Publication
Finite length bearings and squeeze-film dampers: a two-dimensional dynamical solution
| dc.contributor.author | Antunes, J. | |
| dc.contributor.author | Moreira, Miguel | |
| dc.contributor.author | Piteau, P. | |
| dc.date.accessioned | 2013-07-24T10:51:40Z | |
| dc.date.available | 2013-07-24T10:51:40Z | |
| dc.date.issued | 2003 | |
| dc.description.abstract | In this paper we develop a non-linear dynamical solution for finite length bearings and squeeze-film dampers based on a Spectral-Galerkin method. En this approach the gap-averaged pressure is approximated, in the lubrication Reynolds equation, by a truncated double Fourier series. The Galerkin method, applied over the residuals so obtained, generate a set of simultaneous algebraic equations for the time-dependent coefficients of the double Fourier series for the pressure. In order to asse:t the validity of our 2D—Spectral-Galerkin solution we present some preliminary comparative numerical simulations, which display satisfactory results up to eccentricities of about 0.9 of the reduced fluid gap 1-1/R. The so-called long and short-bearing dynamical solutions of the Reynolds equation, reformulated in Cartesian coordinates, are also presented and compared with the corresponding classic solutions found on literature. | por |
| dc.identifier.uri | http://hdl.handle.net/10400.26/4581 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.subject | Finite length bearings | por |
| dc.subject | Reynolds equation | por |
| dc.subject | Spectral/Galerkin method | por |
| dc.title | Finite length bearings and squeeze-film dampers: a two-dimensional dynamical solution | por |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | Greece | por |
| oaire.citation.endPage | 434 | por |
| oaire.citation.startPage | 425 | por |
| oaire.citation.title | CMEM 2003 - Eleventh International Conference on Computational Methods and Experimental Measurements | por |
| rcaap.rights | openAccess | por |
| rcaap.type | conferenceObject | por |
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