Structural dynamics of electric machine stators :Modelling guidelines and identification of three-dimensional equivalent material properties for multi-layered orthotropic laminates
| Autor: | Jean-Baptiste Dupont, Pierre Millithaler, Noureddine Bouhaddi, Morvan Ouisse, Emeline Sadoulet-Reboul |
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| Přispěvatelé: | Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), Vibratec (Vibratec) |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Electric motor
business.product_category Acoustics and Ultrasonics Computer science Stator superelements Mechanical engineering electric machine stator Orthotropic material law.invention magnetic core Matrix (mathematics) [SPI]Engineering Sciences [physics] law Electric machine homogenisation business.industry Mechanical Engineering laminated structures Structural engineering [PHYS.MECA]Physics [physics]/Mechanics [physics] Elasticity (physics) Condensed Matter Physics effective medium Magnetic core Mechanics of Materials business Material properties |
| Zdroj: | Journal of Sound and Vibration Journal of Sound and Vibration, Elsevier, 2015, 348, pp.185-205 Journal of Sound and Vibration, Elsevier, 2015, 348, pp.185-205. ⟨10.1016/j.jsv.2015.03.010⟩ |
| ISSN: | 0022-460X 1095-8568 |
| DOI: | 10.1016/j.jsv.2015.03.010⟩ |
| Popis: | International audience; Simulating the dynamic behaviour of heterogeneous finite-element structures such as electric motors often requires to homogenise the models in the first place. Current homogenisation methods do not always imply computing an equivalent homogeneous material's elasticity matrix and are often restrained to specific uses. In this document, a novel approach of equivalent material identification is developed for multi-layered orthotropic structures. A finite-element model of a 3D stratified structure is created, as well as its equivalent homogeneous medium. The dynamic behaviour of the homogeneous structure with the equivalent material identified by the new method is compared at low frequencies to the reference stack and to equivalent materials created using other existing homogenisation techniques. It is shown that this approach is more accurate than existing reference homogenisation methods. Applied to the magnetic core's finite-element model of a real laminated electric machine stator, the method enables simulating the experimental behaviour with good accuracy, without need of time-consuming model updating procedures. |
| Databáze: | OpenAIRE |
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