A Novel Three-Dimensional Electromagnetic Digital Actuator With 12 Discrete Positions

This paper presents a three-dimensional (3-D) digital electromagnetic actuator able to reach 12 discrete positions distributed in a 3-D space. The mobile part of this actuator includes a cuboid permanent magnet fixed in a hexagonal casing. The mobile part is able to reach six discrete positions in x...

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Bibliographic Details
Published in:IEEE/ASME transactions on mechatronics 2018-08, Vol.23 (4), p.1653-1661
Main Authors: Deshmukh, Ajinkya, Petit, Laurent, Khan, Muneeb Ullah, Lamarque, Frederic, Prelle, Christine
Format: Article
Language:English
Subjects:
Actuation
Actuator design
Actuators
Cavity resonators
Computer simulation
Digital actuators
electromagnetic (Lorentz) force
Electromagnetics
Energy consumption
Engineering Sciences
Force
Laser beam cutting
magnetic force
optical sensor
Permanent magnets
Rapid prototyping
Switches
three-dimensional (3-D) actuator
Wires
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Summary:This paper presents a three-dimensional (3-D) digital electromagnetic actuator able to reach 12 discrete positions distributed in a 3-D space. The mobile part of this actuator includes a cuboid permanent magnet fixed in a hexagonal casing. The mobile part is able to reach six discrete positions in xy-plane at level z 1 and the remaining six discrete positions at level z 2 . The switching of the mobile part in xy-plane is achieved by injecting currents in the fixed planar wires situated beneath it. The actuator design integrates a coil to switch the mobile part between two predefined levels in z-axis. To maintain the mobile part at a discrete position without energy consumption, six fixed cylindrical permanent magnets are placed around the mobile part. To design the actuator, a model has been developed and is presented in this paper. Rapid prototyping approach (laser cutting) is used to fabricate the actuator prototype. The maximum and the minimum strokes in xy-plane are between 0.5 to 1.0 mm while along z-axis the actuator is able to perform a stroke of 1.0 mm. Experiments have been conducted on the prototype to validate the proposed design and the 3-D actuation. The performance characterization has been conduced and the experimental and the simulated results have been compared.
ISSN:1083-4435
1941-014X
DOI:10.1109/TMECH.2018.2841014