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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 | Citation: | 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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