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
Highlights
With the development of the industry and technology, robot and manipulators which can achieve three-degree-offreedom (3-DOF) motion are used more and more widely
This paper mainly presents the application of combined air bearing and magnetic levitation for supporting the m-DOF rotor with satisfied performance
The air bearing and magnetic levitation principles are appropriate for the actuators with 3D structures
Summary
With the development of the industry and technology, robot and manipulators which can achieve three-degree-offreedom (3-DOF) motion are used more and more widely This kind of devices are usually built with several convention driver motor, each having single degree-offreedom, which reduces the position accuracy, efficient, dynamic performance of the system. In this condition, the multi-DOF actuators or motors have attracted many attentions [1]–[10]. There are mainly four methodologies to support the multi-DOF rotor recently These methods are classified into two kinds of contact and noncontact methods. This paper mainly presents the application of combined air bearing and magnetic levitation for supporting the m-DOF rotor with satisfied performance
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
