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https://scholarbank.nus.edu.sg/handle/10635/73971
DC Field | Value | |
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dc.title | Track-following control of four-bar structured HDD via parameter-dependent pre-compensation | |
dc.contributor.author | Guo, Y. | |
dc.contributor.author | Gao, T. | |
dc.contributor.author | Xie, L. | |
dc.contributor.author | Du, C. | |
dc.contributor.author | Ong, C. | |
dc.date.accessioned | 2014-06-19T05:41:33Z | |
dc.date.available | 2014-06-19T05:41:33Z | |
dc.date.issued | 2012 | |
dc.identifier.citation | Guo, Y.,Gao, T.,Xie, L.,Du, C.,Ong, C. (2012). Track-following control of four-bar structured HDD via parameter-dependent pre-compensation. 2012 Digest APMRC - Asia-Pacific Magnetic Recording Conference: A Strong Tradition. An Exciting New Look! : -. ScholarBank@NUS Repository. | |
dc.identifier.isbn | 9789810720568 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/73971 | |
dc.description.abstract | This paper considers track-following control of four-bar structured hard disk drive systems. Compared with the traditional single-arm HDD, four-bar structure potentially leads to higher achievable close-loop bandwidth, but also brings challenges in control design due to nonlinearity. In track-following control design, exact linearization is impossible in practice due to mechanic resonances and measurement constraint. In this paper, instead of exact linearization, we propose a kind of pre-filter to compensate for the low-frequency nonlinearities so that the compensated system has the same linear approximation at different track positions subject to different high-frequency resonances. With this pre-filter, many existing track-following control methods can be applied to the compensated plant. In this paper, H-infinity loop shaping is used and the simulation results show that the resulting controller preserves similar track-following performance at different track positions. © 2012 DSI. | |
dc.source | Scopus | |
dc.subject | Four bar structure | |
dc.subject | Low-frequency pre-compensation | |
dc.subject | Nonlinearity | |
dc.subject | Track following | |
dc.type | Conference Paper | |
dc.contributor.department | MECHANICAL ENGINEERING | |
dc.description.sourcetitle | 2012 Digest APMRC - Asia-Pacific Magnetic Recording Conference: A Strong Tradition. An Exciting New Look! | |
dc.description.page | - | |
dc.identifier.isiut | NOT_IN_WOS | |
Appears in Collections: | Staff Publications |
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