Time Optimal Seek Trajectories for a Dual Stage Optical Disk Drive Actuator

[+] Author and Article Information
J. McCormick, R. Horowitz

Computer Mechanics Laboratory, Department of Mechanical Engineering, University of California at Berkeley, Berkeley, CA 94720

J. Dyn. Sys., Meas., Control 113(3), 534-536 (Sep 01, 1991) (3 pages) doi:10.1115/1.2896446 History: Received July 31, 1989; Revised May 29, 1990; Online March 17, 2008


A closed-form solution for the time optimal control of a dual actuator disk drive system that takes into account the physical constraint limiting the relative motion of the fine and coarse actuator has been derived. The result is useful for determining track seeking strategies for high performance optical disks. The application of the necessary conditions to a simplified model of the compound actuator is presented and a solution derived.

Copyright © 1991 by The American Society of Mechanical Engineers
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