A criterion for mode shape tracking: application to Campbell diagrams
| Autor: | Thouraya Baranger, Guillaume Mogenier, Guy Ferraris, Régis Dufour, Lionel Durantay |
|---|---|
| Přispěvatelé: | 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) |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
correlation criterion
Rotor (electric) Mechanical Engineering Mathematical analysis Mode (statistics) laminated rotor Aerospace Engineering mode tracking Finite element method law.invention Orthogonality Mechanics of Materials Control theory Normal mode law Pairing Automotive Engineering General Materials Science Circle criterion complex mode shape Rotation (mathematics) Rotor dynamics Mathematics |
| Zdroj: | Journal of Vibration and Control Journal of Vibration and Control, SAGE Publications, 2012, pp.1-12. ⟨10.1177/1077546312463714⟩ |
| ISSN: | 1077-5463 |
| DOI: | 10.1177/1077546312463714⟩ |
| Popis: | The correlation criterion proposed in this article and called nc2o (normalized cross complex orthogonality) is based on the bi-orthogonality properties between rotor mode shapes calculated at different speeds of rotation. This criterion is proved using an industrial laminated rotor composed of disks and two fluid film bearings, whose characteristics depend on the speed of rotation. The industrial finite element model shows that the nc2o criterion provides a more efficient mode pairing of rotor shapes than those obtained by using classical correlation criteria. Moreover this criterion makes it easier to plot Campbell diagrams for strongly speed-of-rotation-dependent structures. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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