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Open AccessArticle

Optimization of Axial Magnetic Bearing Actuators for Dynamic Performance

Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, VA 22904, USA
Author to whom correspondence should be addressed.
Actuators 2018, 7(4), 66;
Received: 3 September 2018 / Revised: 13 September 2018 / Accepted: 25 September 2018 / Published: 28 September 2018
(This article belongs to the Special Issue Magnetic Bearing Actuators)
Axial magnetic bearing actuators often lack the bandwidth necessary to achieve the desired closed loop performance due to their nonlaminated construction. Since bandwidth can be directly related to actuator material and geometric properties, an opportunity exists to improve closed loop performance through the optimization of these properties. This prospect is exploited herein, both to demonstrate the improvements that can be obtained and to illustrate the relationship between various parameters and dynamic performance. For the latter, Pareto-optimal curves are generated exploring the influence that disk outer radius, peak force, axial gap, and magnetic permeability have upon actuator bandwidth. View Full-Text
Keywords: active magnetic bearings; optimization; bandwidth; eddy currents active magnetic bearings; optimization; bandwidth; eddy currents
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Spece, H.; Fittro, R.; Knospe, C. Optimization of Axial Magnetic Bearing Actuators for Dynamic Performance. Actuators 2018, 7, 66.

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