Electromechanical modeling of actuator dynamics in a load/unload disk drive

Author

Klaassen, Erno H.

Author_Institution

IBM Almaden Res. Center, San Jose, CA, USA

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

2238

Lastpage

2240

Abstract

A modeling technique is presented that provides a convenient and effective means to simulate the behavior of a load/unload disk drive actuator during loading and unloading. The technique uses the PSPICE electric circuit simulator, with the mechanical properties of the actuator and ramp system described by equivalent electronic circuit elements. The model uses a piece-wise continuous approach to incorporate the changing friction forces acting on the actuator. Simulation of the drive circuits, and bidirectional coupling between the mechanical and electronic domains is provided by the model. Modeling results are presented and compared to measurements taken on a prototype disk drive

Keywords

SPICE; disc drives; electric actuators; equivalent circuits; friction; hard discs; piecewise constant techniques; PSPICE electric circuit simulator; actuator dynamics; bidirectional coupling; electromechanical modeling; equivalent electronic circuit elements; friction forces; hard disks; load/unload disk drive; piece-wise continuous approach; Actuators; Circuit simulation; Coils; Coupling circuits; Disk drives; Electronic circuits; Mathematical model; SPICE; Torque; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908375

Filename

908375