Publication
Analysis of the Nonlinear Orbital Motions of Immersed Rotors Using a Spectral/Galerkin Approach
| dc.contributor.author | Moreira, Miguel | |
| dc.contributor.author | Antunes, J. | |
| dc.contributor.author | Pina, H. | |
| dc.date.accessioned | 2013-07-24T15:08:47Z | |
| dc.date.available | 2013-07-24T15:08:47Z | |
| dc.date.issued | 2001 | |
| dc.description.abstract | Recently, we developed a symbolic-numerical formulation for the nonlinear planar motion of rotors under fluid confinement, based on a spectral/Galerkin approach, for gap geometries of about [equação] where H is the average annular gap and R is the rotor radius. Results showed a quite good agreement between the class of approximate models generated, the corresponding analytical exact planar model and experiments. Note that this methodology can be almost entirely automated on a symbolic computing environment. In the present paper this symbolic-numerical spectral/Galerkin procedure is extended in order to deal with nonlinear orbital motions - X (t) and Y (t) taking place in orthogonal directions. Numerical simulations performed over a centered rotor configuration maintained by non-isotropic supports [equação], which exhibit rich rotordynatnics, show a quite good agreement between this type of approximate models and the corresponding analytical exact (but quite involved) model developed in the past by the authors. | por |
| dc.identifier.uri | http://hdl.handle.net/10400.26/4592 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.subject | Rotor | por |
| dc.subject | Nonlinear orbital motions | por |
| dc.subject | Spectral/Galerkin procedure | por |
| dc.title | Analysis of the Nonlinear Orbital Motions of Immersed Rotors Using a Spectral/Galerkin Approach | por |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | Hong Kong, China | por |
| oaire.citation.endPage | 2042 | por |
| oaire.citation.startPage | 2035 | por |
| oaire.citation.title | 8th International Congress on Sound and Vibration (ICSV8) | por |
| rcaap.rights | openAccess | por |
| rcaap.type | conferenceObject | por |
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