Numerical and Experimental Evaluation of Hydrodynamic Bearings Applied to a Jeffcott Test Bench

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorAeronaut Inst Technol-
Autor(es): dc.contributorUniv Santiago Chile-
Autor(es): dc.creatorMedeiros, Everton C. [UNESP]-
Autor(es): dc.creatorNabarrete, Airton-
Autor(es): dc.creatorCruchaga, Marcela A.-
Autor(es): dc.creatorMendonca, Willy R. P. [UNESP]-
Autor(es): dc.creatorMathias, Mauro H. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:55:54Z-
Data de disponibilização: dc.date.available2022-02-22T00:55:54Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.20855/ijav.2020.25.11732-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/209277-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/209277-
Descrição: dc.descriptionMerging analytical and numerical models with experimental results improve the behaviour predictions of mechanical elements applied to rotor machinery, such as the bearings. This work aims to present the design of a hydrodynamic bearing prototype, a comparison and validation between the numerical and experimental results of critical speeds, and the differences of behaviour when the bush geometries and lubrication are changed. The bush geometries and the fluid film properties are analysed by measuring the dynamic behaviour of a rotor supported by these bearings. The experimental evaluation is based on measuring the Jeffcott test bench supported in a pair of bearings, showing the anisotropic behaviour caused by the stiffness difference in horizontal and vertical directions. It also presents an optimization of bushings for isotropic conditions when they were changed for different geometries (elliptical, offset halves) and different materials with boundary lubrication. This detailed study shows how the dynamic behaviour of rotating machinery can be predicted using numerical models and its validation by a test rig. Results also show how the vibration occurs if the bushes geometries are modified or its lubrication condition is changed.-
Descrição: dc.descriptionSao Paulo State Univ, Campus Guaratingueta, Guaratingueta, SP, Brazil-
Descrição: dc.descriptionAeronaut Inst Technol, P Marechal Eduardo Gomes 50, Sao Jose Dos Campos, SP, Brazil-
Descrição: dc.descriptionUniv Santiago Chile, Estn Cent, P Av Bdo OHiggins 3363, Santiago, Chile-
Descrição: dc.descriptionSao Paulo State Univ, Campus Guaratingueta, Guaratingueta, SP, Brazil-
Formato: dc.format64-69-
Idioma: dc.languageen-
Publicador: dc.publisherInt Inst Acoustics & Vibration-
Relação: dc.relationInternational Journal Of Acoustics And Vibration-
???dc.source???: dc.sourceWeb of Science-
Título: dc.titleNumerical and Experimental Evaluation of Hydrodynamic Bearings Applied to a Jeffcott Test Bench-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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