Title :
Analysis of a Novel Magnetization Pattern for 2-DoF Rotary-Linear Actuators
Author :
Meessen, K.J. ; Paulides, J.J.H. ; Lomonova, E.A.
Author_Institution :
Eindhoven Univ. of Technol., Eindhoven, Netherlands
Abstract :
Direct-drive electromagnetic actuators with multiple degrees of freedom emerge to replace cascaded actuators to improve performance and reliability. An example is the rotary-linear actuator as widely described in literature and used in robotic applications. Checkerboard permanent magnet (PM) arrays are exploited to create a suitable magnetic field distribution. In this paper, a novel PM-array is presented which can be used in combination with classical windings for rotation and translation to realize a cost-efficient actuator. A 2D model is presented and validated to approximate the rotational and translational performance of the actuator.
Keywords :
electromagnetic actuators; magnetisation; permanent magnets; windings; 2D model; 2DoF rotary-linear actuators; PM arrays; cascaded actuators; checkerboard permanent magnet arrays; cost-efficient actuator; degrees of freedom; direct-drive electromagnetic actuators; magnetic field distribution; magnetization pattern analysis; robotic applications; rotation windings; rotational performance; translation windings; translational performance; Actuators; Coils; Force; Magnetization; Stators; Torque; Windings; Actuators; magnetic fields; modeling; permanent magnets (PM); rotary-linear;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2012.2199094
