Search results for " rotor-dynamics"

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Stability analysis of rotor whirl under nonlinear internal friction by a general averaging approach

2016

The two main sources of internal friction in a rotor-shaft system are the shaft structural hysteresis and the possible shrink-fit release of the assembly. The internal friction tends to destabilize the over-critical rotor running, but a remedy against this effect may be provided by a proper combination of some external damping in the supports and an anisotropic arrangement of the support stiffness, or at most by the support damping alone, depending on the system geometry. The present analysis reported here considers a general asymmetric rotor-shaft system, where the rotor is perfectly rigid and is constrained by viscous–flexible supports having different stiffnesses on two orthogonal plane…

Engineeringbusiness.industryRotor (electric)Mechanical EngineeringAerospace Engineering02 engineering and technologySettore ING-IND/13 - Meccanica Applicata Alle Macchine01 natural sciencesStability (probability)Internal frictionAveraging approach nonlinear rotor-shaft hysteresis overcritical whirl rotor-dynamicslaw.inventionNonlinear systemHysteresis020303 mechanical engineering & transports0203 mechanical engineeringMechanics of MaterialsControl theorylaw0103 physical sciencesAutomotive EngineeringGeneral Materials Sciencebusiness010301 acousticsJournal of Vibration and Control
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