Combined Levitation Design and Control of a Novel M-DOF Actuator Based on Air Bearing and Electromagnetic Principle

Authors

  • Zheng LI Hebei University of Science and Technology

DOI:

https://doi.org/10.5755/j01.eee.19.3.1387

Keywords:

Air Bearing, Magnetic Levitation, M-DOF, Actuator

Abstract

Supporting and levitation control are important for actuators or motors with complicated structures. Based on the presented configuration design, the simplified torque calculation model and non-linear system dynamic model have been proposed, and air bearing combined with magnetic levitation mechanism is developed for alleviating the friction and resistance to improve the dynamic performance of this M-DOF actuator. The fluid field model is built in computational fluid dynamics software. Different structure parameters and conditions are computed and compared with the vortex torque characteristics and pressure distribution. A linear mathematical model of the magnetic levitation force is deduced and corresponding control scheme with power drive unit is discussed. Experiment results show that the actuator can effectively implement 3-DOF motion combined with the combined levitation modes, and that the proposed approach can be applied to m-DOF actuators of the same kind effectively.

DOI: http://dx.doi.org/10.5755/j01.eee.19.3.1387

Author Biography

Zheng LI, Hebei University of Science and Technology

School of Electrical Engineering and Information Science,

PhD&Associate Professor

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Published

2013-02-26

How to Cite

LI, Z. (2013). Combined Levitation Design and Control of a Novel M-DOF Actuator Based on Air Bearing and Electromagnetic Principle. Elektronika Ir Elektrotechnika, 19(3), 27-32. https://doi.org/10.5755/j01.eee.19.3.1387

Issue

Section

ELECTRICAL ENGINEERING