The nonlinear and ball pass effects of a ball bearing on rotor vibration View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1998-05

AUTHORS

D. C. Han, S. H. Choi, Y. H. Lee, K. H. Kim

ABSTRACT

A ball bearing is generally assumed as a linear spring in rotor dynamic analysis. In real case, the force equilibrium of the bearing is changed as the relative position, of each ball with respect to the direction of radial force. So, the stiffness of the bearing is also changed and is a function of time and position. In this study, the nonlinear characteristics of a ball bearing are considered in analyzing the vibration response of a rotating shaft due to an unbalance force. A finite element method is used to analyze the vibration characteristics of a rotor-bearing system and a direct numerical integration is performed to calculate the transient response of the rotor system. The responses are converted to the frequency domain and the effects of the parametric excitation due to a ball bearing are examined. The test rig for the investigation of the effect of a ball bearing on the rotor vibration is set up and the results are compared with those of numerical calculation. The calculation results show that the amplitudes of the nonlinear model are larger than those of the linear one. The frequencies of the calculations can be matched to the measured frequencies. More... »

PAGES

396-404

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf02946354

DOI

http://dx.doi.org/10.1007/bf02946354

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1048929441


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