Stability and vibration analysis of a complex flexible rotor bearing system

Autor: Jean-Jacques Sinou, Cristiano Viana Serra Villa, Fabrice Thouverez
Přispěvatelé: Laboratoire de Tribologie et Dynamique des Systèmes (LTDS), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Ecole Nationale d'Ingénieurs de Saint Etienne-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2008
Předmět:
Computer science
Harmonic balance method
[MATH.MATH-DS]Mathematics [math]/Dynamical Systems [math.DS]
Perturbation (astronomy)
02 engineering and technology
Kinematics
01 natural sciences
law.invention
Non linear dynamic
Harmonic balance
[PHYS.MECA.STRU]Physics [physics]/Mechanics [physics]/Structural mechanics [physics.class-ph]
0203 mechanical engineering
Control theory
law
Hertz
Hertz contact
0103 physical sciences
Bearing clearance
Time domain
010301 acoustics
[PHYS.MECA.VIBR]Physics [physics]/Mechanics [physics]/Vibrations [physics.class-ph]
Numerical Analysis
Bearing (mechanical)
05.45.−a
45.10.−b
46.40.Ff
Applied Mathematics
Rolling bearings
Non-linear dynamic
[SPI.MECA.VIBR]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph]
[SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph]
Vibration
020303 mechanical engineering & transports
[SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Structural mechanics [physics.class-ph]
Modeling and Simulation
Stability
Zdroj: Communications in Nonlinear Science and Numerical Simulation
Communications in Nonlinear Science and Numerical Simulation, Elsevier, 2008, 13 (4), pp.804-821. ⟨10.1016/j.cnsns.2006.06.012⟩
ISSN: 1007-5704
DOI: 10.1016/j.cnsns.2006.06.012⟩
Popis: International audience; This paper presents the non-linear dynamic analysis of a flexible rotor having unbalanced and supported by ball bearings. The rolling element bearings are modeled as two degree of freedom elements where the kinematics of the rolling elements are taken into account, as well as the internal clearance and the Hertz contact non-linearity. In order to calculate the periodic response of this non-linear system, the harmonic balance method is used. This method is implemented with an exact condensation strategy to reduce the computational time. Moreover, the stability of the non-linear system is analyzed in the frequency-domain by a method based on a perturbation applied to the known harmonic solution in the time domain.
Databáze: OpenAIRE
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