Simulation-Based Controller Design for an Active Auxiliary Bearing

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概要

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• A framework for the development of a feedback controller for an active auxiliary bearing is presented. In a new approach, a dry bushing type auxiliary bearing is attached to the foundation via two unidirectional actuators. The control force is applied indirectly using the active auxiliary bearing only in case of rubbing. A simulation for the elastic rotor and the auxiliary bearing including the non-smooth nonlinear dynamics of the rubbing contact is used to develop the feedback controller. A robust two-phase control strategy has been developed which stabilizes the rotor system in case of rubbing and effectively avoids "backward whirling". Experimental studies have been carried out at a rotor test rig. The experiments show the outstanding success of the strategy. In case of rubbing, the contact forces are reduced up to 85%.

• 一般社団法人 日本機械学会の論文

著者

• ULBRICH Heinz

  Institute for Applied Mechanics, Technical University of Munich

• GINZINGER Lucas

  Institute of Applied Mechanics, Technische Universität München

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