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- W4293051415 endingPage "107883" @default.
- W4293051415 startingPage "107883" @default.
- W4293051415 abstract "Aerodynamic bearings are being employed in several high-speed micro-turbomachines, where frequent acceleration/deceleration of the rotor is common. Keeping the whirl amplitude of the rotor within acceptable limits is a must for the safety of the rotor-bearing system. This paper presents, for the first time, the dynamics of an accelerating rotor supported on Aerodynamic Journal Bearings. Due to unbalance, the rotordynamics between the spin and translational coordinates get nonlinearly coupled. The paper utilizes these equations to plan suitable acceleration-schedules to limit the whirl amplitude and frequency as low as possible. It is found that the acceleration should be scheduled in at least three regimes: the first with the maximum torque, the second with the minimum torque, and the last with an intermediate torque." @default.
- W4293051415 created "2022-08-25" @default.
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- W4293051415 date "2022-12-01" @default.
- W4293051415 modified "2023-10-16" @default.
- W4293051415 title "Rotordynamics of an accelerating rotor supported on aerodynamic journal bearings" @default.
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- W4293051415 doi "https://doi.org/10.1016/j.triboint.2022.107883" @default.
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