CRIS Current Research Information System
IRIS è la soluzione IT che facilita la raccolta e la gestione dei dati relativi alle attività e ai prodotti della ricerca. Fornisce a ricercatori, amministratori e valutatori gli strumenti per monitorare i risultati della ricerca, aumentarne la visibilità e allocare in modo efficace le risorse disponibili.
EnglishTurbogenerator coil retaining rings (CRRs) are shrunk fitted onto the rotor over the coils, in order to restrain them against the centrifugal force. They are typically subjected to low cycle fatigue (LCF), with a cycle being completed at every machine switch-on and switch-off. The object of this paper is to show a computationally efficient methodology, based on the AMV, to determine the failure probability of a CRR. Its estimation is based on the experimental evaluation of material static, cyclic and fatigue properties and on the knowledge of the entity of cyclic loads. The determined value, in the order of 10-11 at the last stage of the machine life, is compatible with reference values for structures under fatigue in the aeronautical field.
| Titolo: | Combining experimental data and numerical processing for failure probability evaluation of Coil Retaining Rings |
| Autore/i: | OLMI, GIORGIO; FREDDI, ALESSANDRO |
| Autore/i Unibo: | |
| Anno: | 2012 |
| Titolo del libro: | Proceedings of 11th Youth Symposium on Experimental Solid Mechanics |
| Pagina iniziale: | 122 |
| Pagina finale: | 127 |
| Abstract: | Turbogenerator coil retaining rings (CRRs) are shrunk fitted onto the rotor over the coils, in order to restrain them against the centrifugal force. They are typically subjected to low cycle fatigue (LCF), with a cycle being completed at every machine switch-on and switch-off. The object of this paper is to show a computationally efficient methodology, based on the AMV, to determine the failure probability of a CRR. Its estimation is based on the experimental evaluation of material static, cyclic and fatigue properties and on the knowledge of the entity of cyclic loads. The determined value, in the order of 10-11 at the last stage of the machine life, is compatible with reference values for structures under fatigue in the aeronautical field. |
| Data prodotto definitivo in UGOV: | 22-giu-2013 |
| Appare nelle tipologie: | 4.01 Contributo in Atti di convegno |
File in questo prodotto:
Copyright © 2021