Steady-state behaviour of flexible rotordynamic systems with oil journal bearings

E.L.B. Vorst, van de, R.H.B. Fey, A. Kraker, de, D.H. Campen, van

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Abstract

This paper deals with the long term behaviour of flexible rotordynamic systems, which are supported by nonlinear bearings. A system consisting of a rotor and shaft which is supported by one oil jounal bearing is investigated numerically. The shaft is modelled using finite elements and reduced using a Component Mode Synthesis method. Branches of periodic solutions are calculated for three models of the system wich an unbalance ate the rotor. Also self-excited oscillations are calculated for the three models if no mass unbalance is present. The results show that a mass unbalance can stabilize rotordynamic systems and that the first eigenfrequency of the systems has great influence on the self-excited oscillations.
Original languageEnglish
Title of host publicationNonlinear and stochastic dynamics : presented at 1994 International Mechanical Engineering Congress and Exhibition, Chicago, Illinois, November 6-11, 1994
Place of PublicationNew York
PublisherAmerican Society of Mechanical Engineers
Pages107-114
ISBN (Print)0791814416
Publication statusPublished - 1994

Publication series

NameApplied Mechanics. AMD
Volume192

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    Vorst, van de, E. L. B., Fey, R. H. B., Kraker, de, A., & Campen, van, D. H. (1994). Steady-state behaviour of flexible rotordynamic systems with oil journal bearings. In Nonlinear and stochastic dynamics : presented at 1994 International Mechanical Engineering Congress and Exhibition, Chicago, Illinois, November 6-11, 1994 (pp. 107-114). (Applied Mechanics. AMD; Vol. 192). American Society of Mechanical Engineers.