1993 · 14 citations · 0 references
EngineeringMechatronics EngineeringDynamical SystemsStructural DynamicsVibrationChaos TheoryMachine VibrationNonlinear VibrationRotor DynamicsRotordynamicsVibration AnalysisBearing DynamicsBearing VibrationChaotic DynamicsLateral Vibration Of Rotor SystemsNonlinear Rotor DynamicsNumerical SimulationRubbing DynamicsVibration Of Rotating Systems
Abstract This paper presents results of numerical simulation of the dynamic behavior of a one-lateral-mode unbalanced and radially side-loaded rotor with either loose pedestal (looseness in a stationary joint), or with one oversize bearing (looseness between a rotating and stationary joint), or with occasional rotor/stator rubbing. The nonlinearities of these systems (variable stiffness, impacting, and friction) are associated with intermittent contacts with the stationary element. The results, based on a local impact model, developed in the author’s previous publications, exhibit regular periodic, as well as chaotic vibration patterns of the rotor.