Please use this identifier to cite or link to this item:
Title: A peak filtering method with improved transient response for narrow-band disturbance rejection in hard disk drives
Authors: Hong, F.
Pang, C.K. 
Keywords: hard disk drives
peak filtering
scaling exercise
transient response
Issue Date: 1-Feb-2014
Citation: Hong, F., Pang, C.K. (2014-02-01). A peak filtering method with improved transient response for narrow-band disturbance rejection in hard disk drives. International Journal of Systems Science 45 (2) : 109-119. ScholarBank@NUS Repository.
Abstract: Peak filtering methods are commonly used in track-following control of hard disk drives (HDDs) to suppress narrow-band disturbances around a specific frequency. When there are significant plant dynamics within the bandwidth of the filter, the closed-loop system is prone to be unstable due to the lightly damped poles of the filter, as well as lightly damped poles of the plant. On the other hand, settling response of such peak filters during shock disturbances is slow, and increases tremendously with decreasing damping ratios. In this article, we present a novel design of peak filters with improved transient responses using a phase scheduling method in addition to varying gain and damping ratio. By doing so, the stability margin of the closed-loop systems during both transient stage and steady-state stage will be improved. The effectiveness of the proposed methodology is verified with extensive simulations and the proposed method is then applied in an integrative servo analysis platform to carry out a scaling exercise to evaluate and predict servo performance to support 10 Terabits/in2. © 2014 Taylor and Francis.
Source Title: International Journal of Systems Science
ISSN: 00207721
DOI: 10.1080/00207721.2012.659707
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Aug 10, 2022


checked on Aug 10, 2022

Page view(s)

checked on Aug 4, 2022

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.