DocumentCode
843382
Title
Modeling and cancellation of pivot nonlinearity in hard disk drives
Author
Gong, Jian Qin ; Guo, Lin ; Lee, Ho Seong ; Yao, Bin
Author_Institution
Sch. of Mech. Eng., Purdue Univ., West Lafayette, IN, USA
Volume
38
Issue
5
fYear
2002
fDate
9/1/2002 12:00:00 AM
Firstpage
3560
Lastpage
3565
Abstract
This paper considers the issue of modeling the pivot nonlinearity in a typical hard disk drive, taking into account viscous friction, Coulomb friction and hysteresis effects. It presents a nonlinear compensator design, based on a proposed model, to make the compensated system behave like a double integrator regardless of the magnitude of the input current. It describes extensive experiments, carried out in both time domain and frequency domain, to show the effects of pivot nonlinearity and the effectiveness of the compensator
Keywords
compensation; disc drives; frequency-domain analysis; friction; hard discs; magnetic hysteresis; time-domain analysis; Coulomb friction; double integrator; frequency domain; hard disk drives; hysteresis effects; nonlinear compensator design; pivot nonlinearity; time domain; viscous friction; Actuators; Force control; Frequency domain analysis; Frequency measurement; Friction; Hard disks; Hysteresis; Servomechanisms; Time measurement; Tracking;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2002.802745
Filename
1041977
Link To Document