Steady-state behaviour of nonlinear flexible rotor-bearing systems : part II : application : influence of cavitation modelling

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

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lJzis paper in vestigates the long term behaviour of a rotor-bearing system, consisting of a disk and flexible shaft supported all one side by all oil journal bearing and pinned on the other side. Periodic solutions of this system with and without mass unbalance are calculated. In rotordynamic analysis, it is often assumed thal the cavitation region in the bearings is only marginally influenced by the shaft velocity in the bearing, so the cavitation region is chosen to depend on the shaft eccentricity alone. In this paper the influence of this assumption on the responses of the rotor-bearing system is investigated for the short bearing theory. The results show that the type of cavitation model has a large influence on the response of the rotor-bearing model and that the assumption mentioned above is not valid for the system investigated.
Originele taal-2Engels
Pagina's (van-tot)146-155
TijdschriftMachine Vibration
Volume3
StatusGepubliceerd - 1995

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