This paper presents a novel modeling method and a control system design procedure for a flexible rotor with many elastic modes using active magnetic bearings. The purpose of our research is to let the rotor rotate passing over the 1st and the 2nd critical speeds caused by flexible modes. To achieve this, it is necessary to control motion and vibration of the flexible rotor simultaneously. The new modeling method named as Extended Reduced Order Physical Model is presented to express its motion and vibration uniformly. By using transfer function of flexible rotor-Active Magnetic Bearings system, we designed a local jerk feedback control system and stability analysis by using root locus is carried out. Levitation experimentation is performed and stable levitation and significant vibration suppression effect is achieved.
- Dynamic Systems and Control Division
Levitation and Vibration Supression of an Elastic Rotor by Using Active Magnetic Bearings
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Funakoshi, D, Okada, S, Watanabe, T, & Seto, K. "Levitation and Vibration Supression of an Elastic Rotor by Using Active Magnetic Bearings." Proceedings of the ASME 2012 5th Annual Dynamic Systems and Control Conference joint with the JSME 2012 11th Motion and Vibration Conference. Volume 2: Legged Locomotion; Mechatronic Systems; Mechatronics; Mechatronics for Aquatic Environments; MEMS Control; Model Predictive Control; Modeling and Model-Based Control of Advanced IC Engines; Modeling and Simulation; Multi-Agent and Cooperative Systems; Musculoskeletal Dynamic Systems; Nano Systems; Nonlinear Systems; Nonlinear Systems and Control; Optimal Control; Pattern Recognition and Intelligent Systems; Power and Renewable Energy Systems; Powertrain Systems. Fort Lauderdale, Florida, USA. October 17–19, 2012. pp. 61-65. ASME. https://doi.org/10.1115/DSCC2012-MOVIC2012-8602
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