izpis_h1_title_alt

Improved 2D model of a ball bearing for the simulation of vibrations due to faults during run-up
Tadina, Matej (Avtor), Boltežar, Miha (Avtor)

URLURL - Predstavitvena datoteka, za dostop obiščite http://iopscience.iop.org/1742-6596/305/1/012033 Novo okno

Izvleček
This paper present an improved 2D bearing model for investigation of the vibrations of a ball-bearing during run-up. The presented numerical model assumes deformable outer race, which is modelled with finite elements, centrifugal load effects and radial clearance. The contact force for the ballsis described by a nonlinear Hertzian contact deformation. Various surface defects due to local deformations are introduced into the developed model. The detailed geometry of the local defects is modelled as an impressed ellipsoid on the races and as a flattened sphere for the rolling balls. The obtained equations of motion were solved numerically with a modified Newmark time-integration method for the increasing rotational frequency of the shaft. The simulated vibrational response of the bearing with different local faults was used to test the suitability of the continuous wavelet transformation for the bearing fault identification and classification.

Jezik:Angleški jezik
Ključne besede:vibracije, nihanja, numerični modeli, simulacije, mehanska nihanja
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.08 - Objavljeni znanstveni prispevek na konferenci
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2011
Št. strani:Str. 012033-1-012033-11
UDK:531/533
ISSN pri članku:1742-6588
DOI:10.1088/1742-6596/305/1/012033 Povezava se odpre v novem oknu
COBISS.SI-ID:11942683 Povezava se odpre v novem oknu
Število ogledov:425
Število prenosov:139
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Gradivo je del zbornika

Naslov:9th International Conference on Damage Assessment of Structures (DAMAS 2011), 11-13 July 2011, St Anne's College, University of Oxford
COBISS.SI-ID:11942427 Novo okno

Gradivo je del revije

Naslov:Journal of physics
Založnik:Institute of Physics Publishing
ISSN:1742-6588
COBISS.SI-ID:19812391 Novo okno

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