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Abstract
The mechanics of an active magnetic bearing (AMB) is explained by presenting a practical AMB control scheme. The scheme comprises three parallel feedback loops to achieve dynamic stiffness, static stiffness and damping. These AMB properties are presented for rotor/bearing designers in closed-form functions of exciting frequency and several electronically adjustable parameters. Furthermore, the scheme is translated into a set of first-order differential equations. Combining the AMB formulation with the conventional finite element rotordynamics formulation, a rigorous electromechanical system model is established for forced response and stability analyses.
Presented at the 43rd Annual Meeting in Cleveland, Ohio May 9–12, 1988
Notes
Presented at the 43rd Annual Meeting in Cleveland, Ohio May 9–12, 1988