Design of a servomechanism with sliding mode for a disk drive actuator

Author

Lee, Seung-Hi ; Baek, Sang-Eun ; Chung Choo Chung

Author_Institution

Samsung Inst. of Technol., Suwon, South Korea

Volume

5

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

5253

Abstract

Considers a servomechanism design with sliding mode for disk drives. The proposed servomechanism consists of suboptimal time control for seek, and sliding mode control for settling and tracking. For fast seek, suboptimal time control with feedforward is used. For settling and tracking, observer based sliding mode control with a fixed linear switching hyperplane is designed in the discrete time domain. Through the results of simulation and experiment, it is shown that the proposed servomechanism is effective to reduce velocity tracking error during settling

Keywords

actuators; control system synthesis; disc drives; feedforward; position control; servomechanisms; state estimation; suboptimal control; tracking; variable structure systems; velocity control; discrete time domain; disk drive actuator; fixed linear switching hyperplane; observer based sliding mode control; seek; settling; suboptimal time control; velocity tracking error; Actuators; Design engineering; Disk drives; Resonance; Robustness; Servomechanisms; Sliding mode control; Stability; Target tracking; Velocity control;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 1999. Proceedings of the 38th IEEE Conference on

ISSN

0191-2216

Print_ISBN

0-7803-5250-5

Type

conf

DOI

10.1109/CDC.1999.833388

Filename

833388