validation in Actual Failure Case |
| title_full | Dynamic Model for Axial Motion of Horizontal Pelton Turbine and Validation in Actual Failure Case |
| title_fullStr | Dynamic Model for Axial Motion of Horizontal Pelton Turbine and Validation in Actual Failure Case |
| title_full_unstemmed | Dynamic Model for Axial Motion of Horizontal Pelton Turbine and Validation in Actual Failure Case |
| title_short | Dynamic Model for Axial Motion of Horizontal Pelton Turbine and Validation in Actual Failure Case |
| title_sort | dynamic model for axial motion of horizontal pelton turbine and validation in actual failure case |
| url | http://dx.doi.org/10.1155/2020/8811961 |
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