Title :
Access time minimization of a moving coil actuator with volumetric, magnetic and current constraints
Author :
Wagner, J. Arthur
Author_Institution :
Iota Memories, San Jose, CA, USA
Abstract :
The existence of global optima for access time and dissipated power is demonstrated by analysis and numerical example for a volume constrained, magnetically constrained, and electrically constrained moving coil actuator. A simple iterative procedure for access time and power is given. The optima are illustrated by numerically obtained plots for a typical disk drive with 5.25 in diameter disks and a split magnetics linear actuator. The usefulness of the assumptions made for the analysis is discussed
Keywords :
electric actuators; iterative methods; linear motors; machine theory; optimisation; 5.25 in; access time; constraints; disk drive; iterative procedure; linear motors; machine theory; magnetics linear actuator; minimization; moving coil actuator; optimisation; power dissipation; Coils; Disk drives; Disk recording; Geometry; Hydraulic actuators; Magnetic analysis; Magnetic flux; Magnetic heads; Perpendicular magnetic recording; Pneumatic actuators;
Conference_Titel :
Industry Applications Society Annual Meeting, 1992., Conference Record of the 1992 IEEE
Conference_Location :
Houston, TX
Print_ISBN :
0-7803-0635-X
DOI :
10.1109/IAS.1992.244451
