Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/69997
Title: Disturbance rejection on critical resonant mode in hard disk drives
Authors: Dai, G.
Hong, F.
Pang, C.K. 
Nagashima, M.
Keywords: Critical resonant mode
Disturbance rejection
Peak filter
Issue Date: 2010
Source: Dai, G.,Hong, F.,Pang, C.K.,Nagashima, M. (2010). Disturbance rejection on critical resonant mode in hard disk drives. Digest of the Asia-Pacific Magnetic Recording Conference 2010, APMRC 2010 : -. ScholarBank@NUS Repository.
Abstract: In this paper, we propose a control method which combines notch filter and peak filter to provide disturbance rejection at the frequency of critical resonant mode. The settling rate is also improved by time-varying the parameters of the peak filter. Our simulation and experimental results show that the out-of-phase resonant mode is reshaped to an in-phase mode, and the disturbance at the frequency of critical resonant mode is attenuated by 70% with an improved settling rate. The proposed control method is shown to be robust against ± 10% perturbation of natural frequencies.
Source Title: Digest of the Asia-Pacific Magnetic Recording Conference 2010, APMRC 2010
URI: http://scholarbank.nus.edu.sg/handle/10635/69997
ISBN: 9789810860691
Appears in Collections:Staff Publications

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