A Miniature Short Stroke Linear Actuator—Design and Analysis
- 21 March 2008
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Magnetics
- Vol. 44 (4), 497-504
- https://doi.org/10.1109/tmag.2008.915459
Abstract
We report a newly developed miniature short stroke tubular linear permanent-magnet actuator for robotic applications. Compared to a rotary-to-linear mechanism, the linear actuator has the advantages of efficiency, thrust control, and compact size in generating linear motion. We optimized the electromagnetic force of the actuator analytically by selecting appropriate dimensions and then predicted the force produced by the winding currents by the finite-element method under the brushless dc excitation scheme. We analyzed the actuation performance by dynamic modeling of the actuator. We constructed and tested a prototype on a specially designed test bench to verify the design. Finally, we analyzed and measured the end effect on the magnetic force due to the limited length of the stator core and translator.Keywords
This publication has 13 references indexed in Scilit:
- A Permanent Magnet Linear Motor for Micro RobotsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- Analysis and Design Optimization of an Improved Axially Magnetized Tubular Permanent-Magnet MachineIEEE Transactions on Energy Conversion, 2004
- Tubular linear permanent magnet motors: an overall comparisonIEEE Transactions on Industry Applications, 2003
- Design criteria of a tubular linear IPM motorPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2001
- 3D multifields FEM computation of transverse flux induction heating for moving-stripsIEEE Transactions on Magnetics, 1999
- Permanent magnet linear motors for short strokesIEEE Transactions on Industry Applications, 1996
- Development of a single-winding linear oscillatory actuator (artificial heart application)IEEE Transactions on Magnetics, 1992
- Piezoelectric micromotors for microrobotsJournal of Microelectromechanical Systems, 1992
- The influence of finite element discretisation on the prediction of cogging torque in permanent magnet excited motorsIEEE Transactions on Magnetics, 1992
- A Tubular Self-Synchronous Motor for Artificial Heart Pump DriveIEEE Transactions on Biomedical Engineering, 1986